django fields - Page 431

ASP.NET. MVC2. Entity Framework. Cannot pass primary key value back from view to [HttpPost]

- by Paul Connolly

I pass a ViewModel (which contains a "Person" object) from the "EditPerson" controller action into the view. When posted back from the view, the ActionResult receives all of the Person properties except the ID (which it says is zero instead of say its real integer) Can anyone tell me why? The controllers look like this: public ActionResult EditPerson(int personID) { var personToEdit = repository.GetPerson(personID); FormationViewModel vm = new FormationViewModel(); vm.Person = personToEdit; return View(vm); } [HttpPost] public ActionResult EditPerson(FormationViewModel model) <<Passes in all properties except ID { // Persistence code } The View looks like this: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Afp.Models.Formation.FormationViewModel>" %> <% using (Html.BeginForm()) {% <%= Html.ValidationSummary(true) % <fieldset> <legend>Fields</legend> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Title) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Title) %> <%= Html.ValidationMessageFor(model => model.Person.Title) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Forename)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Forename)%> <%= Html.ValidationMessageFor(model => model.Person.Forename)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Surname)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Surname)%> <%= Html.ValidationMessageFor(model => model.Person.Surname)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.DOB) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.DOB, String.Format("{0:g}", Model.DOB)) <%= Html.ValidationMessageFor(model => model.DOB) %> </div>--%> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Nationality)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Nationality)%> <%= Html.ValidationMessageFor(model => model.Person.Nationality)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Occupation)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Occupation)%> <%= Html.ValidationMessageFor(model => model.Person.Occupation)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.CountryOfResidence)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.CountryOfResidence)%> <%= Html.ValidationMessageFor(model => model.Person.CountryOfResidence)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.PreviousNameForename)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.PreviousNameForename)%> <%= Html.ValidationMessageFor(model => model.Person.PreviousNameForename)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.PreviousSurname)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.PreviousSurname)%> <%= Html.ValidationMessageFor(model => model.Person.PreviousSurname)%> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Person.Email)%> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Person.Email)%> <%= Html.ValidationMessageFor(model => model.Person.Email)%> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } % And the Person class looks like: [MetadataType(typeof(Person_Validation))] public partial class Person { public Person() { } } [Bind(Exclude = "ID")] public class Person_Validation { public int ID { get; private set; } public string Title { get; set; } public string Forename { get; set; } public string Surname { get; set; } public System.DateTime DOB { get; set; } public string Nationality { get; set; } public string Occupation { get; set; } public string CountryOfResidence { get; set; } public string PreviousNameForename { get; set; } public string PreviousSurname { get; set; } public string Email { get; set; } } And ViewModel: public class FormationViewModel { public Company Company { get; set; } public Address RegisteredAddress { get; set; } public Person Person { get; set; } public PersonType PersonType { get; set; } public int CurrentStep { get; set; } } }

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What’s New in ASP.NET 4.0 Part Two: WebForms and Visual Studio Enhancements

- by Rick Strahl

In the last installment I talked about the core changes in the ASP.NET runtime that I’ve been taking advantage of. In this column, I’ll cover the changes to the Web Forms engine and some of the cool improvements in Visual Studio that make Web and general development easier. WebForms The WebForms engine is the area that has received most significant changes in ASP.NET 4.0. Probably the most widely anticipated features are related to managing page client ids and of ViewState on WebForm pages. Take Control of Your ClientIDs Unique ClientID generation in ASP.NET has been one of the most complained about “features” in ASP.NET. Although there’s a very good technical reason for these unique generated ids - they guarantee unique ids for each and every server control on a page - these unique and generated ids often get in the way of client-side JavaScript development and CSS styling as it’s often inconvenient and fragile to work with the long, generated ClientIDs. In ASP.NET 4.0 you can now specify an explicit client id mode on each control or each naming container parent control to control how client ids are generated. By default, ASP.NET generates mangled client ids for any control contained in a naming container (like a Master Page, or a User Control for example). The key to ClientID management in ASP.NET 4.0 are the new ClientIDMode and ClientIDRowSuffix properties. ClientIDMode supports four different ClientID generation settings shown below. For the following examples, imagine that you have a Textbox control named txtName inside of a master page control container on a WebForms page. <%@Page Language="C#" MasterPageFile="~/Site.Master" CodeBehind="WebForm2.aspx.cs" Inherits="WebApplication1.WebForm2" %> <asp:Content ID="content" ContentPlaceHolderID="content" runat="server" ClientIDMode="Static" > <asp:TextBox runat="server" ID="txtName" /> </asp:Content> The four available ClientIDMode values are: AutoID This is the existing behavior in ASP.NET 1.x-3.x where full naming container munging takes place. <input name="ctl00$content$txtName" type="text" id="ctl00_content_txtName" /> This should be familiar to any ASP.NET developer and results in fairly unpredictable client ids that can easily change if the containership hierarchy changes. For example, removing the master page changes the name in this case, so if you were to move a block of script code that works against the control to a non-Master page, the script code immediately breaks. Static This option is the most deterministic setting that forces the control’s ClientID to use its ID value directly. No naming container naming at all is applied and you end up with clean client ids: <input name="ctl00$content$txtName" type="text" id="txtName" /> Note that the name property which is used for postback variables to the server still is munged, but the ClientID property is displayed simply as the ID value that you have assigned to the control. This option is what most of us want to use, but you have to be clear on that because it can potentially cause conflicts with other controls on the page. If there are several instances of the same naming container (several instances of the same user control for example) there can easily be a client id naming conflict. Note that if you assign Static to a data-bound control, like a list child control in templates, you do not get unique ids either, so for list controls where you rely on unique id for child controls, you’ll probably want to use Predictable rather than Static. I’ll write more on this a little later when I discuss ClientIDRowSuffix. Predictable The previous two values are pretty self-explanatory. Predictable however, requires some explanation. To me at least it’s not in the least bit predictable. MSDN defines this value as follows: This algorithm is used for controls that are in data-bound controls. The ClientID value is generated by concatenating the ClientID value of the parent naming container with the ID value of the control. If the control is a data-bound control that generates multiple rows, the value of the data field specified in the ClientIDRowSuffix property is added at the end. For the GridView control, multiple data fields can be specified. If the ClientIDRowSuffix property is blank, a sequential number is added at the end instead of a data-field value. Each segment is separated by an underscore character (_). The key that makes this value a bit confusing is that it relies on the parent NamingContainer’s ClientID to build its own ClientID value. This effectively means that the value is not predictable at all but rather very tightly coupled to the parent naming container’s ClientIDMode setting. For my simple textbox example, if the ClientIDMode property of the parent naming container (Page in this case) is set to “Predictable” you’ll get this: <input name="ctl00$content$txtName" type="text" id="content_txtName" /> which gives an id that based on walking up to the currently active naming container (the MasterPage content container) and starting the id formatting from there downward. Think of this as a semi unique name that’s guaranteed unique only for the naming container. If, on the other hand, the Page is set to “AutoID” you get the following with Predictable on txtName: <input name="ctl00$content$txtName" type="text" id="ctl00_content_txtName" /> The latter is effectively the same as if you specified AutoID because it inherits the AutoID naming from the Page and Content Master Page control of the page. But again - predictable behavior always depends on the parent naming container and how it generates its id, so the id may not always be exactly the same as the AutoID generated value because somewhere in the NamingContainer chain the ClientIDMode setting may be set to a different value. For example, if you had another naming container in the middle that was set to Static you’d end up effectively with an id that starts with the NamingContainers id rather than the whole ctl000_content munging. The most common use for Predictable is likely to be for data-bound controls, which results in each data bound item getting a unique ClientID. Unfortunately, even here the behavior can be very unpredictable depending on which data-bound control you use - I found significant differences in how template controls in a GridView behave from those that are used in a ListView control. For example, GridView creates clean child ClientIDs, while ListView still has a naming container in the ClientID, presumably because of the template container on which you can’t set ClientIDMode. Predictable is useful, but only if all naming containers down the chain use this setting. Otherwise you’re right back to the munged ids that are pretty unpredictable. Another property, ClientIDRowSuffix, can be used in combination with ClientIDMode of Predictable to force a suffix onto list client controls. For example: <asp:GridView runat="server" ID="gvItems" AutoGenerateColumns="false" ClientIDMode="Static" ClientIDRowSuffix="Id"> <Columns> <asp:TemplateField> <ItemTemplate> <asp:Label runat="server" id="txtName" Text='<%# Eval("Name") %>' ClientIDMode="Predictable"/> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <ItemTemplate> <asp:Label runat="server" id="txtId" Text='<%# Eval("Id") %>' ClientIDMode="Predictable" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> generates client Ids inside of a column in the master page described earlier: <td> <span id="txtName_0">Rick</span> </td> where the value after the underscore is the ClientIDRowSuffix field - in this case “Id” of the item data bound to the control. Note that all of the child controls require ClientIDMode=”Predictable” in order for the ClientIDRowSuffix to be applied, and the parent GridView controls need to be set to Static either explicitly or via Naming Container inheritance to give these simple names. It’s a bummer that ClientIDRowSuffix doesn’t work with Static to produce this automatically. Another real problem is that other controls process the ClientIDMode differently. For example, a ListView control processes the Predictable ClientIDMode differently and produces the following with the Static ListView and Predictable child controls: <span id="ctrl0_txtName_0">Rick</span> I couldn’t even figure out a way using ClientIDMode to get a simple ID that also uses a suffix short of falling back to manually generated ids using <%= %> expressions instead. Given the inconsistencies inside of list controls using <%= %>, ids for the ListView might not be a bad idea anyway. Inherit The final setting is Inherit, which is the default for all controls except Page. This means that controls by default inherit the parent naming container’s ClientIDMode setting. For more detailed information on ClientID behavior and different scenarios you can check out a blog post of mine on this subject: http://www.west-wind.com/weblog/posts/54760.aspx. ClientID Enhancements Summary The ClientIDMode property is a welcome addition to ASP.NET 4.0. To me this is probably the most useful WebForms feature as it allows me to generate clean IDs simply by setting ClientIDMode="Static" on either the page or inside of Web.config (in the Pages section) which applies the setting down to the entire page which is my 95% scenario. For the few cases when it matters - for list controls and inside of multi-use user controls or custom server controls) - I can use Predictable or even AutoID to force controls to unique names. For application-level page development, this is easy to accomplish and provides maximum usability for working with client script code against page controls. ViewStateMode Another area of large criticism for WebForms is ViewState. ViewState is used internally by ASP.NET to persist page-level changes to non-postback properties on controls as pages post back to the server. It’s a useful mechanism that works great for the overall mechanics of WebForms, but it can also cause all sorts of overhead for page operation as ViewState can very quickly get out of control and consume huge amounts of bandwidth in your page content. ViewState can also wreak havoc with client-side scripting applications that modify control properties that are tracked by ViewState, which can produce very unpredictable results on a Postback after client-side updates. Over the years in my own development, I’ve often turned off ViewState on pages to reduce overhead. Yes, you lose some functionality, but you can easily implement most of the common functionality in non-ViewState workarounds. Relying less on heavy ViewState controls and sticking with simpler controls or raw HTML constructs avoids getting around ViewState problems. In ASP.NET 3.x and prior, it wasn’t easy to control ViewState - you could turn it on or off and if you turned it off at the page or web.config level, you couldn’t turn it back on for specific controls. In short, it was an all or nothing approach. With ASP.NET 4.0, the new ViewStateMode property gives you more control. It allows you to disable ViewState globally either on the page or web.config level and then turn it back on for specific controls that might need it. ViewStateMode only works when EnableViewState="true" on the page or web.config level (which is the default). You can then use ViewStateMode of Disabled, Enabled or Inherit to control the ViewState settings on the page. If you’re shooting for minimal ViewState usage, the ideal situation is to set ViewStateMode to disabled on the Page or web.config level and only turn it back on particular controls: <%@Page Language="C#" CodeBehind="WebForm2.aspx.cs" Inherits="Westwind.WebStore.WebForm2" ClientIDMode="Static" ViewStateMode="Disabled" EnableViewState="true" %>  <asp:TextBox runat="server" ID="txtName" ViewStateMode="Enabled" />  <asp:TextBox runat="server" ID="txtAddress" /> Note that the EnableViewState="true" at the Page level isn’t required since it’s the default, but it’s important that the value is true. ViewStateMode has no effect if EnableViewState="false" at the page level. The main benefit of ViewStateMode is that it allows you to more easily turn off ViewState for most of the page and enable only a few key controls that might need it. For me personally, this is a perfect combination as most of my WebForm apps can get away without any ViewState at all. But some controls - especially third party controls - often don’t work well without ViewState enabled, and now it’s much easier to selectively enable controls rather than the old way, which required you to pretty much turn off ViewState for all controls that you didn’t want ViewState on. Inline HTML Encoding HTML encoding is an important feature to prevent cross-site scripting attacks in data entered by users on your site. In order to make it easier to create HTML encoded content, ASP.NET 4.0 introduces a new Expression syntax using <%: %> to encode string values. The encoding expression syntax looks like this: <%: "<script type='text/javascript'>" + "alert('Really?');</script>" %> which produces properly encoded HTML: <script type='text/javascript' >alert('Really?');</script> Effectively this is a shortcut to: <%= HttpUtility.HtmlEncode( "<script type='text/javascript'>" + "alert('Really?');</script>") %> Of course the <%: %> syntax can also evaluate expressions just like <%= %> so the more common scenario applies this expression syntax against data your application is displaying. Here’s an example displaying some data model values: <%: Model.Address.Street %> This snippet shows displaying data from your application’s data store or more importantly, from data entered by users. Anything that makes it easier and less verbose to HtmlEncode text is a welcome addition to avoid potential cross-site scripting attacks. Although I listed Inline HTML Encoding here under WebForms, anything that uses the WebForms rendering engine including ASP.NET MVC, benefits from this feature. ScriptManager Enhancements The ASP.NET ScriptManager control in the past has introduced some nice ways to take programmatic and markup control over script loading, but there were a number of shortcomings in this control. The ASP.NET 4.0 ScriptManager has a number of improvements that make it easier to control script loading and addresses a few of the shortcomings that have often kept me from using the control in favor of manual script loading. The first is the AjaxFrameworkMode property which finally lets you suppress loading the ASP.NET AJAX runtime. Disabled doesn’t load any ASP.NET AJAX libraries, but there’s also an Explicit mode that lets you pick and choose the library pieces individually and reduce the footprint of ASP.NET AJAX script included if you are using the library. There’s also a new EnableCdn property that forces any script that has a new WebResource attribute CdnPath property set to a CDN supplied URL. If the script has this Attribute property set to a non-null/empty value and EnableCdn is enabled on the ScriptManager, that script will be served from the specified CdnPath. [assembly: WebResource( "Westwind.Web.Resources.ww.jquery.js", "application/x-javascript", CdnPath = "http://mysite.com/scripts/ww.jquery.min.js")] Cool, but a little too static for my taste since this value can’t be changed at runtime to point at a debug script as needed, for example. Assembly names for loading scripts from resources can now be simple names rather than fully qualified assembly names, which make it less verbose to reference scripts from assemblies loaded from your bin folder or the assembly reference area in web.config: <asp:ScriptManager runat="server" id="Id" EnableCdn="true" AjaxFrameworkMode="disabled"> <Scripts> <asp:ScriptReference Name="Westwind.Web.Resources.ww.jquery.js" Assembly="Westwind.Web" /> </Scripts> </asp:ScriptManager> The ScriptManager in 4.0 also supports script combining via the CompositeScript tag, which allows you to very easily combine scripts into a single script resource served via ASP.NET. Even nicer: You can specify the URL that the combined script is served with. Check out the following script manager markup that combines several static file scripts and a script resource into a single ASP.NET served resource from a static URL (allscripts.js): <asp:ScriptManager runat="server" id="Id" EnableCdn="true" AjaxFrameworkMode="disabled"> <CompositeScript Path="~/scripts/allscripts.js"> <Scripts> <asp:ScriptReference Path="~/scripts/jquery.js" /> <asp:ScriptReference Path="~/scripts/ww.jquery.js" /> <asp:ScriptReference Name="Westwind.Web.Resources.editors.js" Assembly="Westwind.Web" /> </Scripts> </CompositeScript> </asp:ScriptManager> When you render this into HTML, you’ll see a single script reference in the page: <script src="scripts/allscripts.debug.js" type="text/javascript"></script> All you need to do to make this work is ensure that allscripts.js and allscripts.debug.js exist in the scripts folder of your application - they can be empty but the file has to be there. This is pretty cool, but you want to be real careful that you use unique URLs for each combination of scripts you combine or else browser and server caching will easily screw you up royally. The script manager also allows you to override native ASP.NET AJAX scripts now as any script references defined in the Scripts section of the ScriptManager trump internal references. So if you want custom behavior or you want to fix a possible bug in the core libraries that normally are loaded from resources, you can now do this simply by referencing the script resource name in the Name property and pointing at System.Web for the assembly. Not a common scenario, but when you need it, it can come in real handy. Still, there are a number of shortcomings in this control. For one, the ScriptManager and ClientScript APIs still have no common entry point so control developers are still faced with having to check and support both APIs to load scripts so that controls can work on pages that do or don’t have a ScriptManager on the page. The CdnUrl is static and compiled in, which is very restrictive. And finally, there’s still no control over where scripts get loaded on the page - ScriptManager still injects scripts into the middle of the HTML markup rather than in the header or optionally the footer. This, in turn, means there is little control over script loading order, which can be problematic for control developers. MetaDescription, MetaKeywords Page Properties There are also a number of additional Page properties that correspond to some of the other features discussed in this column: ClientIDMode, ClientTarget and ViewStateMode. Another minor but useful feature is that you can now directly access the MetaDescription and MetaKeywords properties on the Page object to set the corresponding meta tags programmatically. Updating these values programmatically previously required either <%= %> expressions in the page markup or dynamic insertion of literal controls into the page. You can now just set these properties programmatically on the Page object in any Control derived class on the page or the Page itself: Page.MetaKeywords = "ASP.NET,4.0,New Features"; Page.MetaDescription = "This article discusses the new features in ASP.NET 4.0"; Note, that there’s no corresponding ASP.NET tag for the HTML Meta element, so the only way to specify these values in markup and access them is via the @Page tag: <%@Page Language="C#" CodeBehind="WebForm2.aspx.cs" Inherits="Westwind.WebStore.WebForm2" ClientIDMode="Static" MetaDescription="Article that discusses what's new in ASP.NET 4.0" MetaKeywords="ASP.NET,4.0,New Features" %> Nothing earth shattering but quite convenient. Visual Studio 2010 Enhancements for Web Development For Web development there are also a host of editor enhancements in Visual Studio 2010. Some of these are not Web specific but they are useful for Web developers in general. Text Editors Throughout Visual Studio 2010, the text editors have all been updated to a new core engine based on WPF which provides some interesting new features for various code editors including the nice ability to zoom in and out with Ctrl-MouseWheel to quickly change the size of text. There are many more API options to control the editor and although Visual Studio 2010 doesn’t yet use many of these features, we can look forward to enhancements in add-ins and future editor updates from the various language teams that take advantage of the visual richness that WPF provides to editing. On the negative side, I’ve noticed that occasionally the code editor and especially the HTML and JavaScript editors will lose the ability to use various navigation keys like arrows, back and delete keys, which requires closing and reopening the documents at times. This issue seems to be well documented so I suspect this will be addressed soon with a hotfix or within the first service pack. Overall though, the code editors work very well, especially given that they were re-written completely using WPF, which was one of my big worries when I first heard about the complete redesign of the editors. Multi-Targeting Visual Studio now targets all versions of the .NET framework from 2.0 forward. You can use Visual Studio 2010 to work on your ASP.NET 2, 3.0 and 3.5 applications which is a nice way to get your feet wet with the new development environment without having to make changes to existing applications. It’s nice to have one tool to work in for all the different versions. Multi-Monitor Support One cool feature of Visual Studio 2010 is the ability to drag windows out of the Visual Studio environment and out onto the desktop including onto another monitor easily. Since Web development often involves working with a host of designers at the same time - visual designer, HTML markup window, code behind and JavaScript editor - it’s really nice to be able to have a little more screen real estate to work on each of these editors. Microsoft made a welcome change in the environment. IntelliSense Snippets for HTML and JavaScript Editors The HTML and JavaScript editors now finally support IntelliSense scripts to create macro-based template expansions that have been in the core C# and Visual Basic code editors since Visual Studio 2005. Snippets allow you to create short XML-based template definitions that can act as static macros or real templates that can have replaceable values that can be embedded into the expanded text. The XML syntax for these snippets is straight forward and it’s pretty easy to create custom snippets manually. You can easily create snippets using XML and store them in your custom snippets folder (C:\Users\rstrahl\Documents\Visual Studio 2010\Code Snippets\Visual Web Developer\My HTML Snippets and My JScript Snippets), but it helps to use one of the third-party tools that exist to simplify the process for you. I use SnippetEditor, by Bill McCarthy, which makes short work of creating snippets interactively (http://snippeteditor.codeplex.com/). Note: You may have to manually add the Visual Studio 2010 User specific Snippet folders to this tool to see existing ones you’ve created. Code snippets are some of the biggest time savers and HTML editing more than anything deals with lots of repetitive tasks that lend themselves to text expansion. Visual Studio 2010 includes a slew of built-in snippets (that you can also customize!) and you can create your own very easily. If you haven’t done so already, I encourage you to spend a little time examining your coding patterns and find the repetitive code that you write and convert it into snippets. I’ve been using CodeRush for this for years, but now you can do much of the basic expansion natively for HTML and JavaScript snippets. jQuery Integration Is Now Native jQuery is a popular JavaScript library and recently Microsoft has recently stated that it will become the primary client-side scripting technology to drive higher level script functionality in various ASP.NET Web projects that Microsoft provides. In Visual Studio 2010, the default full project template includes jQuery as part of a new project including the support files that provide IntelliSense (-vsdoc files). IntelliSense support for jQuery is now also baked into Visual Studio 2010, so unlike Visual Studio 2008 which required a separate download, no further installs are required for a rich IntelliSense experience with jQuery. Summary ASP.NET 4.0 brings many useful improvements to the platform, but thankfully most of the changes are incremental changes that don’t compromise backwards compatibility and they allow developers to ease into the new features one feature at a time. None of the changes in ASP.NET 4.0 or Visual Studio 2010 are monumental or game changers. The bigger features are language and .NET Framework changes that are also optional. This ASP.NET and tools release feels more like fine tuning and getting some long-standing kinks worked out of the platform. It shows that the ASP.NET team is dedicated to paying attention to community feedback and responding with changes to the platform and development environment based on this feedback. If you haven’t gotten your feet wet with ASP.NET 4.0 and Visual Studio 2010, there’s no reason not to give it a shot now - the ASP.NET 4.0 platform is solid and Visual Studio 2010 works very well for a brand new release. Check it out. © Rick Strahl, West Wind Technologies, 2005-2010Posted in ASP.NET

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Benchmark Linq2SQL, Subsonic2, Subsonic3 - Any other ideas to make them faster ?

- by Aristos

I am working with Subsonic 2 more than 3 years now... After Linq appears and then Subsonic 3, I start thinking about moving to the new Linq futures that are connected to sql. I must say that I start move and port my subsonic 2 with SubSonic 3, and very soon I discover that the speed was so slow thats I didn't believe it - and starts all that tests. Then I test Linq2Sql and see also a delay - compare it with Subsonic 2. My question here is, especial for the linq2sql, and the up-coming dotnet version 4, what else can I do to speed it up ? What else on linq2sql settings, or classes, not on this code that I have used for my messures I place here the project that I make the tests, also the screen shots of the results. How I make the tests - and the accurate of my measures. I use only for my question Google chrome, because its difficult for me to show here a lot of other measures that I have done with more complex programs. This is the most simple one, I just measure the Data Read. How can I prove that. I make a simple Thread.Sleep(10 seconds) and see if I see that 10 seconds on Google Chrome Measure, and yes I see it. here are more test with this Sleep thead to see whats actually Chrome gives. 10 seconds delay 100 ms delay Zero delay There is only a small 15ms thats get on messure, is so small compare it with the rest of my tests that I do not care about. So what I measure I measure just the data read via each method - did not count the data or database delay, or any disk read or anything like that. Later on the image with the result I show that no disk activity exist on the measures See this image to see what really I measure and if this is correct Why I chose this kind of test Its simple, it's real, and it's near my real problem that I found the delay of subsonic 3 in real program with real data. Now lets tests the dals Start by see this image I have 4-5 calls on every method, the one after the other. The results are. For a loop of 100 times, ask for 5 Rows, one not exist, approximatively.. Simple adonet:81ms SubSonic 2 :210ms linq2sql :1.70sec linq2sql using CompiledQuery.Compile :239ms Subsonic 3 :15.00sec (wow - extreme slow) The project http://www.planethost.gr/DalSpeedTests.rar Can any one confirm this benchmark, or make any optimizations to help me out ? Other tests Some one publish here this link http://ormbattle.net/ (and then remove it - don not know why) In this page you can find a really useful advanced tests for all, except subsonic 2 and subsonic 3 that I have here ! Optimizing What I really ask here is if some one can now any trick how to optimize the DALs, not by changing the test code, but by changing the code and the settings on each dal. For example... Optimizing Linq2SQL I start search how to optimize Linq2sql and found this article, and maybe more exist. Finally I make the tricks from that page to run, and optimize the code using them all. The speed was near 1.50sec from 1.70.... big improvement, but still slow. Then I found a different way - same idea article, and wow ! the speed is blow up. Using this trick with CompiledQuery.Compile, the time from 1.5sec is now 239ms. Here is the code for the precompiled... Func<DataClassesDataContext, int, IQueryable<Product>> compiledQuery = CompiledQuery.Compile((DataClassesDataContext meta, int IdToFind) => (from myData in meta.Products where myData.ProductID.Equals(IdToFind) select myData)); StringBuilder Test = new StringBuilder(); int[] MiaSeira = { 5, 6, 10, 100, 7 }; using (DataClassesDataContext context = new DataClassesDataContext()) { context.ObjectTrackingEnabled = false; for (int i = 0; i < 100; i++) { foreach (int EnaID in MiaSeira) { var oFindThat2P = compiledQuery(context, EnaID); foreach (Product One in oFindThat2P) { Test.Append("<br />"); Test.Append(One.ProductName); } } } } Optimizing SubSonic 3 and problems I make many performance profiling, and start change the one after the other and the speed is better but still too slow. I post them on subsonic group but they ignore the problem, they say that everything is fast... Here is some capture of my profiling and delay points inside subsonic source code I have end up that subsonic3 make more call on the structure of the database rather than on data itself. Needs to reconsider the hole way of asking for data, and follow the subsonic2 idea if this is possible. Try to make precompile to subsonic 3 like I did in linq2Sql but fail for the moment... Optimizing SubSonic 2 After I discover that subsonic 3 is extreme slow, I start my checks on subsonic 2 - that I have never done before believing that is fast. (and it is) So its come up with some points that can be faster. For example there are many loops like this ones that actually is slow because of string manipulation and compares inside the loop. I must say to you that this code called million of times ! on a period of few minutes ! of data asking from the program. On small amount of tables and small fields maybe this is not a big think for some people, but on large amount of tables, the delay is even more. So I decide and optimize the subsonic 2 by my self, by replacing the string compares, with number compares! Simple. I do that almost on every point that profiler say that is slow. I change also all small points that can be even a little faster, and disable some not so used thinks. The results, 5% faster on NorthWind database, near 20% faster on my database with 250 tables. That is count with 500ms less in 10 seconds process on northwind, 100ms faster on my database on 500ms process time. I do not have captures to show you for that because I have made them with different code, different time, and track them down on paper. Anyway this is my story and my question on all that, what else do you know to make them even faster... For this measures I have use Subsonic 2.2 optimized by me, Subsonic 3.0.0.3 a little optimized by me, and Dot.Net 3.5

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WPF Data Binding won't work

- by Tokk

Hey, I have got an UserControll with a DependencyProperty called "Risikobewertung" whitch has the own Datatype "RisikoBewertung"(Datatype created by LINQ). So in my Controll I try to bind the Fields of RisikoBewertung to the TextBoxes on the Controll, but It won't work. I hope you can help me, and tell me why ;) Code: UserControl.xaml: <UserControl x:Class="Cis.Modules.RiskManagement.Views.Controls.RisikoBewertungEditor" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:gridtools="clr-namespace:TmgUnity.Common.Presentation.Controls.DataGridTools;assembly=TmgUnity.Common.Presentation" xmlns:converter="clr-namespace:Cis.Modules.RiskManagement.Views.Converter" xmlns:tmg="clr-namespace:TmgUnity.Common.Presentation.Controls.FilterDataGrid;assembly=TmgUnity.Common.Presentation" xmlns:validators="clr-namespace:TmgUnity.Common.Presentation.ValidationRules;assembly=TmgUnity.Common.Presentation" xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit" xmlns:risikoControls="clr-namespace:Cis.Modules.RiskManagement.Views.Controls"> <UserControl.Resources> <converter:CountToArrowConverter x:Key="CountConverter" /> </UserControl.Resources> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Name="Veränderung"/> <ColumnDefinition Name="Volumen" /> <ColumnDefinition Name="Schadenshöhe" /> <ColumnDefinition Name="SchadensOrte" /> <ColumnDefinition Name="Wahrscheinlichkeit" /> <ColumnDefinition Name="Kategorie" /> <ColumnDefinition Name="Handlungsbedarf" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="20" /> <RowDefinition /> </Grid.RowDefinitions> <Image Source="{Binding Path=Entwicklung, Converter={StaticResource CountConverter}, UpdateSourceTrigger=PropertyChanged}" Grid.RowSpan="2" Grid.Row="0" Width="68" Height="68" Grid.Column="0" /> <TextBox Grid.Column="1" Grid.Row="0" Text="Volumen" /> <TextBox Grid.Column="1" Grid.Row="1"> <TextBox.Text> <Binding Path="Volumen" UpdateSourceTrigger="PropertyChanged" /> </TextBox.Text> </TextBox> <TextBox Grid.Column="2" Grid.Row="0" Text="Schadenshöhe" /> <TextBox Grid.Column="2" Grid.Row="1" Text="{Binding Path=Schadenshöhe, UpdateSourceTrigger=PropertyChanged}" /> <StackPanel Grid.Column="3" Grid.RowSpan="2" Grid.Row="0" Orientation="Horizontal"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="20" /> <RowDefinition /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <TextBox Text ="Politik" Grid.Row="0" Grid.Column="0"/> <CheckBox Name="Politik" Grid.Row="1" Grid.Column="0" IsChecked="{Binding Path=Politik, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center" /> <TextBox Text ="Vermögen" Grid.Row="0" Grid.Column="1" /> <CheckBox Name="Vermögen" Grid.Row="1" Grid.Column="1" IsChecked="{Binding Path=Vermögen, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center" /> <TextBox Text ="Vertrauen" Grid.Row="0" Grid.Column="2" /> <CheckBox Name="Vertrauen" Grid.Row="1" Grid.Column="2" IsChecked="{Binding Path=Vertrauen, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Center" HorizontalAlignment="Center" /> </Grid> </StackPanel> <TextBox Grid.Column="4" Grid.Row="0" Text="Wahrscheinlichkeit" /> <TextBox Grid.Column="4" Grid.Row="1" Text="{Binding Path=Wahrscheinlichkeit, UpdateSourceTrigger=PropertyChanged}"/> <risikoControls:RiskTrafficLightControl Grid.Column="5" Grid.Row="0" Grid.RowSpan="2" RiskValue="{Binding Path=Kategorie, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" /> <StackPanel Grid.Column="6" Grid.RowSpan="2" Grid.Row="0" Orientation="Vertical"> <TextBox Text="Handlungsbedarf" /> <CheckBox VerticalAlignment="Center" HorizontalAlignment="Center" IsChecked="{Binding Path=Handlungsbedarf, UpdateSourceTrigger=PropertyChanged}" /> </StackPanel> </Grid> The CodeBehind: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.ComponentModel; using Cis.Modules.RiskManagement.Data; using Cis.Modules.RiskManagement.Views.Models; namespace Cis.Modules.RiskManagement.Views.Controls { /// <summary> /// Interaktionslogik für RisikoBewertungEditor.xaml /// </summary> public partial class RisikoBewertungEditor : UserControl, INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public static readonly DependencyProperty RisikoBewertungProperty = DependencyProperty.Register("RisikoBewertung", typeof(RisikoBewertung), typeof(RisikoBewertungEditor), new PropertyMetadata(null, new PropertyChangedCallback(RisikoBewertungChanged))); // public static readonly DependencyProperty Readonly = DependencyProperty.Register("EditorReadonly", typeof(Boolean), typeof(RisikoBewertungEditor), new PropertyMetadata(null, new PropertyChangedCallback(ReadonlyChanged))); private static void RisikoBewertungChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs arguments) { var bewertungEditor = dependencyObject as RisikoBewertungEditor; bewertungEditor.RisikoBewertung = arguments.NewValue as RisikoBewertung; } /* private static void ReadonlyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs arguments) { } */ public RisikoBewertung RisikoBewertung { get { return GetValue(RisikoBewertungProperty) as RisikoBewertung; } set { SetValue(RisikoBewertungProperty, value); if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("RisikoBewertung")); } } } /* public Boolean EditorReadonly { get; set; } */ public void mebosho(object sender, RoutedEventArgs e) { MessageBox.Show(RisikoBewertung.LfdNr.ToString()); } public RisikoBewertungEditor() { InitializeComponent(); RisikoBewertung = new RisikoBewertung(); this.DataContext = (GetValue(RisikoBewertungProperty) as RisikoBewertung); } } } and a little example of it's usage: <tmg:FilterDataGrid Grid.Row="0" AutoGenerateColumns="False" ItemsSource="{Binding TodoListe}" IsReadOnly="False" x:Name="TodoListeDataGrid" CanUserAddRows="False" SelectionUnit="FullRow" SelectedValuePath="." SelectedValue="{Binding CurrentTodoItem}" gridtools:DataGridStyle.SelectAllButtonTemplate="{DynamicResource CisSelectAllButtonTemplate}" CanUserResizeColumns="True" MinHeight="80" SelectionChanged="SelectionChanged" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" diagnostics:PresentationTraceSources.TraceLevel="High" > <tmg:FilterDataGrid.RowDetailsTemplate> <DataTemplate> <risikoControls:RisikoBewertungEditor x:Name="BewertungEditor" RisikoBewertung="{Binding ElementName=TodoListeDataGrid, Path=SelectedValue}" diagnostics:PresentationTraceSources.TraceLevel="High"> </risikoControls:RisikoBewertungEditor> </DataTemplate> </tmg:FilterDataGrid.RowDetailsTemplate> <tmg:FilterDataGrid.Columns> <toolkit:DataGridTextColumn Binding="{Binding Path=LfdNr}" Header="LfdNr" /> </tmg:FilterDataGrid.Columns> </tmg:FilterDataGrid>

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xVal 1.0 not generating the correct xVal.AttachValidator script in view

- by bastijn

I'm currently implementing xVal client-side validation. The server-side validation is working correctly at the moment. I have referenced xVall.dll (from xVal1.0.zip) in my project as well as the System.ComponentModel.DataAnnotations and System.web.mvc.DataAnnotations from the Data Annotations Model Binder Sample found at http://aspnet.codeplex.com/releases/view/24471. I have modified the method BindProperty in the DataAnnotationsModelBinder class since it returned a nullpointer exception telling me the modelState object was null. Some blogposts described to modify the method and I did according to this SO post. Next I put the following lines in my global.asax: protected void Application_Start() { // kept same and added following line RegisterModelBinders(ModelBinders.Binders); // Add this line } public void RegisterModelBinders(ModelBinderDictionary binders) // Add this whole method { binders.DefaultBinder = new Microsoft.Web.Mvc.DataAnnotations.DataAnnotationsModelBinder(); } Now, I have made a partial class and a metadata class since I use the entity framework and you cannot create partial declarations as of yet so I have: [MetadataType(typeof(PersonMetaData))] public partial class Persons { // .... } public class PersonMetaData { private const string EmailRegEx = @"^(([^<>()[\]\\.,;:\s@\""]+" + @"(\.[^<>()[\]\\.,;:\s@\""]+)*)|(\"".+\""))@" + @"((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" + @"\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+" + @"[a-zA-Z]{2,}))$"; [Required] public string FirstName { get; set; } [Required] public string LastName { get; set; } [Required(ErrorMessage="Please fill in your email")] [RegularExpression(EmailRegEx,ErrorMessage="Please supply a valid email address")] public string Email { get; set; } } And in my controller I have the POST edit method which currently still use a FormCollection instead of a Persons object as input. I have to change this later on but due to time constraints and some strange bug this isnt done as of yet :). It shouldnt matter though. Below it is my view. // // POST: /Jobs/Edit/5 //[CustomAuthorize(Roles = "admin,moderator")] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit([Bind(Exclude = "Id")]FormCollection form) { Persons person = this.GetLoggedInPerson(); person.UpdatedAt = DateTime.Now; // Update the updated time. TryUpdateModel(person, null, null, new string[]{"Id"}); if (ModelState.IsValid) { repository.SaveChanges(); return RedirectToAction("Index", "ControlPanel"); } return View(person); } #endregion My view contains a partial page containing the form. In my edit.aspx I have the following code: <div class="content"> <% Html.RenderPartial("PersonForm", Model); %> </div> </div> and in the .ascx partial page: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<WerkStageNu.Persons>" %> <% if (!Model.AddressesReference.IsLoaded) { %> <% Model.AddressesReference.Load(); %> <% } %> <%= Html.ValidationSummary("Edit was unsuccessful. Please correct the errors and try again.") %> <% using (Html.BeginForm()) {%> <fieldset> <legend>General information</legend> <table> <tr> <td><label for="FirstName">FirstName:</label></td><td><%= Html.TextBox("FirstName", Model.FirstName)%><%= Html.ValidationMessage("FirstName", "*")%></td> </tr> <tr> <td><label for="LastName">LastName:</label></td><td><%= Html.TextBox("LastName", Model.LastName)%><%= Html.ValidationMessage("LastName", "*")%></td> </tr> <tr> <td><label for="Email">Email:</label></td><td><%= Html.TextBox("Email", Model.Email)%><%= Html.ValidationMessage("Email", "*")%></td> </tr> <tr> <td><label for="Telephone">Telephone:</label></td><td> <%= Html.TextBox("Telephone", Model.Telephone) %><%= Html.ValidationMessage("Telephone", "*") %></td> </tr> <tr> <td><label for="Fax">Fax:</label></td><td><%= Html.TextBox("Fax", Model.Fax) %><%= Html.ValidationMessage("Fax", "*") %></td> </tr> </table> <%--<p> <label for="GenderID"><%= Html.Encode(Resources.Forms.gender) %>:</label> <%= Html.DropDownList("GenderID", Model.Genders)%> </p> --%> </fieldset> <fieldset> <legend><%= Html.Encode(Resources.Forms.addressinformation) %></legend> <table> <tr> <td><label for="Addresses.City"><%= Html.Encode(Resources.Forms.city) %>:</label></td><td><%= Html.TextBox("Addresses.City", Model.Addresses.City)%></td> </tr> <tr> <td><label for="Addresses.Street"><%= Html.Encode(Resources.Forms.street) %>:</label></td><td><%= Html.TextBox("Addresses.Street", Model.Addresses.Street)%></td> </tr> <tr> <td><label for="Addresses.StreetNo"><%= Html.Encode(Resources.Forms.streetNumber) %>:</label></td><td><%= Html.TextBox("Addresses.StreetNo", Model.Addresses.StreetNo)%></td> </tr> <tr> <td><label for="Addresses.Country"><%= Html.Encode(Resources.Forms.county) %>:</label></td><td><%= Html.TextBox("Addresses.Country", Model.Addresses.Country)%></td> </tr> </table> </fieldset> <p> <input type="image" src="../../Content/images/save_btn.png" /> </p> <%= Html.ClientSideValidation(typeof(WerkStageNu.Persons)) %> <% } % Still nothing really stunning over here. In combination with the edited data annotation dlls this gives me server-side validation working (although i have to manually exclude the "id" property as done in the TryUpdateModel). The strange thing is that it still generates the following script in my View: xVal.AttachValidator(null, {"Fields":[{"FieldName":"ID","FieldRules": [{"RuleName":"DataType","RuleParameters":{"Type":"Integer"}}]}]}, {}) While all the found blogposts on this ( 1, 2 ) but all of those are old posts and all say it should be fixed from xVal 0.8 and up. The last thing I found was this post but I did not really understand. I referenced using Visual Studio - add reference -- browse - selected from my bin dir where I stored the external compiled dlls (copied to the bin dir of my project). Can anyone tell me where the problem originates from? EDIT Adding the reference from the .NET tab fixed the problem somehow. While earlier adding from this tab resulted in a nullpointer error since it used the standard DataAnnotations delivered with the MVC1 framework instead of the freshly build one. Is it because I dropped the .dll in my bin dir that it now picks the correct one? Or why?

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Form contents not showing in email

- by fmz

This is a followup to a question I posted yesterday. I thought everything was working fine, but today, I am not getting any results in the email from the drop down field. Here is the form code in question: <label for="purpose"><span class="required">*</span> Purpose</label> <select id="purpose" name="purpose" style="width: 300px; height:35px;"> <option value="" selected="selected">-- Select One --</option> <option value="I am interested in your services">I am interested in your services!</option> <option value="I am interested in a partnership">I am interested in a partnership!</option> <option value="I am interested in a job">I am interested in a job!</option> </select> It is then processed in PHP and should output the selected option to an email, however the Reason for Contact line always comes through with nothing in it. Here is the PHP code: <?php if(!$_POST) exit; $name = $_POST['name']; $company = $_POST['company']; $email = $_POST['email']; $phone = $_POST['phone']; $purpose = $_POST['purpose']; $comments = $_POST['comments']; $verify = $_POST['verify']; if(trim($name) == '') { echo '<div class="error_message">Attention! You must enter your name.</div>'; exit(); } else if(trim($email) == '') { echo '<div class="error_message">Attention! Please enter a valid email address.</div>'; exit(); } else if(trim($phone) == '') { echo '<div class="error_message">Attention! Please enter a valid phone number.</div>'; exit(); } else if(!isEmail($email)) { echo '<div class="error_message">Attention! You have enter an invalid e-mail address, try again.</div>'; exit(); } if(trim($comments) == '') { echo '<div class="error_message">Attention! Please enter your message.</div>'; exit(); } else if(trim($verify) == '') { echo '<div class="error_message">Attention! Please enter the verification number.</div>'; exit(); } else if(trim($verify) != '4') { echo '<div class="error_message">Attention! The verification number you entered is incorrect.</div>'; exit(); } if($error == '') { if(get_magic_quotes_gpc()) { $comments = stripslashes($comments); } // Configuration option. // Enter the email address that you want to emails to be sent to. // Example $address = "[email protected]"; $address = "[email protected]"; // Configuration option. // i.e. The standard subject will appear as, "You've been contacted by John Doe." // Example, $e_subject = '$name . ' has contacted you via Your Website.'; $e_subject = 'You\'ve been contacted by ' . $name . '.'; // Configuration option. // You can change this if you feel that you need to. // Developers, you may wish to add more fields to the form, in which case you must be sure to add them here. $e_body = "You have been contacted by $name.\r\n\n"; $e_company = "Company: $company\r\n\n"; $e_content = "Comments: \"$comments\"\r\n\n"; $e_purpose = "Reason for contact: $purpose\r\n\n"; $e_reply = "You can contact $name via email, $email or via phone $phone"; $msg = $e_body . $e_content . $e_company . $e_purpose . $e_reply; if(mail($address, $e_subject, $msg, "From: $email\r\nReply-To: $email\r\nReturn-Path: $email\r\n")) { // Email has sent successfully, echo a success page. echo "<fieldset>"; echo "<div id='success_page'>"; echo "<h1>Email Sent Successfully.</h1>"; echo "<p>Thank you <strong>$name</strong>, your message has been submitted to us.</p>"; echo "</div>"; echo "</fieldset>"; } else { echo 'ERROR!'; } } function isEmail($email) { // Email address verification, do not edit. return(preg_match("/^[-_.[:alnum:]]+@((([[:alnum:]]|[[:alnum:]][[:alnum:]-]*[[:alnum:]])\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i",$email)); } ?> Any assistance would be greatly appreciated. Thanks!

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With a jquery modular dialog how do I stop the form values from persisting?

- by stormist

(Citing source at: http://jqueryui.com/demos/dialog/#modal-form) As an example, this works great but each time the form is subsequently opened the user entered values remain. How can I stop this behavior? (the form will be used multiple times on the same page. <style type="text/css"> body { font-size: 62.5%; } label, input { display:block; } input.text { margin-bottom:12px; width:95%; padding: .4em; } fieldset { padding:0; border:0; margin-top:25px; } h1 { font-size: 1.2em; margin: .6em 0; } div#users-contain { width: 350px; margin: 20px 0; } div#users-contain table { margin: 1em 0; border-collapse: collapse; width: 100%; } div#users-contain table td, div#users-contain table th { border: 1px solid #eee; padding: .6em 10px; text-align: left; } .ui-dialog .ui-state-error { padding: .3em; } .validateTips { border: 1px solid transparent; padding: 0.3em; } </style> <script type="text/javascript"> $(function() { // a workaround for a flaw in the demo system (http://dev.jqueryui.com/ticket/4375), ignore! $("#dialog").dialog("destroy"); var name = $("#name"), email = $("#email"), password = $("#password"), allFields = $([]).add(name).add(email).add(password), tips = $(".validateTips"); function updateTips(t) { tips .text(t) .addClass('ui-state-highlight'); setTimeout(function() { tips.removeClass('ui-state-highlight', 1500); }, 500); } function checkLength(o,n,min,max) { if ( o.val().length > max || o.val().length < min ) { o.addClass('ui-state-error'); updateTips("Length of " + n + " must be between "+min+" and "+max+"."); return false; } else { return true; } } function checkRegexp(o,regexp,n) { if ( !( regexp.test( o.val() ) ) ) { o.addClass('ui-state-error'); updateTips(n); return false; } else { return true; } } $("#dialog-form").dialog({ autoOpen: false, height: 300, width: 350, modal: true, buttons: { 'Create an account': function() { var bValid = true; allFields.removeClass('ui-state-error'); bValid = bValid && checkLength(name,"username",3,16); bValid = bValid && checkLength(email,"email",6,80); bValid = bValid && checkLength(password,"password",5,16); bValid = bValid && checkRegexp(name,/^[a-z]([0-9a-z_])+$/i,"Username may consist of a-z, 0-9, underscores, begin with a letter."); // From jquery.validate.js (by joern), contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/ bValid = bValid && checkRegexp(email,/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i,"eg. [email protected]"); bValid = bValid && checkRegexp(password,/^([0-9a-zA-Z])+$/,"Password field only allow : a-z 0-9"); if (bValid) { $('#users tbody').append('<tr>' + '<td>' + name.val() + '</td>' + '<td>' + email.val() + '</td>' + '<td>' + password.val() + '</td>' + '</tr>'); $(this).dialog('close'); } }, Cancel: function() { $(this).dialog('close'); } }, close: function() { allFields.val('').removeClass('ui-state-error'); } }); $('#create-user') .button() .click(function() { $('#dialog-form').dialog('open'); }); }); </script> <div class="demo"> <div id="dialog-form" title="Create new user"> <p class="validateTips">All form fields are required.</p> <form> <fieldset> <label for="name">Name</label> <input type="text" name="name" id="name" class="text ui-widget-content ui-corner-all" /> <label for="email">Email</label> <input type="text" name="email" id="email" value="" class="text ui-widget-content ui-corner-all" /> <label for="password">Password</label> <input type="password" name="password" id="password" value="" class="text ui-widget-content ui-corner-all" /> </fieldset> </form> </div> <div id="users-contain" class="ui-widget"> <h1>Existing Users:</h1> <table id="users" class="ui-widget ui-widget-content"> <thead> <tr class="ui-widget-header "> <th>Name</th> <th>Email</th> <th>Password</th> </tr> </thead> <tbody> <tr> <td>John Doe</td> <td>[email protected]</td> <td>johndoe1</td> </tr> </tbody> </table> </div> <button id="create-user">Create new user</button> </div> <div class="demo-description"> <p>Use a modal dialog to require that the user enter data during a multi-step process. Embed form markup in the content area, set the <code>modal</code> option to true, and specify primary and secondary user actions with the <code>buttons</code> option.</p> </div>

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xVal 1.0 not generating the correct xVal.AttachValidator

- by bastijn

I'm currently implementing xVal client-side validation. The server-side validation is working correctly at the moment. I have referenced xVall.dll (from xVal1.0.zip) in my project as well as the System.ComponentModel.DataAnnotations and System.web.mvc.DataAnnotations from the Data Annotations Model Binder Sample found at http://aspnet.codeplex.com/releases/view/24471. I have modified the method BindProperty in the DataAnnotationsModelBinder class since it returned a nullpointer exception telling me the modelState object was null. Some blogposts described to modify the method and I did according to this SO post. Next I put the following lines in my global.asax: protected void Application_Start() { // kept same and added following line RegisterModelBinders(ModelBinders.Binders); // Add this line } public void RegisterModelBinders(ModelBinderDictionary binders) // Add this whole method { binders.DefaultBinder = new Microsoft.Web.Mvc.DataAnnotations.DataAnnotationsModelBinder(); } Now, I have made a partial class and a metadata class since I use the entity framework and you cannot create partial declarations as of yet so I have: [MetadataType(typeof(PersonMetaData))] public partial class Persons { // .... } public class PersonMetaData { private const string EmailRegEx = @"^(([^<>()[\]\\.,;:\s@\""]+" + @"(\.[^<>()[\]\\.,;:\s@\""]+)*)|(\"".+\""))@" + @"((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" + @"\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+" + @"[a-zA-Z]{2,}))$"; [Required] public string FirstName { get; set; } [Required] public string LastName { get; set; } [Required(ErrorMessage="Please fill in your email")] [RegularExpression(EmailRegEx,ErrorMessage="Please supply a valid email address")] public string Email { get; set; } } And in my controller I have the POST edit method which currently still use a FormCollection instead of a Persons object as input. I have to change this later on but due to time constraints and some strange bug this isnt done as of yet :). It shouldnt matter though. Below it is my view. // // POST: /Jobs/Edit/5 //[CustomAuthorize(Roles = "admin,moderator")] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit([Bind(Exclude = "Id")]FormCollection form) { Persons person = this.GetLoggedInPerson(); person.UpdatedAt = DateTime.Now; // Update the updated time. TryUpdateModel(person, null, null, new string[]{"Id"}); if (ModelState.IsValid) { repository.SaveChanges(); return RedirectToAction("Index", "ControlPanel"); } return View(person); } #endregion My view contains a partial page containing the form. In my edit.aspx I have the following code: <div class="content"> <% Html.RenderPartial("PersonForm", Model); %> </div> </div> and in the .ascx partial page: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<WerkStageNu.Persons>" %> <% if (!Model.AddressesReference.IsLoaded) { % <% Model.AddressesReference.Load(); % <% } % <%= Html.ValidationSummary("Edit was unsuccessful. Please correct the errors and try again.") % <% using (Html.BeginForm()) {%> <fieldset> <legend>General information</legend> <table> <tr> <td><label for="FirstName">FirstName:</label></td><td><%= Html.TextBox("FirstName", Model.FirstName)%><%= Html.ValidationMessage("FirstName", "*")%></td> </tr> <tr> <td><label for="LastName">LastName:</label></td><td><%= Html.TextBox("LastName", Model.LastName)%><%= Html.ValidationMessage("LastName", "*")%></td> </tr> <tr> <td><label for="Email">Email:</label></td><td><%= Html.TextBox("Email", Model.Email)%><%= Html.ValidationMessage("Email", "*")%></td> </tr> <tr> <td><label for="Telephone">Telephone:</label></td><td> <%= Html.TextBox("Telephone", Model.Telephone) %><%= Html.ValidationMessage("Telephone", "*") %></td> </tr> <tr> <td><label for="Fax">Fax:</label></td><td><%= Html.TextBox("Fax", Model.Fax) %><%= Html.ValidationMessage("Fax", "*") %></td> </tr> </table> <%--<p> <label for="GenderID"><%= Html.Encode(Resources.Forms.gender) %>:</label> <%= Html.DropDownList("GenderID", Model.Genders)%> </p> --%> </fieldset> <fieldset> <legend><%= Html.Encode(Resources.Forms.addressinformation) %></legend> <table> <tr> <td><label for="Addresses.City"><%= Html.Encode(Resources.Forms.city) %>:</label></td><td><%= Html.TextBox("Addresses.City", Model.Addresses.City)%></td> </tr> <tr> <td><label for="Addresses.Street"><%= Html.Encode(Resources.Forms.street) %>:</label></td><td><%= Html.TextBox("Addresses.Street", Model.Addresses.Street)%></td> </tr> <tr> <td><label for="Addresses.StreetNo"><%= Html.Encode(Resources.Forms.streetNumber) %>:</label></td><td><%= Html.TextBox("Addresses.StreetNo", Model.Addresses.StreetNo)%></td> </tr> <tr> <td><label for="Addresses.Country"><%= Html.Encode(Resources.Forms.county) %>:</label></td><td><%= Html.TextBox("Addresses.Country", Model.Addresses.Country)%></td> </tr> </table> </fieldset> <p> <input type="image" src="../../Content/images/save_btn.png" /> </p> <%= Html.ClientSideValidation(typeof(WerkStageNu.Persons)) %> <% } % Still nothing really stunning over here. In combination with the edited data annotation dlls this gives me server-side validation working (although i have to manually exclude the "id" property as done in the TryUpdateModel). The strange thing is that it still generates the following script in my View: xVal.AttachValidator(null, {"Fields":[{"FieldName":"ID","FieldRules": [{"RuleName":"DataType","RuleParameters":{"Type":"Integer"}}]}]}, {}) While all the found blogposts on this ( 1, 2 ) but all of those are old posts and all say it should be fixed from xVal 0.8 and up. The last thing I found was this post but I did not really understand. I referenced using Visual Studio - add reference -- browse - selected from my bin dir where I stored the external compiled dlls (copied to the bin dir of my project). Can anyone tell me where the problem originates from?

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Implementing an async "read all currently available data from stream" operation

- by Jon

I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a console's standard output Stream. Console output streams are of type FileStream; the implementation can cast to that, if needed. There is also an associated StreamReader already present to leverage. There is only one thing I need to implement in this class to achieve my desired functionality: an async "read all the data available this moment" operation. Reading to the end of the stream is not viable because the stream will not end unless the process closes the console output handle, and it will not do that because it is interactive and expecting input before continuing. I will be using that hypothetical async operation to implement event-based notification, which will be more convenient for my callers. The public interface of the class is this: public class ConsoleAutomator { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Remember that the goal here is to read all of the chunk and call event subscribers exactly once for each chunk. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream. private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer (in which case we know that there was no more data to be read during the last read operation), all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Never more than one event for each time data is available to be read Is almost agnostic to the buffer size The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this. Update: I definitely did not communicate the scenario well in my initial writeup. I have since revised the writeup quite a bit, but to be extra sure: The question is about how to implement an async "read all the data available this moment" operation. My apologies to the people who took the time to read and answer without me making my intent clear enough.

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Building applications with WCF - Intro

- by skjagini

I am going to write series of articles using Windows Communication Framework (WCF) to develop client and server applications and this is the first part of that series. What is WCF As Juwal puts in his Programming WCF book, WCF provides an SDK for developing and deploying services on Windows, provides runtime environment to expose CLR types as services and consume services as CLR types. Building services with WCF is incredibly easy and it’s implementation provides a set of industry standards and off the shelf plumbing including service hosting, instance management, reliability, transaction management, security etc such that it greatly increases productivity Scenario: Lets consider a typical bank customer trying to create an account, deposit amount and transfer funds between accounts, i.e. checking and savings. To make it interesting, we are going to divide the functionality into multiple services and each of them working with database directly. We will run test cases with and without transactional support across services. In this post we will build contracts, services, data access layer, unit tests to verify end to end communication etc, nothing big stuff here and we dig into other features of the WCF in subsequent posts with incremental changes. In any distributed architecture we have two pieces i.e. services and clients. Services as the name implies provide functionality to execute various pieces of business logic on the server, and clients providing interaction to the end user. Services can be built with Web Services or with WCF. Service built on WCF have the advantage of binding independent, i.e. can run against TCP and HTTP protocol without any significant changes to the code. Solution Services Profile: For creating a new bank customer, getting details about existing customer ProfileContract ProfileService Checking Account: To get checking account balance, deposit or withdraw amount CheckingAccountContract CheckingAccountService Savings Account: To get savings account balance, deposit or withdraw amount SavingsAccountContract SavingsAccountService ServiceHost: To host services, i.e. running the services at particular address, binding and contract where client can connect to Client: Helps end user to use services like creating account and amount transfer between the accounts BankDAL: Data access layer to work with database BankDAL It’s no brainer not to use an ORM as many matured products are available currently in market including Linq2Sql, Entity Framework (EF), LLblGenPro etc. For this exercise I am going to use Entity Framework 4.0, CTP 5 with code first approach. There are two approaches when working with data, data driven and code driven. In data driven we start by designing tables and their constrains in database and generate entities in code while in code driven (code first) approach entities are defined in code and the metadata generated from the entities is used by the EF to create tables and table constrains. In previous versions the entity classes had to derive from EF specific base classes. In EF 4 it is not required to derive from any EF classes, the entities are not only persistence ignorant but also enable full test driven development using mock frameworks. Application consists of 3 entities, Customer entity which contains Customer details; CheckingAccount and SavingsAccount to hold the respective account balance. We could have introduced an Account base class for CheckingAccount and SavingsAccount which is certainly possible with EF mappings but to keep it simple we are just going to follow 1 –1 mapping between entity and table mappings. Lets start out by defining a class called Customer which will be mapped to Customer table, observe that the class is simply a plain old clr object (POCO) and has no reference to EF at all. using System; namespace BankDAL.Model { public class Customer { public int Id { get; set; } public string FullName { get; set; } public string Address { get; set; } public DateTime DateOfBirth { get; set; } } } In order to inform EF about the Customer entity we have to define a database context with properties of type DbSet<> for every POCO which needs to be mapped to a table in database. EF uses convention over configuration to generate the metadata resulting in much less configuration. using System.Data.Entity; namespace BankDAL.Model { public class BankDbContext: DbContext { public DbSet<Customer> Customers { get; set; } } } Entity constrains can be defined through attributes on Customer class or using fluent syntax (no need to muscle with xml files), CustomerConfiguration class. By defining constrains in a separate class we can maintain clean POCOs without corrupting entity classes with database specific information. using System; using System.Data.Entity.ModelConfiguration; namespace BankDAL.Model { public class CustomerConfiguration: EntityTypeConfiguration<Customer> { public CustomerConfiguration() { Initialize(); } private void Initialize() { //Setting the Primary Key this.HasKey(e => e.Id); //Setting required fields this.HasRequired(e => e.FullName); this.HasRequired(e => e.Address); //Todo: Can't create required constraint as DateOfBirth is not reference type, research it //this.HasRequired(e => e.DateOfBirth); } } } Any queries executed against Customers property in BankDbContext are executed against Cusomers table. By convention EF looks for connection string with key of BankDbContext when working with the context. We are going to define a helper class to work with Customer entity with methods for querying, adding new entity etc and these are known as repository classes, i.e., CustomerRepository using System; using System.Data.Entity; using System.Linq; using BankDAL.Model; namespace BankDAL.Repositories { public class CustomerRepository { private readonly IDbSet<Customer> _customers; public CustomerRepository(BankDbContext bankDbContext) { if (bankDbContext == null) throw new ArgumentNullException(); _customers = bankDbContext.Customers; } public IQueryable<Customer> Query() { return _customers; } public void Add(Customer customer) { _customers.Add(customer); } } } From the above code it is observable that the Query methods returns customers as IQueryable i.e. customers are retrieved only when actually used i.e. iterated. Returning as IQueryable also allows to execute filtering and joining statements from business logic using lamba expressions without cluttering the data access layer with tens of methods. Our CheckingAccountRepository and SavingsAccountRepository look very similar to each other using System; using System.Data.Entity; using System.Linq; using BankDAL.Model; namespace BankDAL.Repositories { public class CheckingAccountRepository { private readonly IDbSet<CheckingAccount> _checkingAccounts; public CheckingAccountRepository(BankDbContext bankDbContext) { if (bankDbContext == null) throw new ArgumentNullException(); _checkingAccounts = bankDbContext.CheckingAccounts; } public IQueryable<CheckingAccount> Query() { return _checkingAccounts; } public void Add(CheckingAccount account) { _checkingAccounts.Add(account); } public IQueryable<CheckingAccount> GetAccount(int customerId) { return (from act in _checkingAccounts where act.CustomerId == customerId select act); } } } The repository classes look very similar to each other for Query and Add methods, with the help of C# generics and implementing repository pattern (Martin Fowler) we can reduce the repeated code. Jarod from ElegantCode has posted an article on how to use repository pattern with EF which we will implement in the subsequent articles along with WCF Unity life time managers by Drew Contracts It is very easy to follow contract first approach with WCF, define the interface and append ServiceContract, OperationContract attributes. IProfile contract exposes functionality for creating customer and getting customer details. using System; using System.ServiceModel; using BankDAL.Model; namespace ProfileContract { [ServiceContract] public interface IProfile { [OperationContract] Customer CreateCustomer(string customerName, string address, DateTime dateOfBirth); [OperationContract] Customer GetCustomer(int id); } } ICheckingAccount contract exposes functionality for working with checking account, i.e., getting balance, deposit and withdraw of amount. ISavingsAccount contract looks the same as checking account. using System.ServiceModel; namespace CheckingAccountContract { [ServiceContract] public interface ICheckingAccount { [OperationContract] decimal? GetCheckingAccountBalance(int customerId); [OperationContract] void DepositAmount(int customerId,decimal amount); [OperationContract] void WithdrawAmount(int customerId, decimal amount); } } Services Having covered the data access layer and contracts so far and here comes the core of the business logic, i.e. services. .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } ProfileService implements the IProfile contract for creating customer and getting customer detail using CustomerRepository. using System; using System.Linq; using System.ServiceModel; using BankDAL; using BankDAL.Model; using BankDAL.Repositories; using ProfileContract; namespace ProfileService { [ServiceBehavior(IncludeExceptionDetailInFaults = true)] public class Profile: IProfile { public Customer CreateAccount( string customerName, string address, DateTime dateOfBirth) { Customer cust = new Customer { FullName = customerName, Address = address, DateOfBirth = dateOfBirth }; using (var bankDbContext = new BankDbContext()) { new CustomerRepository(bankDbContext).Add(cust); bankDbContext.SaveChanges(); } return cust; } public Customer CreateCustomer(string customerName, string address, DateTime dateOfBirth) { return CreateAccount(customerName, address, dateOfBirth); } public Customer GetCustomer(int id) { return new CustomerRepository(new BankDbContext()).Query() .Where(i => i.Id == id).FirstOrDefault(); } } } From the above code you shall observe that we are calling bankDBContext’s SaveChanges method and there is no save method specific to customer entity because EF manages all the changes centralized at the context level and all the pending changes so far are submitted in a batch and it is represented as Unit of Work. Similarly Checking service implements ICheckingAccount contract using CheckingAccountRepository, notice that we are throwing overdraft exception if the balance falls by zero. WCF has it’s own way of raising exceptions using fault contracts which will be explained in the subsequent articles. SavingsAccountService is similar to CheckingAccountService. using System; using System.Linq; using System.ServiceModel; using BankDAL.Model; using BankDAL.Repositories; using CheckingAccountContract; namespace CheckingAccountService { [ServiceBehavior(IncludeExceptionDetailInFaults = true)] public class Checking:ICheckingAccount { public decimal? GetCheckingAccountBalance(int customerId) { using (var bankDbContext = new BankDbContext()) { CheckingAccount account = (new CheckingAccountRepository(bankDbContext) .GetAccount(customerId)).FirstOrDefault(); if (account != null) return account.Balance; return null; } } public void DepositAmount(int customerId, decimal amount) { using(var bankDbContext = new BankDbContext()) { var checkingAccountRepository = new CheckingAccountRepository(bankDbContext); CheckingAccount account = (checkingAccountRepository.GetAccount(customerId)) .FirstOrDefault(); if (account == null) { account = new CheckingAccount() { CustomerId = customerId }; checkingAccountRepository.Add(account); } account.Balance = account.Balance + amount; if (account.Balance < 0) throw new ApplicationException("Overdraft not accepted"); bankDbContext.SaveChanges(); } } public void WithdrawAmount(int customerId, decimal amount) { DepositAmount(customerId, -1*amount); } } } BankServiceHost The host acts as a glue binding contracts with it’s services, exposing the endpoints. The services can be exposed either through the code or configuration file, configuration file is preferred as it allows run time changes to service behavior even after deployment. We have 3 services and for each of the service you need to define name (the class that implements the service with fully qualified namespace) and endpoint known as ABC, i.e. address, binding and contract. We are using netTcpBinding and have defined the base address with for each of the contracts .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } <system.serviceModel> <services> <service name="ProfileService.Profile"> <endpoint binding="netTcpBinding" contract="ProfileContract.IProfile"/> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:1000/Profile"/> </baseAddresses> </host> </service> <service name="CheckingAccountService.Checking"> <endpoint binding="netTcpBinding" contract="CheckingAccountContract.ICheckingAccount"/> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:1000/Checking"/> </baseAddresses> </host> </service> <service name="SavingsAccountService.Savings"> <endpoint binding="netTcpBinding" contract="SavingsAccountContract.ISavingsAccount"/> <host> <baseAddresses> <add baseAddress="net.tcp://localhost:1000/Savings"/> </baseAddresses> </host> </service> </services> </system.serviceModel> Have to open the services by creating service host which will handle the incoming requests from clients. using System; namespace ServiceHost { class Program { static void Main(string[] args) { CreateHosts(); Console.ReadLine(); } private static void CreateHosts() { CreateHost(typeof(ProfileService.Profile),"Profile Service"); CreateHost(typeof(SavingsAccountService.Savings), "Savings Account Service"); CreateHost(typeof(CheckingAccountService.Checking), "Checking Account Service"); } private static void CreateHost(Type type, string hostDescription) { System.ServiceModel.ServiceHost host = new System.ServiceModel.ServiceHost(type); host.Open(); if (host.ChannelDispatchers != null && host.ChannelDispatchers.Count != 0 && host.ChannelDispatchers[0].Listener != null) Console.WriteLine("Started: " + host.ChannelDispatchers[0].Listener.Uri); else Console.WriteLine("Failed to start:" + hostDescription); } } } BankClient The client has no knowledge about service business logic other than the functionality it exposes through the contract, end points and a proxy to work against. The endpoint data and server proxy can be generated by right clicking on the project reference and choosing ‘Add Service Reference’ and entering the service end point address. Or if you have access to source, you can manually reference contract dlls and update clients configuration file to point to the service end point if the server and client happens to be being built using .Net framework. One of the pros with the manual approach is you don’t have to work against messy code generated files. <system.serviceModel> <client> <endpoint name="tcpProfile" address="net.tcp://localhost:1000/Profile" binding="netTcpBinding" contract="ProfileContract.IProfile"/> <endpoint name="tcpCheckingAccount" address="net.tcp://localhost:1000/Checking" binding="netTcpBinding" contract="CheckingAccountContract.ICheckingAccount"/> <endpoint name="tcpSavingsAccount" address="net.tcp://localhost:1000/Savings" binding="netTcpBinding" contract="SavingsAccountContract.ISavingsAccount"/> </client> </system.serviceModel> The client uses a façade to connect to the services using System.ServiceModel; using CheckingAccountContract; using ProfileContract; using SavingsAccountContract; namespace Client { public class ProxyFacade { public static IProfile ProfileProxy() { return (new ChannelFactory<IProfile>("tcpProfile")).CreateChannel(); } public static ICheckingAccount CheckingAccountProxy() { return (new ChannelFactory<ICheckingAccount>("tcpCheckingAccount")) .CreateChannel(); } public static ISavingsAccount SavingsAccountProxy() { return (new ChannelFactory<ISavingsAccount>("tcpSavingsAccount")) .CreateChannel(); } } } With that in place, lets get our unit tests going using System; using System.Diagnostics; using BankDAL.Model; using NUnit.Framework; using ProfileContract; namespace Client { [TestFixture] public class Tests { private void TransferFundsFromSavingsToCheckingAccount(int customerId, decimal amount) { ProxyFacade.CheckingAccountProxy().DepositAmount(customerId, amount); ProxyFacade.SavingsAccountProxy().WithdrawAmount(customerId, amount); } private void TransferFundsFromCheckingToSavingsAccount(int customerId, decimal amount) { ProxyFacade.SavingsAccountProxy().DepositAmount(customerId, amount); ProxyFacade.CheckingAccountProxy().WithdrawAmount(customerId, amount); } [Test] public void CreateAndGetProfileTest() { IProfile profile = ProxyFacade.ProfileProxy(); const string customerName = "Tom"; int customerId = profile.CreateCustomer(customerName, "NJ", new DateTime(1982, 1, 1)).Id; Customer customer = profile.GetCustomer(customerId); Assert.AreEqual(customerName,customer.FullName); } [Test] public void DepositWithDrawAndTransferAmountTest() { IProfile profile = ProxyFacade.ProfileProxy(); string customerName = "Smith" + DateTime.Now.ToString("HH:mm:ss"); var customer = profile.CreateCustomer(customerName, "NJ", new DateTime(1982, 1, 1)); // Deposit to Savings ProxyFacade.SavingsAccountProxy().DepositAmount(customer.Id, 100); ProxyFacade.SavingsAccountProxy().DepositAmount(customer.Id, 25); Assert.AreEqual(125, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customer.Id)); // Withdraw ProxyFacade.SavingsAccountProxy().WithdrawAmount(customer.Id, 30); Assert.AreEqual(95, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customer.Id)); // Deposit to Checking ProxyFacade.CheckingAccountProxy().DepositAmount(customer.Id, 60); ProxyFacade.CheckingAccountProxy().DepositAmount(customer.Id, 40); Assert.AreEqual(100, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customer.Id)); // Withdraw ProxyFacade.CheckingAccountProxy().WithdrawAmount(customer.Id, 30); Assert.AreEqual(70, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customer.Id)); // Transfer from Savings to Checking TransferFundsFromSavingsToCheckingAccount(customer.Id,10); Assert.AreEqual(85, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customer.Id)); Assert.AreEqual(80, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customer.Id)); // Transfer from Checking to Savings TransferFundsFromCheckingToSavingsAccount(customer.Id, 50); Assert.AreEqual(135, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customer.Id)); Assert.AreEqual(30, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customer.Id)); } [Test] public void FundTransfersWithOverDraftTest() { IProfile profile = ProxyFacade.ProfileProxy(); string customerName = "Angelina" + DateTime.Now.ToString("HH:mm:ss"); var customerId = profile.CreateCustomer(customerName, "NJ", new DateTime(1972, 1, 1)).Id; ProxyFacade.SavingsAccountProxy().DepositAmount(customerId, 100); TransferFundsFromSavingsToCheckingAccount(customerId,80); Assert.AreEqual(20, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customerId)); Assert.AreEqual(80, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customerId)); try { TransferFundsFromSavingsToCheckingAccount(customerId,30); } catch (Exception e) { Debug.WriteLine(e.Message); } Assert.AreEqual(110, ProxyFacade.CheckingAccountProxy().GetCheckingAccountBalance(customerId)); Assert.AreEqual(20, ProxyFacade.SavingsAccountProxy().GetSavingsAccountBalance(customerId)); } } } We are creating a new instance of the channel for every operation, we will look into instance management and how creating a new instance of channel affects it in subsequent articles. The first two test cases deals with creation of Customer, deposit and withdraw of month between accounts. The last case, FundTransferWithOverDraftTest() is interesting. Customer starts with depositing $100 in SavingsAccount followed by transfer of $80 in to checking account resulting in $20 in savings account. Customer then initiates $30 transfer from Savings to Checking resulting in overdraft exception on Savings with $30 being deposited to Checking. As we are not running both the requests in transactions the customer ends up with more amount than what he started with $100. In subsequent posts we will look into transactions handling. Make sure the ServiceHost project is set as start up project and start the solution. Run the test cases either from NUnit client or TestDriven.Net/Resharper which ever is your favorite tool. Make sure you have updated the data base connection string in the ServiceHost config file to point to your local database

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Spring - PropertiesPlaceholderConfigurer not finding properties file

- by sat

Not sure what could be wrong. I had an app that worked all along with this <context:property-placeholder location="classpath:my.properties"/> No problems finding the properties file and hooking things up. Now, I needed to encrypt some fields in the properties file. So I ended up writing the custom PropertiesPlaceholderConfigurer and tried to wire it up like this <bean class="com.mycompany.myapp.PropertiesPlaceholderConfigurer"> <property name="location" value="classpath:my.propeties"/> </bean> With this configuration, Spring complains that it cannot find the properties file. java.io.FileNotFoundException: class path resource [my.propeties] cannot be opened because it does not exist What in addition should be done? The custom placeholder configurer package com.mycompany.myapp; import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer; import org.springframework.util.ObjectUtils; import java.util.Enumeration; import java.util.Properties; public class PropertiesPlaceholderConfigurer extends PropertyPlaceholderConfigurer{ @Override protected void convertProperties(Properties props) { Enumeration<?> propertyNames = props.propertyNames(); while (propertyNames.hasMoreElements()) { String propertyName = (String) propertyNames.nextElement(); String propertyValue = props.getProperty(propertyName); if(propertyName.endsWith("encrypted")){ System.out.println("Decrypting the property " + propertyName); String convertedValue = decrypt(propertyValue); System.out.println("Decrypted the property value to " + convertedValue); if (!ObjectUtils.nullSafeEquals(propertyValue, convertedValue)) { props.setProperty(propertyName, convertedValue); } } } } } Update: Forget my custom placeholder configurer, even the spring provided one has trouble if I replace with this <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:my.propeties"/> </bean> What is context:property-placholder doing that the bean definition can't? Full stack trace java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:99) at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:319) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103) Caused by: org.springframework.beans.factory.BeanInitializationException: Could not load properties; nested exception is java.io.FileNotFoundException: class path resource [my.propeties] cannot be opened because it does not exist at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:89) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:162) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:121) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:250) at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64) at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91) at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:319) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103) Caused by: java.io.FileNotFoundException: class path resource [my.propeties] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:158) at org.springframework.core.io.support.EncodedResource.getInputStream(EncodedResource.java:143) at org.springframework.core.io.support.PropertiesLoaderUtils.fillProperties(PropertiesLoaderUtils.java:98) at org.springframework.core.io.support.PropertiesLoaderSupport.loadProperties(PropertiesLoaderSupport.java:175) at org.springframework.core.io.support.PropertiesLoaderSupport.mergeProperties(PropertiesLoaderSupport.java:156) at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:80) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265) at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:162) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:609) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:121) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:100) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:250) at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContextInternal(CacheAwareContextLoaderDelegate.java:64) at org.springframework.test.context.CacheAwareContextLoaderDelegate.loadContext(CacheAwareContextLoaderDelegate.java:91) at org.springframework.test.context.DefaultTestContext.getApplicationContext(DefaultTestContext.java:101) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:109) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:319) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:212) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:309) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

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HttpClient POST fails to submit the form + resulting string is cut-off (incomplete)

- by Jayomat

Hi, I'm writing an app to check for the bus timetable's. Therefor I need to post some data to a html page, submit it, and parse the resulting page with htmlparser. Though it may be asked a lot, can some one help me identify if 1) this page does support post/get (I think it does) 2) which fields I need to use? 3) How to make the actual request? this is my code so far: String url = "http://busspur02.aseag.de/bs.exe?Cmd=RV&Karten=true&DatumT=30&DatumM=4&DatumJ=2010&ZeitH=&ZeitM=&Suchen=%28S%29uchen&GT0=&HT0=&GT1=&HT1="; String charset = "CP1252"; System.out.println("startFrom: "+start_from); System.out.println("goTo: "+destination); //String tag.v List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("HTO", start_from)); params.add(new BasicNameValuePair("HT1", destination)); params.add(new BasicNameValuePair("GTO", "Aachen")); params.add(new BasicNameValuePair("GT1", "Aachen")); params.add(new BasicNameValuePair("DatumT", day)); params.add(new BasicNameValuePair("DatumM", month)); params.add(new BasicNameValuePair("DatumJ", year)); params.add(new BasicNameValuePair("ZeitH", hour)); params.add(new BasicNameValuePair("ZeitM", min)); UrlEncodedFormEntity query = new UrlEncodedFormEntity(params, charset); HttpPost post = new HttpPost(url); post.setEntity(query); InputStream response = new DefaultHttpClient().execute(post).getEntity().getContent(); // Now do your thing with the facebook response. String source = readText(response,"CP1252"); Log.d(TAG_AVV,response.toString()); System.out.println("STREAM "+source); EDIT: This is my new code: try { HttpClient client = new DefaultHttpClient(); String getURL = "http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&Karten=true&DatumT="+day+"&DatumM="+month+"&DatumJ="+year+"&ZeitH="+hour+"&ZeitM="+min+"&Intervall=60&Suchen=(S)uchen&GT0=Aachen&T0=H&HT0="+start_from+"&GT1=Aachen&T0=H&HT1="+destination+""; HttpGet get = new HttpGet(getURL); HttpResponse responseGet = client.execute(get); HttpEntity resEntityGet = responseGet.getEntity(); if (resEntityGet != null) { //do something with the response Log.i("GET RESPONSE",EntityUtils.toString(resEntityGet)); } } catch (Exception e) { e.printStackTrace(); } But the output file is cut-off. If I do the same request in a browser I get like 14 different routes. Now the file suddenly stops and I only get 3 routes.... what's wrong? 04-30 12:19:12.362: INFO/GET RESPONSE(256):  04-30 12:19:12.362: INFO/GET RESPONSE(256): <div align="center"> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <p></p> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <p>Ihr Fahrplan fÃ¼r die Verbindung von Aachen, Kaiserplatz nach Aachen, Karlsgraben am Freitag, den 30.04.2010 (Koniginnedag), Abfahrten ab 12:19 Uhr</p> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <table class="Result"> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fussnote">Fussnote</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fahrzeug">Fahrzeug</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="abfahrt">Abfahrt</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="haltestellean">Haltestelle</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="linie">Linie</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="haltestelleab">Haltestelle</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="ankunft">Ankunft</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fahrzeit">Fahrzeit/Tarif</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td> </td><td> <img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:23</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz] <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>45</td><td title="lc0">Aachen, Karlsgraben <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:34</td><td>00:11 / Â 1,00</td><td> </td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=0&SID=5FC39">Fahrtbegleiter</a>  </td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><hr></td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td> </td><td> <img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:26</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz] <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>22</td><td title="lc0">Aachen, Karlsgraben <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:37</td><td>00:11 / Â 1,00</td><td> </td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=1&SID=5FC39">Fahrtbegleiter</a>  </td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><hr></td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td> </td><td> <img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:28</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz] <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>25</td><td title="lc0">Aachen, Karlsgraben <a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:39</td><td>00:11 / Â 1,00</td><td> </td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=2&SID=5FC39">Fahrtbegl

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TSQL Conditionally Select Specific Value

- by Dzejms

This is a follow-up to #1644748 where I successfully answered my own question, but Quassnoi helped me to realize that it was the wrong question. He gave me a solution that worked for my sample data, but I couldn't plug it back into the parent stored procedure because I fail at SQL 2005 syntax. So here is an attempt to paint the broader picture and ask what I actually need. This is part of a stored procedure that returns a list of items in a bug tracking application I've inherited. There are are over 100 fields and 26 joins so I'm pulling out only the mostly relevant bits. SELECT tickets.ticketid, tickets.tickettype, tickets_tickettype_lu.tickettypedesc, tickets.stage, tickets.position, tickets.sponsor, tickets.dev, tickets.qa, DATEDIFF(DAY, ticket_history_assignment.savedate, GETDATE()) as 'daysinqueue' FROM dbo.tickets WITH (NOLOCK) LEFT OUTER JOIN dbo.tickets_tickettype_lu WITH (NOLOCK) ON tickets.tickettype = tickets_tickettype_lu.tickettypeid LEFT OUTER JOIN dbo.tickets_history_assignment WITH (NOLOCK) ON tickets_history_assignment.ticketid = tickets.ticketid AND tickets_history_assignment.historyid = ( SELECT MAX(historyid) FROM dbo.tickets_history_assignment WITH (NOLOCK) WHERE tickets_history_assignment.ticketid = tickets.ticketid GROUP BY tickets_history_assignment.ticketid ) WHERE tickets.sponsor = @sponsor The area of interest is the daysinqueue subquery mess. The tickets_history_assignment table looks roughly as follows declare @tickets_history_assignment table ( historyid int, ticketid int, sponsor int, dev int, qa int, savedate datetime ) insert into @tickets_history_assignment values (1521402, 92774,20,14, 20, '2009-10-27 09:17:59.527') insert into @tickets_history_assignment values (1521399, 92774,20,14, 42, '2009-08-31 12:07:52.917') insert into @tickets_history_assignment values (1521311, 92774,100,14, 42, '2008-12-08 16:15:49.887') insert into @tickets_history_assignment values (1521336, 92774,100,14, 42, '2009-01-16 14:27:43.577') Whenever a ticket is saved, the current values for sponsor, dev and qa are stored in the tickets_history_assignment table with the ticketid and a timestamp. So it is possible for someone to change the value for qa, but leave sponsor alone. What I want to know, based on all of these conditions, is the historyid of the record in the tickets_history_assignment table where the sponsor value was last changed so that I can calculate the value for daysinqueue. If a record is inserted into the history table, and only the qa value has changed, I don't want that record. So simply relying on MAX(historyid) won't work for me. Quassnoi came up with the following which seemed to work with my sample data, but I can't plug it into the larger query, SQL Manager bitches about the WITH statement. ;WITH rows AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY ticketid ORDER BY savedate DESC) AS rn FROM @Table ) SELECT rl.sponsor, ro.savedate FROM rows rl CROSS APPLY ( SELECT TOP 1 rc.savedate FROM rows rc JOIN rows rn ON rn.ticketid = rc.ticketid AND rn.rn = rc.rn + 1 AND rn.sponsor <> rc.sponsor WHERE rc.ticketid = rl.ticketid ORDER BY rc.rn ) ro WHERE rl.rn = 1 I played with it yesterday afternoon and got nowhere because I don't fundamentally understand what is going on here and how it should fit into the larger context. So, any takers? UPDATE Ok, here's the whole thing. I've been switching some of the table and column names in an attempt to simplify things so here's the full unedited mess. snip - old bad code Here are the errors: Msg 102, Level 15, State 1, Procedure usp_GetProjectRecordsByAssignment, Line 159 Incorrect syntax near ';'. Msg 102, Level 15, State 1, Procedure usp_GetProjectRecordsByAssignment, Line 179 Incorrect syntax near ')'. Line numbers are of course not correct but refer to ;WITH rows AS And the ')' char after the WHERE rl.rn = 1 ) Respectively Is there a tag for extra super long question? UPDATE #2 Here is the finished query for anyone who may need this: CREATE PROCEDURE [dbo].[usp_GetProjectRecordsByAssignment] ( @assigned numeric(18,0), @assignedtype numeric(18,0) ) AS SET NOCOUNT ON WITH rows AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY recordid ORDER BY savedate DESC) AS rn FROM projects_history_assignment ) SELECT projects_records.recordid, projects_records.recordtype, projects_recordtype_lu.recordtypedesc, projects_records.stage, projects_stage_lu.stagedesc, projects_records.position, projects_position_lu.positiondesc, CASE projects_records.clientrequested WHEN '1' THEN 'Yes' WHEN '0' THEN 'No' END AS clientrequested, projects_records.reportingmethod, projects_reportingmethod_lu.reportingmethoddesc, projects_records.clientaccess, projects_clientaccess_lu.clientaccessdesc, projects_records.clientnumber, projects_records.project, projects_lu.projectdesc, projects_records.version, projects_version_lu.versiondesc, projects_records.projectedversion, projects_version_lu_projected.versiondesc AS projectedversiondesc, projects_records.sitetype, projects_sitetype_lu.sitetypedesc, projects_records.title, projects_records.module, projects_module_lu.moduledesc, projects_records.component, projects_component_lu.componentdesc, projects_records.loginusername, projects_records.loginpassword, projects_records.assistedusername, projects_records.browsername, projects_browsername_lu.browsernamedesc, projects_records.browserversion, projects_records.osname, projects_osname_lu.osnamedesc, projects_records.osversion, projects_records.errortype, projects_errortype_lu.errortypedesc, projects_records.gsipriority, projects_gsipriority_lu.gsiprioritydesc, projects_records.clientpriority, projects_clientpriority_lu.clientprioritydesc, projects_records.scheduledstartdate, projects_records.scheduledcompletiondate, projects_records.projectedhours, projects_records.actualstartdate, projects_records.actualcompletiondate, projects_records.actualhours, CASE projects_records.billclient WHEN '1' THEN 'Yes' WHEN '0' THEN 'No' END AS billclient, projects_records.billamount, projects_records.status, projects_status_lu.statusdesc, CASE CAST(projects_records.assigned AS VARCHAR(5)) WHEN '0' THEN 'N/A' WHEN '10000' THEN 'Unassigned' WHEN '20000' THEN 'Client' WHEN '30000' THEN 'Tech Support' WHEN '40000' THEN 'LMI Tech Support' WHEN '50000' THEN 'Upload' WHEN '60000' THEN 'Spider' WHEN '70000' THEN 'DB Admin' ELSE rtrim(users_assigned.nickname) + ' ' + rtrim(users_assigned.lastname) END AS assigned, CASE CAST(projects_records.assigneddev AS VARCHAR(5)) WHEN '0' THEN 'N/A' WHEN '10000' THEN 'Unassigned' ELSE rtrim(users_assigneddev.nickname) + ' ' + rtrim(users_assigneddev.lastname) END AS assigneddev, CASE CAST(projects_records.assignedqa AS VARCHAR(5)) WHEN '0' THEN 'N/A' WHEN '10000' THEN 'Unassigned' ELSE rtrim(users_assignedqa.nickname) + ' ' + rtrim(users_assignedqa.lastname) END AS assignedqa, CASE CAST(projects_records.assignedsponsor AS VARCHAR(5)) WHEN '0' THEN 'N/A' WHEN '10000' THEN 'Unassigned' ELSE rtrim(users_assignedsponsor.nickname) + ' ' + rtrim(users_assignedsponsor.lastname) END AS assignedsponsor, projects_records.clientcreated, CASE projects_records.clientcreated WHEN '1' THEN 'Yes' WHEN '0' THEN 'No' END AS clientcreateddesc, CASE projects_records.clientcreated WHEN '1' THEN rtrim(clientusers_createuser.firstname) + ' ' + rtrim(clientusers_createuser.lastname) + ' (Client)' ELSE rtrim(users_createuser.nickname) + ' ' + rtrim(users_createuser.lastname) END AS createuser, projects_records.createdate, projects_records.savedate, projects_resolution.sitesaffected, projects_sitesaffected_lu.sitesaffecteddesc, DATEDIFF(DAY, projects_history_assignment.savedate, GETDATE()) as 'daysinqueue', projects_records.iOnHitList, projects_records.changetype FROM dbo.projects_records WITH (NOLOCK) LEFT OUTER JOIN dbo.projects_recordtype_lu WITH (NOLOCK) ON projects_records.recordtype = projects_recordtype_lu.recordtypeid LEFT OUTER JOIN dbo.projects_stage_lu WITH (NOLOCK) ON projects_records.stage = projects_stage_lu.stageid LEFT OUTER JOIN dbo.projects_position_lu WITH (NOLOCK) ON projects_records.position = projects_position_lu.positionid LEFT OUTER JOIN dbo.projects_reportingmethod_lu WITH (NOLOCK) ON projects_records.reportingmethod = projects_reportingmethod_lu.reportingmethodid LEFT OUTER JOIN dbo.projects_lu WITH (NOLOCK) ON projects_records.project = projects_lu.projectid LEFT OUTER JOIN dbo.projects_version_lu WITH (NOLOCK) ON projects_records.version = projects_version_lu.versionid LEFT OUTER JOIN dbo.projects_version_lu projects_version_lu_projected WITH (NOLOCK) ON projects_records.projectedversion = projects_version_lu_projected.versionid LEFT OUTER JOIN dbo.projects_sitetype_lu WITH (NOLOCK) ON projects_records.sitetype = projects_sitetype_lu.sitetypeid LEFT OUTER JOIN dbo.projects_module_lu WITH (NOLOCK) ON projects_records.module = projects_module_lu.moduleid LEFT OUTER JOIN dbo.projects_component_lu WITH (NOLOCK) ON projects_records.component = projects_component_lu.componentid LEFT OUTER JOIN dbo.projects_browsername_lu WITH (NOLOCK) ON projects_records.browsername = projects_browsername_lu.browsernameid LEFT OUTER JOIN dbo.projects_osname_lu WITH (NOLOCK) ON projects_records.osname = projects_osname_lu.osnameid LEFT OUTER JOIN dbo.projects_errortype_lu WITH (NOLOCK) ON projects_records.errortype = projects_errortype_lu.errortypeid LEFT OUTER JOIN dbo.projects_resolution WITH (NOLOCK) ON projects_records.recordid = projects_resolution.recordid LEFT OUTER JOIN dbo.projects_sitesaffected_lu WITH (NOLOCK) ON projects_resolution.sitesaffected = projects_sitesaffected_lu.sitesaffectedid LEFT OUTER JOIN dbo.projects_gsipriority_lu WITH (NOLOCK) ON projects_records.gsipriority = projects_gsipriority_lu.gsipriorityid LEFT OUTER JOIN dbo.projects_clientpriority_lu WITH (NOLOCK) ON projects_records.clientpriority = projects_clientpriority_lu.clientpriorityid LEFT OUTER JOIN dbo.projects_status_lu WITH (NOLOCK) ON projects_records.status = projects_status_lu.statusid LEFT OUTER JOIN dbo.projects_clientaccess_lu WITH (NOLOCK) ON projects_records.clientaccess = projects_clientaccess_lu.clientaccessid LEFT OUTER JOIN dbo.users users_assigned WITH (NOLOCK) ON projects_records.assigned = users_assigned.userid LEFT OUTER JOIN dbo.users users_assigneddev WITH (NOLOCK) ON projects_records.assigneddev = users_assigneddev.userid LEFT OUTER JOIN dbo.users users_assignedqa WITH (NOLOCK) ON projects_records.assignedqa = users_assignedqa.userid LEFT OUTER JOIN dbo.users users_assignedsponsor WITH (NOLOCK) ON projects_records.assignedsponsor = users_assignedsponsor.userid LEFT OUTER JOIN dbo.users users_createuser WITH (NOLOCK) ON projects_records.createuser = users_createuser.userid LEFT OUTER JOIN dbo.clientusers clientusers_createuser WITH (NOLOCK) ON projects_records.createuser = clientusers_createuser.userid LEFT OUTER JOIN dbo.projects_history_assignment WITH (NOLOCK) ON projects_history_assignment.recordid = projects_records.recordid AND projects_history_assignment.historyid = ( SELECT ro.historyid FROM rows rl CROSS APPLY ( SELECT TOP 1 rc.historyid FROM rows rc JOIN rows rn ON rn.recordid = rc.recordid AND rn.rn = rc.rn + 1 AND rn.assigned <> rc.assigned WHERE rc.recordid = rl.recordid ORDER BY rc.rn ) ro WHERE rl.rn = 1 AND rl.recordid = projects_records.recordid ) WHERE (@assignedtype='0' and projects_records.assigned = @assigned) OR (@assignedtype='1' and projects_records.assigneddev = @assigned) OR (@assignedtype='2' and projects_records.assignedqa = @assigned) OR (@assignedtype='3' and projects_records.assignedsponsor = @assigned) OR (@assignedtype='4' and projects_records.createuser = @assigned)

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CodePlex Daily Summary for Sunday, August 10, 2014

CodePlex Daily Summary for Sunday, August 10, 2014Popular ReleasesWinForms MVP: WinForms MVP v1.0.1008.2014: Issues Fixed Issue 1 New Added MessageBus and AppState features. Added tests in support of the MessageBus and AppState features Added dependency injection support for Ninject. Added tests in support of the NinjectPresenterFactory.WP8 Native Access Webserver: Version alpha 0.5.3: Figured I should post a newer version. This build includes pretty broad registry browsing (especially if you can use the AllCapabilities version) and (in the AC version) also fairly broad file system access. It also includes the ability to download .REG files. There have been tons of bugfixes and performance improvements as well, plus a slightly better UI in both the app and the web interface. For more info, please read the forum post here: http://forum.xda-developers.com/showthread.php?t=23...ClosedXML - The easy way to OpenXML: ClosedXML 0.74.0: Many updates. See history.SEToolbox: SEToolbox 01.042.019 Release 1: Added RadioAntenna broadcast name to ship name detail. Added two additional columns for Asteroid material generation for Asteroid Fields. Added Mass and Block number columns to main display. Added Ellipsis to some columns on main display to reduce name confusion. Added correct SE version number in file when saving. Re-added in reattaching Motor when drag/dropping or importing ships (KeenSH have added RotorEntityId back in after removing it months ago). Added option to export and r...Instant Beautiful Browsing: IBB 14.3 Alpha: An alpha release of IBB. After 3 years of the last release this version is made from scratch, with tons of new features like: Make your own IBB aps. HTML 5. Better UI. Extreme Windows 8 resemblance. Photos. Store. Movement TONS of times smother compared to previous versions. Remember that this is AN ALPHA release, I hope I will have "IBB 14" finished by December. The documentation on how to create a new application for IBB will come next monthjQuery List DragSort: jQuery List DragSort 0.5.2: Fixed scrollContainer removing deprecated use of $.browser so should now work with latest version of jQuery. Added the ability to return false in dragEnd to revert sort order Project changes Added nuget package for dragsort https://www.nuget.org/packages/dragsort Converted repository from SVN to MercurialCRM 2013 One Click Navigation: CRM2013OneClickNavigation_1_0_0_4_managed.zip: Fixed some minor issues and added support for the following languages Spanish German French Italian Portuguese Russian Arabic Chinese Japanese Hindi Hebrew Korean Polish ThaiBraintree Client Library: Braintree 2.32.0: Allow credit card verification options to be passed outside of the nonce for PaymentMethod.create Allow billingaddress parameters and billingaddress_id to be passed outside of the nonce for PaymentMethod.create Add Subscriptions to paypal accounts Add PaymentMethod.update Add failonduplicatepaymentmethod option to PaymentMethod.create Add support for dispute webhooksThe Mario Kart 8 App: V1.0.2.1: First Codeplex release. WINDOWS INSTALLER ONLYAspose Java for Docx4j: Aspose.Words vs Docx4j - v 1.0: Release contain the Code Comparison for Features in Docx4j SDK and Aspose.Words What's New ?Following Examples: Accessing Document Properties Add Bookmarks Convert to Formats Delete Bookmarks Working with Comments Feedback and Suggestions Many more examples are available at Aspose Docs. Raise your queries and suggest more examples via Aspose Forums or via this social coding site.File System Security PowerShell Module: NTFSSecurity 2.4.1: Add-Access and Remove-Access now take multiple accoutsYourSqlDba: YourSqlDba 5.2.1.: This version improves alert message that comes a while after you install the script. First it says to get it from YourSqlDba.CodePlex.com If you don't want to update now, just-rerun the script from your installed version. To get actual version running just execute install.PrintVersionInfo. . You can go to source code / history and click on change set 72957 to see changes in the script.Manipulator: Manipulator: manipulatorXNB filetype plugin for Paint.NET: Paint.NET XNB plugin v0.4.0.0: CHANGELOG Reverted old incomplete changes. Updated library for compatibility with Paint .NET 4. Updated project to NET 4.5. Updated version to 0.4.0.0. INSTALLATION INSTRUCTIONS Extract the ZIP file to your Paint.NET\FileTypes folder.EdiFabric: Release 4.1: Changed MessageContextWix# (WixSharp) - managed interface for WiX: Release 1.0.0.0: Release 1.0.0.0 Custom UI Custom MSI Dialog Custom CLR Dialog External UIMath.NET Numerics: Math.NET Numerics v3.2.0: Linear Algebra: Vector.Map2 (map2 in F#), storage-optimized Linear Algebra: fix RemoveColumn/Row early index bound check (was not strict enough) Statistics: Entropy ~Jeff Mastry Interpolation: use Array.BinarySearch instead of local implementation ~Candy Chiu Resources: fix a corrupted exception message string Portable Build: support .Net 4.0 as well by using profile 328 instead of 344. .Net 3.5: F# extensions now support .Net 3.5 as well .Net 3.5: NuGet package now contains pro...Virto Commerce Enterprise Open Source eCommerce Platform (asp.net mvc): Virto Commerce 1.11: Virto Commerce Community Edition version 1.11. To install the SDK package, please refer to SDK getting started documentation To configure source code package, please refer to Source code getting started documentation This release includes many bug fixes and minor improvements. More details about this release can be found on our blog at http://blog.virtocommerce.com.BoxStarter: Boxstarter 2.4.80: Running the Setup.bat file will install Chocolatey if not present and then install the Boxstarter modules.ProjkyAddin ssms addin script shortcut ssmsaddin: projkyaddin source code and msi files.: projkyaddin source code and msi files.New ProjectsBolos: BolosBWQS - The BitWise Query Service: Generic object queries with a bitwise syntax.DocX Razor: A DocX scaffolding engine with Razor syntaxJQuery Simple Logger: Its a very simple jQuery extension for logging client side events. There are four levels of logging: Error, Warning, Info, Debug ???????: ???????QQ:2281595668，?????，????，????　　?????????????????????，??1998?7??????，??????????，?????????，?????????????，????????????????????????. ????????????????????，????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。???????，??????????????????????。????????，????????????，?????????: ???????????: ?????QQ:2281595668，?????，????，????。????????????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，????????????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、???????: ???????????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，????????????????: ????????????: ???????????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，???????: ??????QQ:2281595668，?????，????，????。??????????????????，????????。????????????????、???????。??????????????。?????????????????,??????,??????,??????,??????????????，????????: ??????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ???????????: ??????????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，????????????????: ??????QQ:2281595668，?????，????，????　　 ????????????????????，??1998?7??????，??????????，??????? ????????，?????????????， ???????????????????????. ???????????????????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，??????: ????????????: ??????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，????????????，????，??“??????”????????: ??????QQ:2281595668，?????，????，????。??????????????????????????，????????????!??????????????????????????????????????????、???????、????、??????、??????????。???????????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、???????: ???????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ??????????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“???????????: ?????QQ：2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、???????????????: ????????????: ???????????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，???????????????: ?????QQ：2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ?????QQ:2281595668，?????，????，????。?????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????，???????: ??????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????????: ?????QQ：2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;??????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????????: ???????????: ????????????: ????????????: ????????????: ????????????QQ:2281595668，?????，????，????　　???????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，????????????????????????: ?????????????: ???????QQ：2281595668，?????，????，????。???????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，??????????????: ??????QQ：2281595668，?????，????，????。???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????????: ?????QQ：2281595668，?????，????，????。??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，????????????????????????????????: ?????QQ:2281595668，?????，????，????。????????????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，????????????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、??????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，???????????????: ?????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ?????QQ：2281595668，?????，????，????。??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，?????????????????????????????????: ???????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，??????: ???????????: ?????QQ：2281595668，?????，????，????。??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，????????????????????????????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，??????: ?????QQ：2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;??????: ?????QQ:2281595668，?????，????，????。????????????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，?????????????????: ??????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ????????????: ?????????????QQ:2281595668，?????，????，????　　???????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????: ?????QQ:2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;??????: ?????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”?????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。???????，??????????????????????。????????，????????????，????????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，???????: ??????QQ:2281595668，?????，????，????。?????????????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，?????????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，??????: ?????QQ:2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、??????: ??????????: ?????QQ：2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,??????: ???????????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，??????: ?????QQ:2281595668，?????，????，????　　???????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????，????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? 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?????，????????????????，????????????。????，???????????，????，??“??????”???? ?????，???????????????: ??????????: ?????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”??????????: ??????QQ:2281595668，?????，????，????。???????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????????: ?????QQ：2281595668，?????，????，????。?????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”???? ?????，????????????????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????: ?????QQ：2281595668，?????，????，????。?????????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????，????????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ?????QQ:2281595668，?????，????，????　　??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、??????: ??????QQ:2281595668，?????，????，????　　???????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????，???????: ????????????: ?????????????: hhhtbjzjgh??????: ??????QQ：2281595668，?????，????，????。??????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????????: ?????QQ:2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、??????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，???????: ???????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? 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??。???????????，??????????，???????????，????2000?，??????????????: ?????QQ:2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;???????: ??????QQ:2281595668，?????，????，????。???????????????，?????????????????????，????????????????????????!??????????????????????????????????????????????、?????????、??????????: ????????????QQ:2281595668，?????，????，????　　???????????????，?????????????????????，????????????????????????!??????????????????????????????????????????????、?????????????: ???????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ?????QQ：2281595668，?????，????，????。?????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????，?????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，???????????????: ?????QQ:2281595668，?????，????，????　　??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，???????????????????????????????: tybjza?????: ?????QQ：2281595668，?????，????，????。?????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”???? ?????，????????????????: ??????QQ:2281595668，?????，????，????。　　??????????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，??????????????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,????????: ????????QQ:2281595668，?????，????，????　　?????????????????????????????,?????????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;??????: ?????QQ：2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;??????: ?????QQ：2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ：2281595668，?????，????，????。?????????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????，????????: ?????QQ：2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,??????: ????????????QQ:2281595668，?????，????，????　　???????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，???????????????????????: ?????QQ:2281595668，?????，????，????。?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????。??????????????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ?????QQ：2281595668，?????，????，????。??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，????????????????????????????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。???????，??????????????????????。????????，????????????，????????: ?????QQ：2281595668，?????，????，????。?????????，??????????????????。?????? 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??。???????????，??????????，???????????，????2000?，??????????，??????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ???????????: ????????????: ??????QQ：2281595668，?????，????，????。　　???????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，????????: ?????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,???????????????????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，??????????????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????????????: ???????QQ:2281595668，?????，????，????。?????????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????????: ???????????: ?????QQ:2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,??????: ??????????????: ????????QQ:2281595668，?????，????，????　　?????????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，?????????????????????????: ?????QQ：2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，??????: ?????QQ:2281595668，?????，????，????。????????????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，?????????????????: ????????????: ?????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ?????QQ:2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;???????: ????????????QQ:2281595668，?????，????，????　　???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;??????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、??????: ?????QQ:2281595668，?????，????，????。　　?????????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????，???????: ???????????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ?????QQ：2281595668，?????，????，????。?????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????，??????: ????????????: ???????????: ?????QQ:2281595668，?????，????，????。?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????。???????????????????: ??????QQ:2281595668，?????，????，????　　???????????????，?????????????????????，????????????????????????!??????????????????????????????????????????????、?????????、??????????: ???????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ?????????: ?????QQ:2281595668，?????，????，????　　???????????????????，????????????，??????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????，????????: ??????????: ?????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”?????????: ?????QQ：2281595668，?????，????，????。???????????????????，??1998?7??????，??????????，?????????，?????????????，??????????????????????. ????????????????????，???????????????: ?????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ?????，??????: ???????????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，???????: ????????????: ??????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ??????QQ:2281595668，?????，????，????。???????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，???????????????: ??????QQ:2281595668，?????，????，????　　????????????????????，??1998?7??????，??????????，?????????，?????????????，???????????????????????. ????????????????????，???????????: ?????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”?????????: ?????????????????: ??????????????????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，??????: ???????????: ?????QQ：2281595668，?????，????，????。?????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????，??????: ????????????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，????????????，????，??“????????: ?????QQ:2281595668，?????，????，????。?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????。??????????????????: ?????QQ：2281595668，?????，????，????。?????????，??????????????????。?????? ?????，????????????????，????????????。????，???????????，????，??“??????”???? ?????，???????????????: ?????QQ：2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,??????: ????????????: ??????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ??????????: ?????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ?????，?????: ?????QQ:2281595668，?????，????，????。??????????????，?????????????????????，???????????????????????!?????????????????????????????????????????????、?????????、??????、???????: ??????QQ:2281595668，?????，????，????　　???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????????: ??????QQ:2281595668，?????，????，????　　???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????????: ??????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，???????? ??????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、???????????????: ??????QQ:2281595668，?????，????，????。???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;?????????: ????????????: ???????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，?????: ?????QQ：2281595668，?????，????，????。?????????????????，????????。????????????????、???????。??????????????。????????????????,??????,??????,??????,??????????????，????,?????: ??????????: ????????????: ????????????: ??????????: ????? QQ:2281595668，?????，????，????。????? ?????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，???????????????: ??????QQ:2281595668，?????，????，????。????????????????????，??????????????，????，?????????????????????，??????。????????，??????????????????????。????????，????????????，??????: ??????QQ:2281595668，?????，????，????　　???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;???????: ?????QQ:2281595668，?????，????，????。?????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，???????????，??????: ??????QQ:2281595668，?????，????，????　　???????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????，??????: ?????QQ：2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，??????，???????: ??????QQ:2281595668，?????，????，????。????????????????????，??????????????，????，?????????????????????，??????。????????，??????????????????????。????????，????????????，????????: ????????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ????????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，??????????????，????，??“???????????: ???????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，??????: ????????????: ??????QQ：2281595668，?????，????，????。????????????????????，??1998?7??????，??????????，?????????，?????????????，???????????????????????. ????????????????????，?????????????: ???????????: ?????QQ:2281595668，?????，????，????　　??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，???????????????????????????????: ?????QQ：2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;???????: ????????????QQ:2281595668，?????，????，????　　????? ????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，??????????????: ??????QQ:2281595668，?????，????，????。??????????????????，????????。????????????????、???????。??????????????。?????????????????,??????,??????,??????,??????????????，????????: ????????????: ????????????QQ:2281595668，?????，????，????　　?????2004?，??????????????，??????????????????。?????? ?????，????????????????，????????????。????，????????????，????，??“????????: ???????????: ?????????????: ???????QQ:2281595668，?????，????，????。????????????????，?????????????????????，?????????????????????????!???????????????????????????????????????????????、?????????、??????: ??????QQ:2281595668，?????，????，????。???????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????????: ?????QQ:2281595668，?????，????，????。??????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，??????????，??????: ???????????: ?????QQ:2281595668，?????，????，????。???????????????????，??????????????，????，?????????????????????，??????。???????，??????????????????????。????????，????????????，?????????: ??????QQ:2281595668，?????，????，????。??????????????????????????，????????????!??????????????????????????????????????????、???????、????、??????、??????????。????????????????: ??????QQ:2281595668，?????，????，????。????????????????????，??????????????，????，?????????????????????，??????。????????，??????????????????????。????????，????????????，??????: ??????QQ:2281595668，?????，????，????。?????????????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，??????????????: ????????????: ???????????: ?????QQ:2281595668，?????，????，????。??????????????????????????,??????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????;???????: ????????????: ????????????: ??????QQ:2281595668，?????，????，????　　???????????????????，????????????，???????98???????????，????，??????????，?????????. 　　?????????,????????????????，???????????，???????: ??????QQ:2281595668，?????，????，????。???????????????，??????、????、?????????????????????????，???????????? ??。???????????，??????????，???????????，????2000?，???????????????: ??????QQ:2281595668，?????，????，????。???????????????，?????????????????????，????????????????????????!??????????????????????????????????????????????、?????????、?????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、??????????????: ?????QQ：2281595668，?????，????，????。??????????????，?????????????????????????，????????????!?????????????????????????????????????????、???????、????、??????、???????????????: ??????QQ:2281595668，?????，????，????。???????????????????????????,???????????,???????????????????????,???????:????,????;?????????????;??;??;????;????????;????;????????: ?????QQ:2281595668，?????，????，????　　????????????????????，????????。????????????????、???????。??????????????。???????????????????,??????,??????,??????,??????????????????: ?????QQ:2281595668，?????，????，????。　　?????????????、??、??、??????????????????，???????，???????，?????????????，??????????????，?????、??????????、??、???，?????????????，???????: ??????QQ:2281595668，?????，????，????。??????????????????!????????????????????????????????????????????、?????????、??????、????????、????????????。??????????，????????????????: ???????????: ?????QQ：2281595668，?????，????，????。　　??????98???????????，???????????????????，????????????，????，??????????，?????????，?????????,????????????????，???????????，??????????: ?????QQ：2281595668，?????，????，????。??????????1998?????????。????????????，???????????????，?????????????，???????????，?2003?????????????，?????????????????????????????????: ????????????: ????????????: ??????QQ:2281595668，?????，????，????。????????????????????，??????????????，????，?????????????????????，??????。??，??????????????????????。????????，????????????，????????????: ????????????: ???????????: ?????QQ：2281595668，?????，????，????。?????????，??????????????????。?????? 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PE Header Requirements

- by Pindatjuh

What are the requirements of a PE file (PE/COFF)? What fields should be set, which value, at a bare minimum for enabling it to "run" on Windows (i.e. executing "ret" instruction and then close, without error). The library I am building first is the linker: Now, the problem I have is the PE file (PE/COFF). I don't know what is "required" for a PE file before it can actually execute on my platform. My testing platform is Vista. I get an error message, saying "This is not a valid Win32 executable." when I execute it by double-clicking, and I get an "Access Denied." when executing it with CLI cmd. I have two sections, .text and .data. I've implemented the PE headers as provided by several online documents, i.e. MSDN and some other thirdparty documentation. If I use a hex-editor, it looks almost like a regular PE file. I don't use any imports, nor IAT, nor any directories in the PE header. Edit: I've added an import table, still not a valid .exe-file, says my Windows. I've tried to use values which are also mentioned at the smallest PE-file guide. No luck. Really the only thing I can't seem to figure out is what is required and what isn't. Some guides tell me everything is required, whilst others say about deprications: and it can be zero. I hope this is enough information. Thank you, in advance. Raw data (as requested) of current PE header: 4D 5A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 50 45 00 00 4C 01 02 00 C8 7A 55 4B 00 00 00 00 00 00 00 00 E0 00 82 01 0B 01 0D 25 00 10 00 00 00 10 00 00 00 00 00 00 00 10 00 00 00 10 00 00 00 20 00 00 00 00 40 00 00 10 00 00 00 02 00 00 01 00 0B 00 00 00 00 00 03 00 0A 00 00 00 00 00 00 22 00 00 38 01 00 00 00 00 00 00 03 00 00 00 00 40 00 00 00 40 00 00 00 40 00 00 00 40 00 00 00 00 00 00 0E 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 24 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 2E 74 65 78 74 00 00 00 00 00 00 00 00 10 00 00 00 02 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 00 00 60 2E 69 64 61 74 61 00 00 00 00 00 00 00 20 00 00 00 02 00 00 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3C 20 00 00 00 00 00 00 00 00 00 00 24 20 00 00 34 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4B 45 52 4E 45 4C 33 32 2E 64 6C 6C 00 00 00 00 01 00 00 80 00 00 00 00 01 00 00 80 00 00 00 00

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Implementing a robust async stream reader

- by Jon

I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a Stream in an event-based manner. The stream, in my scenario, is guaranteed to be a FileStream and there is also an associated StreamReader already present to leverage. The public interface of the class is this: public class MyStreamManager { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } Obviously this specific scenario has to do with a console's standard output, but that is a detail and does not play an important role. StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Since we are only handing off data from the stream to a consumer, and that consumer may well have inside knowledge about the size and/or format of these chunks, I want to call event subscribers exactly once for each chunk. Otherwise the abstraction breaks down and the subscribers have to buffer the incoming data and reconstruct the chunks themselves using said knowledge. This is much less convenient to the calling code, and detracts from the usefulness of my class. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream (thus preserving the chunks). private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer, all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Maintains the "chunkiness" of the data; this allows the calling code to use inside knowledge of the data without doing any extra work Is almost agnostic to the buffer size (it will work correctly with any size buffer irrespective of the data being read) The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this.

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asp.net grid view hyper link pass values to new window

- by srihari

hai guys here is my question please help me I have a gridview with hyperlink fields here my requirement is if I click on hyperlink of particular row I need to display that particular row values into other page in that page user will edit record values after that if he clicks on update button I need to update that record values and get back to previous home page. if iam clicking hyper link in first window new window should open with out any url tool bar and minimize close buttons like popup modular Ajax ModalPopUpExtender but iam un able to ge that that one please help me the fillowing code is defalut.aspx <head runat="server"> <title>PassGridviewRow values </title> <style type="text/css"> #gvrecords tr.rowHover:hover { background-color:Yellow; font-family:Arial; } </style> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView runat="server" ID="gvrecords" AutoGenerateColumns="false" HeaderStyle-BackColor="#7779AF" HeaderStyle-ForeColor="White" DataKeyNames="UserId" RowStyle-CssClass="rowHover"> <Columns> <asp:TemplateField HeaderText="Change Password" > <ItemTemplate> <a href ='<%#"UpdateGridviewvalues.aspx?UserId="+DataBinder.Eval(Container.DataItem,"UserId") %>'> <%#Eval("UserName") %> </a> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="FirstName" HeaderText="FirstName" /> <asp:BoundField DataField="LastName" HeaderText="LastName" /> <asp:BoundField DataField="Email" HeaderText="Email" /> </Columns> </asp:GridView> </div> </form> </body> </html> following code default.aspx.cs code using System; using System.Collections.Generic; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { BindGridview(); } } protected void BindGridview() { SqlConnection con = new SqlConnection("Data Source=.;Integrated Security=SSPI;Initial Catalog=testdb1"); con.Open(); SqlCommand cmd = new SqlCommand("select * from UserDetails", con); SqlDataAdapter da = new SqlDataAdapter(cmd); cmd.ExecuteNonQuery(); con.Close(); DataSet ds = new DataSet(); da.Fill(ds); gvrecords.DataSource = ds; gvrecords.DataBind(); } } this is updategridviewvalues.aspx <head runat="server"> <title>Update Gridview Row Values</title> <script type="text/javascript"> function Showalert(username) { alert(username + ' details updated successfully.'); if (alert) { window.location = 'Default.aspx'; } } </script> </head> <body> <form id="form1" runat="server"> <div> <table> <tr> <td colspan="2" align="center"> <b> Edit User Details</b> </td> </tr> <tr> <td> User Name: </td> <td> <asp:Label ID="lblUsername" runat="server"/> </td> </tr> <tr> <td> First Name: </td> <td> <asp:TextBox ID="txtfname" runat="server"></asp:TextBox> </td> </tr> <tr> <td> Last Name: </td> <td> <asp:TextBox ID="txtlname" runat="server"></asp:TextBox> </td> </tr> <tr> <td> Email: </td> <td> <asp:TextBox ID="txtemail" runat="server"></asp:TextBox> </td> </tr> <tr> <td> </td> <td> <asp:Button ID="btnUpdate" runat="server" Text="Update" onclick="btnUpdate_Click" /> <asp:Button ID="btnCancel" runat="server" Text="Cancel" onclick="btnCancel_Click"/> </td> </tr> </table> </div> </form> </body> </html> and my updategridviewvalues.aspx.cs code is follows using System; using System.Collections.Generic; using System.Data; using System.Data.SqlClient; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class UpdateGridviewvalues : System.Web.UI.Page { SqlConnection con = new SqlConnection("Data Source=.;Integrated Security=SSPI;Initial Catalog=testdb1"); private int userid=0; protected void Page_Load(object sender, EventArgs e) { userid = Convert.ToInt32(Request.QueryString["UserId"].ToString()); if(!IsPostBack) { BindControlvalues(); } } private void BindControlvalues() { con.Open(); SqlCommand cmd = new SqlCommand("select * from UserDetails where UserId=" + userid, con); SqlDataAdapter da = new SqlDataAdapter(cmd); cmd.ExecuteNonQuery(); con.Close(); DataSet ds = new DataSet(); da.Fill(ds); lblUsername.Text = ds.Tables[0].Rows[0][1].ToString(); txtfname.Text = ds.Tables[0].Rows[0][2].ToString(); txtlname.Text = ds.Tables[0].Rows[0][3].ToString(); txtemail.Text = ds.Tables[0].Rows[0][4].ToString(); } protected void btnUpdate_Click(object sender, EventArgs e) { con.Open(); SqlCommand cmd = new SqlCommand("update UserDetails set FirstName='" + txtfname.Text + "',LastName='" + txtlname.Text + "',Email='" + txtemail.Text + "' where UserId=" + userid, con); SqlDataAdapter da = new SqlDataAdapter(cmd); int result= cmd.ExecuteNonQuery(); con.Close(); if(result==1) { ScriptManager.RegisterStartupScript(this, this.GetType(), "ShowSuccess", "javascript:Showalert('"+lblUsername.Text+"')", true); } } protected void btnCancel_Click(object sender, EventArgs e) { Response.Redirect("~/Default.aspx"); } } My requirement is new window should come like pop window as new window with out having url and close button my database tables is ColumnName DataType ------------------------------------------- UserId Int(set identity property=true) UserName varchar(50) FirstName varchar(50) LastName varchar(50) Email Varchar(50)

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Wired component null in seam EntityHome action

- by rangalo

I have a custom EntityHome class. I wire the dependent entity in the wire method, but when I call the action (persist) the wired component is always null. What could be the reason, similar code generated by seam gen is apparently working. Here is the entity class. I have overrden persist method to log the value of the wired element. @Name("roundHome") @Scope(ScopeType.CONVERSATION) public class RoundHome extends EntityHome<Round>{ @In(required = false) private Golfer currentGolfer; @In(create = true) private TeeSetHome teeSetHome; @Override public String persist() { logger.info("Persist called"); if (null != getInstance().getTeeSet() ) { logger.info("teeSet not null in persist"); } else { logger.info("teeSet null in persist"); // wire(); } String retVal = super.persist(); //To change body of overridden methods use File | Settings | File Templates. return retVal; } @Logger private Log logger; public void wire() { logger.info("wire called"); TeeSet teeSet = teeSetHome.getDefinedInstance(); if (null != teeSet) { getInstance().setTeeSet(teeSet); logger.info("Successfully wired the teeSet instance with color: " + teeSet.getColor()); } } public boolean isWired() { logger.info("is wired called"); if(null == getInstance().getTeeSet()) { logger.info("wired teeSet instance is null, the button will be disabled !"); return false; } else { logger.info("wired teeSet instance is NOT null, the button will be enabled !"); logger.info("teeSet color: "+getInstance().getTeeSet().getColor()); return true; } } @RequestParameter public void setRoundId(Long id) { super.setId(id); } @Override protected Round createInstance() { Round round = super.createInstance(); round.setGolfer(currentGolfer); round.setDate(new java.sql.Date(System.currentTimeMillis())); return round; } } Here the xhtml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:s="http://jboss.com/products/seam/taglib" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:a="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" template="layout/template.xhtml"> <ui:define name="body"> <h:form id="roundform"> <rich:panel> <f:facet name="header>"> #{roundHome.managed ? 'Edit' : 'Add' } Round </f:facet> <s:decorate id="dateField" template="layout/edit.xhtml"> <ui:define name="label">Date:</ui:define> <rich:calendar id="date" datePattern="dd/MM/yyyy" value="#{round.date}"/> </s:decorate> <s:decorate id="notesField" template="layout/edit.xhtml"> <ui:define name="label">Notes:</ui:define> <h:inputTextarea id="notes" cols="80" rows="3" value="#{round.notes}" /> </s:decorate> <s:decorate id="totalScoreField" template="layout/edit.xhtml"> <ui:define name="label">Total Score:</ui:define> <h:inputText id="totalScore" value="#{round.totalScore}" /> </s:decorate> <s:decorate id="weatherField" template="layout/edit.xhtml"> <ui:define name="label">Weather:</ui:define> <h:selectOneMenu id="weather" value="#{round.weather}"> <s:selectItems var="_weather" value="#{weatherCategories}" label="#{_weather.label}" noSelectionLabel=" Select " /> <s:convertEnum/> </h:selectOneMenu> </s:decorate> <div style="clear: both;"> <span class="required">*</span> required fields </div> </rich:panel> <div class="actionButtons"> <h:commandButton id="save" value="Save" action="#{roundHome.persist}" rendered="#{!roundHome.managed}" />  <h:commandButton id="update" value="Update" action="#{roundHome.update}" rendered="#{roundHome.managed}" /> <h:commandButton id="delete" value="Delete" action="#{roundHome.remove}" rendered="#{roundHome.managed}" /> <s:button id="discard" value="Discard changes" propagation="end" view="/Round.xhtml" rendered="#{roundHome.managed}" /> <s:button id="cancel" value="Cancel" propagation="end" view="/#{empty roundFrom ? 'RoundList' : roundFrom}.xhtml" rendered="#{!roundHome.managed}" /> </div> <rich:tabPanel> <rich:tab label="Tee Set"> <div class="association"> <h:outputText value="Tee set not selected" rendered="#{round.teeSet == null}" /> <rich:dataTable var="_teeSet" value="#{round.teeSet}" rendered="#{round.teeSet != null}"> <h:column> <f:facet name="header">Course</f:facet>#{_teeSet.course.name} </h:column> <h:column> <f:facet name="header">Color</f:facet>#{_teeSet.color} </h:column> <h:column> <f:facet name="header">Position</f:facet>#{_teeSet.pos} </h:column> </rich:dataTable> </div> </rich:tab> </rich:tabPanel> </h:form> </ui:define> </ui:composition>

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I get java.lang.NullPointerException when trying to get the contents of the database in Android

- by ncountr

I am using 8 EditText boxes from the NewCard.xml from which i am taking the values and when the save button is pressed i am storing the values into a database, in the same process of saving i am trying to get the values and present them into 8 different TextView boxes on the main.xml file and when i press the button i get an FC from the emulator and the resulting error is java.lang.NullPointerException. If Some 1 could help me that would be great, since i have never used databases and this is my first application for android and this is the only thing keepeng me to complete the whole thing and publish it on the market like a free app. Here's the full code from NewCard.java. public class NewCard extends Activity { private static String[] FROM = { _ID, FIRST_NAME, LAST_NAME, POSITION, POSTAL_ADDRESS, PHONE_NUMBER, FAX_NUMBER, MAIL_ADDRESS, WEB_ADDRESS}; private static String ORDER_BY = FIRST_NAME; private CardsData cards; EditText First_Name; EditText Last_Name; EditText Position; EditText Postal_Address; EditText Phone_Number; EditText Fax_Number; EditText Mail_Address; EditText Web_Address; Button New_Cancel; Button New_Save; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.newcard); cards = new CardsData(this); //Define the Cancel Button in NewCard Activity New_Cancel = (Button) this.findViewById(R.id.new_cancel_button); //Define the Cancel Button Activity/s New_Cancel.setOnClickListener ( new OnClickListener() { public void onClick(View arg0) { NewCancelDialog(); } } );//End of the Cancel Button Activity/s //Define the Save Button in NewCard Activity New_Save = (Button) this.findViewById(R.id.new_save_button); //Define the EditText Fields to Get Their Values Into the Database First_Name = (EditText) this.findViewById(R.id.new_first_name); Last_Name = (EditText) this.findViewById(R.id.new_last_name); Position = (EditText) this.findViewById(R.id.new_position); Postal_Address = (EditText) this.findViewById(R.id.new_postal_address); Phone_Number = (EditText) this.findViewById(R.id.new_phone_number); Fax_Number = (EditText) this.findViewById(R.id.new_fax_number); Mail_Address = (EditText) this.findViewById(R.id.new_mail_address); Web_Address = (EditText) this.findViewById(R.id.new_web_address); //Define the Save Button Activity/s New_Save.setOnClickListener ( new OnClickListener() { public void onClick(View arg0) { //Add Code For Saving The Attributes Into The Database try { addCard(First_Name.getText().toString(), Last_Name.getText().toString(), Position.getText().toString(), Postal_Address.getText().toString(), Integer.parseInt(Phone_Number.getText().toString()), Integer.parseInt(Fax_Number.getText().toString()), Mail_Address.getText().toString(), Web_Address.getText().toString()); Cursor cursor = getCard(); showCard(cursor); } finally { cards.close(); NewCard.this.finish(); } } } );//End of the Save Button Activity/s } //======================================================================================// //DATABASE FUNCTIONS private void addCard(String firstname, String lastname, String position, String postaladdress, int phonenumber, int faxnumber, String mailaddress, String webaddress) { // Insert a new record into the Events data source. // You would do something similar for delete and update. SQLiteDatabase db = cards.getWritableDatabase(); ContentValues values = new ContentValues(); values.put(FIRST_NAME, firstname); values.put(LAST_NAME, lastname); values.put(POSITION, position); values.put(POSTAL_ADDRESS, postaladdress); values.put(PHONE_NUMBER, phonenumber); values.put(FAX_NUMBER, phonenumber); values.put(MAIL_ADDRESS, mailaddress); values.put(WEB_ADDRESS, webaddress); db.insertOrThrow(TABLE_NAME, null, values); } private Cursor getCard() { // Perform a managed query. The Activity will handle closing // and re-querying the cursor when needed. SQLiteDatabase db = cards.getReadableDatabase(); Cursor cursor = db.query(TABLE_NAME, FROM, null, null, null, null, ORDER_BY); startManagingCursor(cursor); return cursor; } private void showCard(Cursor cursor) { // Stuff them all into a big string long id = 0; String firstname = null; String lastname = null; String position = null; String postaladdress = null; long phonenumber = 0; long faxnumber = 0; String mailaddress = null; String webaddress = null; while (cursor.moveToNext()) { // Could use getColumnIndexOrThrow() to get indexes id = cursor.getLong(0); firstname = cursor.getString(1); lastname = cursor.getString(2); position = cursor.getString(3); postaladdress = cursor.getString(4); phonenumber = cursor.getLong(5); faxnumber = cursor.getLong(6); mailaddress = cursor.getString(7); webaddress = cursor.getString(8); } // Display on the screen add for each textView TextView ids = (TextView) findViewById(R.id.id); TextView fn = (TextView) findViewById(R.id.firstname); TextView ln = (TextView) findViewById(R.id.lastname); TextView pos = (TextView) findViewById(R.id.position); TextView pa = (TextView) findViewById(R.id.postaladdress); TextView pn = (TextView) findViewById(R.id.phonenumber); TextView fxn = (TextView) findViewById(R.id.faxnumber); TextView ma = (TextView) findViewById(R.id.mailaddress); TextView wa = (TextView) findViewById(R.id.webaddress); ids.setText(String.valueOf(id)); fn.setText(String.valueOf(firstname)); ln.setText(String.valueOf(lastname)); pos.setText(String.valueOf(position)); pa.setText(String.valueOf(postaladdress)); pn.setText(String.valueOf(phonenumber)); fxn.setText(String.valueOf(faxnumber)); ma.setText(String.valueOf(mailaddress)); wa.setText(String.valueOf(webaddress)); } //======================================================================================// //Define the Dialog that alerts you when you press the Cancel button private void NewCancelDialog() { new AlertDialog.Builder(this) .setMessage("Are you sure you want to cancel?") .setTitle("Cancel") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { NewCard.this.finish(); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }) .show(); }//End of the Cancel Dialog }

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Marshalling to a native library in C#

- by Daniel Baulig

I'm having trouble calling functions of a native library from within managed C# code. I am developing for the 3.5 compact framework (Windows Mobile 6.x) just in case this would make any difference. I am working with the waveIn* functions from coredll.dll (these are in winmm.dll in regular Windows I believe). This is what I came up with: // namespace winmm; class winmm [StructLayout(LayoutKind.Sequential)] public struct WAVEFORMAT { public ushort wFormatTag; public ushort nChannels; public uint nSamplesPerSec; public uint nAvgBytesPerSec; public ushort nBlockAlign; public ushort wBitsPerSample; public ushort cbSize; } [StructLayout(LayoutKind.Sequential)] public struct WAVEHDR { public IntPtr lpData; public uint dwBufferLength; public uint dwBytesRecorded; public IntPtr dwUser; public uint dwFlags; public uint dwLoops; public IntPtr lpNext; public IntPtr reserved; } public delegate void AudioRecordingDelegate(IntPtr deviceHandle, uint message, IntPtr instance, ref WAVEHDR wavehdr, IntPtr reserved2); [DllImport("coredll.dll")] public static extern int waveInAddBuffer(IntPtr hWaveIn, ref WAVEHDR lpWaveHdr, uint cWaveHdrSize); [DllImport("coredll.dll")] public static extern int waveInPrepareHeader(IntPtr hWaveIn, ref WAVEHDR lpWaveHdr, uint Size); [DllImport("coredll.dll")] public static extern int waveInStart(IntPtr hWaveIn); // some other class private WinMM.WinMM.AudioRecordingDelegate waveIn; private IntPtr handle; private uint bufferLength; private void setupBuffer() { byte[] buffer = new byte[bufferLength]; GCHandle bufferPin = GCHandle.Alloc(buffer, GCHandleType.Pinned); WinMM.WinMM.WAVEHDR hdr = new WinMM.WinMM.WAVEHDR(); hdr.lpData = bufferPin.AddrOfPinnedObject(); hdr.dwBufferLength = this.bufferLength; hdr.dwFlags = 0; int i = WinMM.WinMM.waveInPrepareHeader(this.handle, ref hdr, Convert.ToUInt32(Marshal.SizeOf(hdr))); if (i != WinMM.WinMM.MMSYSERR_NOERROR) { this.Text = "Error: waveInPrepare"; return; } i = WinMM.WinMM.waveInAddBuffer(this.handle, ref hdr, Convert.ToUInt32(Marshal.SizeOf(hdr))); if (i != WinMM.WinMM.MMSYSERR_NOERROR) { this.Text = "Error: waveInAddrBuffer"; return; } } private void setupWaveIn() { WinMM.WinMM.WAVEFORMAT format = new WinMM.WinMM.WAVEFORMAT(); format.wFormatTag = WinMM.WinMM.WAVE_FORMAT_PCM; format.nChannels = 1; format.nSamplesPerSec = 8000; format.wBitsPerSample = 8; format.nBlockAlign = Convert.ToUInt16(format.nChannels * format.wBitsPerSample); format.nAvgBytesPerSec = format.nSamplesPerSec * format.nBlockAlign; this.bufferLength = format.nAvgBytesPerSec; format.cbSize = 0; int i = WinMM.WinMM.waveInOpen(out this.handle, WinMM.WinMM.WAVE_MAPPER, ref format, Marshal.GetFunctionPointerForDelegate(waveIn), 0, WinMM.WinMM.CALLBACK_FUNCTION); if (i != WinMM.WinMM.MMSYSERR_NOERROR) { this.Text = "Error: waveInOpen"; return; } setupBuffer(); WinMM.WinMM.waveInStart(this.handle); } I read alot about marshalling the last few days, nevertheless I do not get this code working. When my callback function is called (waveIn) when the buffer is full, the hdr structure passed back in wavehdr is obviously corrupted. Here is an examlpe of how the structure looks like at that point: - wavehdr {WinMM.WinMM.WAVEHDR} WinMM.WinMM.WAVEHDR dwBufferLength 0x19904c00 uint dwBytesRecorded 0x0000fa00 uint dwFlags 0x00000003 uint dwLoops 0x1990f6a4 uint + dwUser 0x00000000 System.IntPtr + lpData 0x00000000 System.IntPtr + lpNext 0x00000000 System.IntPtr + reserved 0x7c07c9a0 System.IntPtr This obiously is not what I expected to get passed. I am clearly concerned about the order of the fields in the view. I do not know if Visual Studio .NET cares about actual memory order when displaying the record in the "local"-view, but they are obviously not displayed in the order I speciefied in the struct. Then theres no data pointer and the bufferLength field is far to high. Interestingly the bytesRecorded field is exactly 64000 - bufferLength and bytesRecorded I'd expect both to be 64000 though. I do not know what exactly is going wrong, maybe someone can help me out on this. I'm an absolute noob to managed code programming and marshalling so please don't be too harsh to me for all the stupid things I've propably done. Oh here's the C code definition for WAVEHDR which I found here, I believe I might have done something wrong in the C# struct definition: /* wave data block header */ typedef struct wavehdr_tag { LPSTR lpData; /* pointer to locked data buffer */ DWORD dwBufferLength; /* length of data buffer */ DWORD dwBytesRecorded; /* used for input only */ DWORD_PTR dwUser; /* for client's use */ DWORD dwFlags; /* assorted flags (see defines) */ DWORD dwLoops; /* loop control counter */ struct wavehdr_tag FAR *lpNext; /* reserved for driver */ DWORD_PTR reserved; /* reserved for driver */ } WAVEHDR, *PWAVEHDR, NEAR *NPWAVEHDR, FAR *LPWAVEHDR; If you are used to work with all those low level tools like pointer-arithmetic, casts, etc starting writing managed code is a pain in the ass. It's like trying to learn how to swim with your hands tied on your back. Some things I tried (to no effect): .NET compact framework does not seem to support the Pack = 2^x directive in [StructLayout]. I tried [StructLayout(LayoutKind.Explicit)] and used 4 bytes and 8 bytes alignment. 4 bytes alignmentgave me the same result as the above code and 8 bytes alignment only made things worse - but that's what I expected. Interestingly if I move the code from setupBuffer into the setupWaveIn and do not declare the GCHandle in the context of the class but in a local context of setupWaveIn the struct returned by the callback function does not seem to be corrupted. I am not sure however why this is the case and how I can use this knowledge to fix my code. I'd really appreciate any good links on marshalling, calling unmanaged code from C#, etc. Then I'd be very happy if someone could point out my mistakes. What am I doing wrong? Why do I not get what I'd expect.

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Problem with updating data in asp .NET MVC 2 application

- by Bojan

Hello everyone, i am just getting started with asp .NET MVC 2 applications and i stumbled upon a problem. I'm having trouble updating my tables. The debugger doesn't report any error, it just doesn't do anything... I hope some can help me out. Thank you for your time. This is my controller code... public ActionResult Edit(int id) { var supplierToEdit = (from c in _entities.SupplierSet where c.SupplierId == id select c).FirstOrDefault(); return View(supplierToEdit); } // // POST: /Supplier/Edit/5 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(Supplier supplierToEdit) { if (!ModelState.IsValid) return View(); try { var originalSupplier = (from c in _entities.SupplierSet where c.SupplierId == supplierToEdit.SupplierId select c).FirstOrDefault(); _entities.ApplyPropertyChanges(originalSupplier.EntityKey.EntitySetName, supplierToEdit); _entities.SaveChanges(); // TODO: Add update logic here return RedirectToAction("Index"); } catch { return View(); } } This is my View ... <h2>Edit</h2> <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <div class="editor-label"> <%= Html.LabelFor(model => model.CompanyName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.CompanyName) %> <%= Html.ValidationMessageFor(model => model.CompanyName) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.ContactName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.ContactName) %> <%= Html.ValidationMessageFor(model => model.ContactName) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.ContactTitle) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.ContactTitle) %> <%= Html.ValidationMessageFor(model => model.ContactTitle) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Address) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Address) %> <%= Html.ValidationMessageFor(model => model.Address) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.City) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.City) %> <%= Html.ValidationMessageFor(model => model.City) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.PostalCode) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.PostalCode) %> <%= Html.ValidationMessageFor(model => model.PostalCode) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Country) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Country) %> <%= Html.ValidationMessageFor(model => model.Country) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Telephone) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Telephone) %> <%= Html.ValidationMessageFor(model => model.Telephone) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.Fax) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.Fax) %> <%= Html.ValidationMessageFor(model => model.Fax) %> </div> <div class="editor-label"> <%= Html.LabelFor(model => model.HomePage) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(model => model.HomePage) %> <%= Html.ValidationMessageFor(model => model.HomePage) %> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } %> <div> <%= Html.ActionLink("Back to List", "Index") %> </div>

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Choose variable based on users choice from picklist.

- by Kelbizzle

I have this form. Basically what I want is to send a auto-response with a different URL based on what the user picks in the "attn" picklist. I've been thinking I could have a different variable for each drop down value. It will then pass this variable on to the mail script that will choose which URL to insert inside the auto response that is sent. It gives me a headache thinking about it sometimes. What's the easiest way to accomplish this? Am I making more work for myself? I really don't know because I'm no programmer. Thanks in advance! Here is the form: <form name="contact_form" method="post" action="sendemail_reports.php" onsubmit="return validate_form ( );"> <div id='zohoWebToLead' align=center> <table width="100%" border="0" align="center" cellpadding="0" cellspacing="0" class="txt_body"> <table border=0 cellspacing=0 cellpadding=5 width=480 style='border-bottom-color: #999999; border-top-color: #999999; border-bottom-style: none; border-top-style: none; border-bottom-width: 1px; border-top-width: 2px; background-color:transparent;'> <tr> <td width='75%'><table width=480 border=0 cellpadding=5 cellspacing=0 style='border-bottom-color: #999999; border-top-color: #999999; border-bottom-style: none; border-top-style: none; border-bottom-width: 1px; border-top-width: 2px; background-color:transparent;'> <input type="hidden" name="ip" value="'.$ipi.'" /> <input type="hidden" name="httpref" value="'.$httprefi.'" /> <input type="hidden" name="httpagent" value="'.$httpagenti.'" /> <tr></tr> <tr> <td colspan='2' align='left' style='border-bottom-color: #dadada; border-bottom-style: none; border-bottom-width: 2px; color:#000000; font-family:sans-serif; font-size:14px;'><strong>Send us an Email</strong></td> </tr> <tr> <td nowrap style='font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'> First Name : </td> <td width='75%'><input name='visitorf' type='text' size="48" maxlength='40' /></td> </tr> <tr> <td nowrap style='font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'>Last Name :</td> <td width='75%'><input name='visitorfl' type='text' size="48" maxlength='80' /></td> </tr> <tr> <td nowrap style= 'font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'> Email Adress : </td> <td width='75%'><input name='visitormail' type='text' size="48" maxlength='100' /></td> </tr> <tr> <td nowrap style='font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'> Phone : </td> <td width='75%'><input name='visitorphone' type='text' size="48" maxlength='30' /></td> </tr> <td nowrap style='font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'> Subject : </td> <td width='75%'><select name="attn" size="1"> <option value=" Investment Opportunities ">Investment Opportunities </option> <option value=" Vacation Rentals ">Vacation Rentals </option> <option value=" Real Estate Offerings ">Real Estate Offerings </option> <option value=" Gatherings ">Gatherings </option> <option value=" General ">General </option> </select></td> <tr> <td nowrap style= 'font-family:sans-serif;font-size:12px;font-weight:bold' align='right' width='25%'> Message :<br /> <em>(max 5000 char)</em></td> <td width='75%'><textarea name='notes' maxlength='5000' cols="48" rows="3"></textarea></td> </tr> <tr> <td colspan=2 align=center style=''><input name='save' type='submit' class="boton" value=Send mail />     <input type='reset' name='reset' value=Reset class="boton" /></td> </tr> </table></td> </tr> </table> </div> </form> Here is the mail script: <?php //the 3 variables below were changed to use the SERVER variable $ip = $_SERVER['REMOTE_ADDR']; $httpref = $_SERVER['HTTP_REFERER']; $httpagent = $_SERVER['HTTP_USER_AGENT']; $visitorf = $_POST['visitorf']; $visitorl = $_POST['visitorl']; $visitormail = $_POST['visitormail']; $visitorphone = $_POST['visitorphone']; $notes = $_POST['notes']; $attn = $_POST['attn']; //additional headers $headers = 'From: Me <[email protected]>' . "\n" ; $headers = 'Bcc: [email protected]' . "\n"; if (eregi('http:', $notes)) { die ("Do NOT try that! ! "); } if(!$visitormail == "" && (!strstr($visitormail,"@") || !strstr($visitormail,"."))) { echo "<h2>Use Back - Enter valid e-mail</h2>\n"; $badinput = "<h2>Feedback was NOT submitted</h2>\n"; echo $badinput; die ("Go back! ! "); } if(empty($visitorf) || empty($visitormail) || empty($notes )) { echo "<h2>Use Back - fill in all fields</h2>\n"; die ("Use back! ! "); } $todayis = date("l, F j, Y, g:i a") ; $subject = "I want to download the report about $attn"; $notes = stripcslashes($notes); $message = "$todayis [EST] \nAttention: $attn \nMessage: $notes \nFrom: $visitorf $visitorl ($visitormail) \nTelephone Number: $visitorphone \nAdditional Info : IP = $ip \nBrowser Info: $httpagent \nReferral : $httpref\n"; //check if the function even exists if(function_exists("mail")) { //send the email mail($_SESSION['email'], $subject, $message, $headers) or die("could not send email"); } else { die("mail function not enabled"); } header( "Location: http://www.domain.com/thanks.php" ); ?>

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Validating textboxes and checkboxes then add the values of those checkboxes

- by TiTi Nguyen

I am very new to Javascript. I am running to a problem and don't know how to solve it. Could you please help? Basically, I want to create some textboxes and checkboxes in a form. Then I have to validate those fields, and add the values of the checkboxes if they are selected. One of the textboxes asking for how many semesters attended, and 3 checkboxes with value of 100, 1000, and 750. Whichever checkbox is selected, it should multiply its value to the number of semesters attended. For example if the first two checkboxes are selected then totalCost = (100+1000)* semester. Here is my code: User Name: <label>User Address: <input type = "text" id ="address" size = "30"/></label> <br/><br/> <label> User E-mail address: <input type = "text" id ="email" size = "30"/></label> <br/><br/> <label> User Phone number: <input type = "text" id ="phone" size = "30"/></label> <br/><br/> <label> User area code: <input type = "text" id ="area" size = "30"/></label> <br/><br/> <label> User SSN: <input type = "text" id ="ssn" size = "30"/></label> <br/><br/> <label> User Birthday: <input type = "text" id ="birthday" size = "30"/></label> <br/><br/> <label> Number of semester attended: <input type = "text" id ="semester" size = "3"/></label> <br/><br/> <label><input type="checkbox" id="box_book" value="100"/>Books $100 per semester</label> <br/> <label><input type="checkbox" id="box_tuition" value="1000"/>Tuition $1000 per semester</label> <br/> <label><input type="checkbox" id="box_room" value="750"/>Room and Board $750 per semester</label> <br/> <input type="reset" id="reset"/> <input type="submit" id="submit" onclick="checking()"/> <p/> </form> function checking() { var name=document.forms["myForm"]["name"].value; var address=document.forms["myForm"]["address"].value; var email=document.forms["myForm"]["email"].value; var atpos=email.indexOf("@"); var dotpos=email.lastIndexOf("."); var phone=document.forms["myForm"]["phone"].value; var area=document.forms["myForm"]["area"].value; var ssn=document.forms["myForm"]["ssn"].value; var birth=document.forms["myForm"]["birthday"].value; var semester=document.forms["myForm"]["semester"].value; var boxBook = document.forms["myForm"]["box_book"].value; var boxTuition = document.forms["myForm"]["box_tuition"].value; var boxRoom = document.forms["myForm"]["box_room"].value; if (name==null || name=="") { alert("Please fill in your name."); return false; } if (address==null || address=="") { alert("Please fill in your address."); return false; } if (atpos<1 || dotpos<atpos+2 || dotpos+2>=email.length) { alert("The email (" + email + ") is not a valid e-mail address. Please reenter your email address."); return false; } if(phone.length!=10) { alert("Phone number entered in incorrect form. Please reenter phone number in the correct form which contains 10 numbers."); return false; } if (area==null || area=="") { alert("Please fill in the area code"); return false; } if(ssn.length!=9) { alert("SSN entered in incorrect form. Please reenter SSN."); return false; } if (birth==null || birth=="") { alert("Please fill in your date of birth."); return false; } if (semester==null || semester=="") { alert("How many semester have you attended?"); return false; } if (document.getElementById("box_book").checked == false && document.getElementById("box_tuition").checked == false && document.getElementById("box_room").checked == false) { alert("You must select one of the checkboxes"); return false; } if (document.getElementById("box_book").checked ==true) { var subcost = boxBook; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_book").checked == true && document.getElementById("box_tuition").checked == true) { var subcost = boxBook + boxTuition; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_book").checked == true && document.getElementById("box_tuition").checked == true && document.getElementById("box_room").checked == true) { var subcost = boxBook + boxTuition + boxRoom; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_tuition").checked ==true) { var subcost = boxTuition; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_tuition").checked == true && document.getElementById("box_room").checked == true) { var subcost = boxTuition + boxRoom; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_room").checked ==true) { var subcost = boxRoom; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } if (document.getElementById("box_book").checked == true && document.getElementById("box_room").checked == true) { var subcost = boxBook + boxRoom; var totalcost = subcost * semester; alert ("Your total cost is: $" + totalcost); } else return false; } When I hit the submit button, nothing happens!! Please help.

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How to retrive message list from p2p

- by cre-johnny07

Hello friends I have a messaging system that uses p2p. Each peer has a incoming message list and a outgoing message list. What I need to do is whenever a new peer will join the mesh he will get the all the incoming messages from other peers and add those into it's own incoming message list. Now I know when I get the other peer info from I can ask them to give their own list to me. But I'm not finding the way how..? Any suggestion on this or help would be highly appreciated. I'm giving my code below. Thanking in Advance Johnny #region Instance Fields private string strOrigin = ""; //the chat member name private string m_Member; //the channel instance where we execute our service methods against private IServerChannel m_participant; //the instance context which in this case is our window since it is the service host private InstanceContext m_site; //our binding transport for the p2p mesh private NetPeerTcpBinding m_binding; //the factory to create our chat channel private ChannelFactory<IServerChannel> m_channelFactory; //an interface provided by the channel exposing events to indicate //when we have connected or disconnected from the mesh private IOnlineStatus o_statusHandler; //a generic delegate to execute a thread against that accepts no args private delegate void NoArgDelegate(); //an object to hold user details private IUserService userService; //an Observable Collection of object to get all the Application Instance Details in databas ObservableCollection<AppLoginInstance> appLoginInstances; // an Observable Collection of object to get all Incoming Messages types ObservableCollection<MessageType> inComingMessageTypes; // an Observable Collection of object to get all Outgoing Messages ObservableCollection<PDCL.ERP.DataModels.Message> outGoingMessages; // an Observable Collection of object to get all Incoming Messages ObservableCollection<PDCL.ERP.DataModels.Message> inComingMessages; //an Event Aggregator to publish event for other modules to subscribe private readonly IEventAggregator eventAggregator; /// <summary> /// an IUnityCOntainer to get the container /// </summary> private IUnityContainer container; private RefreshConnectionStatus refreshConnectionStatus; private RefreshConnectionStatusEventArgs args; private ReplyRequestMessage replyMessageRequest; private ReplyRequestMessageEventArgs eventsArgs; #endregion public P2pMessageService(IUserService UserService, IEventAggregator EventAggregator, IUnityContainer container) { userService = UserService; this.container = container; appLoginInstances = new ObservableCollection<AppLoginInstance>(); inComingMessageTypes = new ObservableCollection<MessageType>(); inComingMessages = new ObservableCollection<PDCL.ERP.DataModels.Message>(); outGoingMessages = new ObservableCollection<PDCL.ERP.DataModels.Message>(); this.args = new RefreshConnectionStatusEventArgs(); this.eventsArgs = new ReplyRequestMessageEventArgs(); this.eventAggregator = EventAggregator; this.refreshConnectionStatus = this.eventAggregator.GetEvent<RefreshConnectionStatus>(); this.replyMessageRequest = this.eventAggregator.GetEvent<ReplyRequestMessage>(); } #region IOnlineStatus Event Handlers void ostat_Offline(object sender, EventArgs e) { // we could update a status bar or animate an icon to //indicate to the user they have disconnected from the mesh //currently i don't have a "disconnect" button but adding it //should be trivial if you understand the rest of this code } void ostat_Online(object sender, EventArgs e) { try { m_participant.Join(userService.AppInstance); } catch (Exception Ex) { Logger.Exception(Ex, Ex.TargetSite.Name + ": " + Ex.TargetSite + ": " + Ex.Message); } } #endregion #region IServer Members //this method gets called from a background thread to //connect the service client to the p2p mesh specified //by the binding info in the app.config public void ConnectToMesh() { try { m_site = new InstanceContext(this); //use the binding from the app.config with default settings m_binding = new NetPeerTcpBinding("P2PMessageBinding"); m_channelFactory = new DuplexChannelFactory<IServerChannel>(m_site, "P2PMessageEndPoint"); m_participant = m_channelFactory.CreateChannel(); o_statusHandler = m_participant.GetProperty<IOnlineStatus>(); o_statusHandler.Online += new EventHandler(ostat_Online); o_statusHandler.Offline += new EventHandler(ostat_Offline); //m_participant.InitializeMesh(); //this.appLoginInstances.Add(this.userService.AppInstance); BackgroundWorkerHelper.DoWork<object>(() => { //this is an empty unhandled method on the service interface. //why? because for some reason p2p clients don't try to connect to the mesh //until the first service method call. so to facilitate connecting i call this method //to get the ball rolling. m_participant.InitializeMesh(); //SynchronizeMessage(this.inComingMessages); return new object(); }, arg => { }); this.appLoginInstances.Add(this.userService.AppInstance); } catch (Exception Ex) { Logger.Exception(Ex, Ex.TargetSite.Name + ": " + Ex.TargetSite + ": " + Ex.Message); } } public void Join(AppLoginInstance obj) { try { // Adding Instance to the PeerList if (appLoginInstances.SingleOrDefault(a => a.InstanceId == obj.InstanceId)==null) { appLoginInstances.Add(obj); this.refreshConnectionStatus.Publish(new RefreshConnectionStatusEventArgs() { Status = m_channelFactory.State }); } //this will retrieve any new members that have joined before the current user m_participant.SynchronizeMemberList(userService.AppInstance); } catch(Exception Ex) { Logger.Exception(Ex,Ex.TargetSite.Name + ": " + Ex.TargetSite + ": " + Ex.Message); } } /// <summary> /// Synchronizes member list /// </summary> /// <param name="obj">The AppLoginInstance Param</param> public void SynchronizeMemberList(AppLoginInstance obj) { //as member names come in we simply disregard duplicates and //add them to the member list, this way we can retrieve a list //of members already in the chatroom when we enter at any time. //again, since this is just an example this is the simplified //way to do things. the correct way would be to retrieve a list //of peernames and retrieve the metadata from each one which would //tell us what the member name is and add it. we would want to check //this list when we join the mesh to make sure our member name doesn't //conflict with someone else try { if (appLoginInstances.SingleOrDefault(a => a.InstanceId == obj.InstanceId) == null) { appLoginInstances.Add(obj); } } catch (Exception Ex) { Logger.Exception(Ex, Ex.TargetSite.Name + ": " + Ex.TargetSite + ": " + Ex.Message); } } /// <summary> /// This methos broadcasts the mesasge to all peers. /// </summary> /// <param name="msg">The whole message which is to be broadcasted</param> /// <param name="securityLevels"> Level of security</param> public void BroadCastMsg(PDCL.ERP.DataModels.Message msg, List<string> securityLevels) { try { foreach (string s in securityLevels) { if (this.userService.IsInRole(s)) { if (this.inComingMessages.Count == 0 && msg.CreatedByApp != this.userService.AppInstanceId) { this.inComingMessages.Add(msg); } else if (this.inComingMessages.SingleOrDefault(a => a.MessageId == msg.MessageId) == null && msg.CreatedByApp != this.userService.AppInstanceId) { this.inComingMessages.Add(msg); } } } } catch (Exception Ex) { Logger.Exception(Ex, Ex.TargetSite.Name + ": " + Ex.TargetSite + ": " + Ex.Message); } } /// <summary> /// /// </summary> /// <param name="msg">The Message to denyed</param> public void BroadCastReplyMsg(PDCL.ERP.DataModels.Message msg) { try { //if (this.inComingMessages.SingleOrDefault(a => a.MessageId == msg.MessageId) != null) //{ this.replyMessageRequest.Publish(new ReplyRequestMessageEventArgs() { Message = msg }); this.inComingMessages.Remove(this.inComingMessages.SingleOrDefault(o => o.MessageId == msg.MessageId)); //} } catch (Exception ex) { Logger.Exception(ex, ex.TargetSite.Name + ": " + ex.TargetSite + ": " + ex.Message); } } //again we need to sync the worker thread with the UI thread via Dispatcher public void Whisper(string Member, string MemberTo, string Message) { } public void InitializeMesh() { //do nothing } public void Leave(AppLoginInstance obj) { if (this.appLoginInstances.SingleOrDefault(a => a.InstanceId == obj.InstanceId) != null) { this.appLoginInstances.Remove(this.appLoginInstances.Single(a => a.InstanceId == obj.InstanceId)); } } //public void SynchronizeRemoveMemberList(AppLoginInstance obj) //{ // if (appLoginInstances.SingleOrDefault(a => a.InstanceId == obj.InstanceId) != null) // { // appLoginInstances.Remove(obj); // } //} #endregion

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Implementing a robust async stream reader for a console

- by Jon

I recently provided an answer to this question: C# - Realtime console output redirection. As often happens, explaining stuff (here "stuff" was how I tackled a similar problem) leads you to greater understanding and/or, as is the case here, "oops" moments. I realized that my solution, as implemented, has a bug. The bug has little practical importance, but it has an extremely large importance to me as a developer: I can't rest easy knowing that my code has the potential to blow up. Squashing the bug is the purpose of this question. I apologize for the long intro, so let's get dirty. I wanted to build a class that allows me to receive input from a Stream in an event-based manner. The stream, in my scenario, is guaranteed to be a FileStream and there is also an associated StreamReader already present to leverage. The public interface of the class is this: public class MyStreamManager { public event EventHandler<ConsoleOutputReadEventArgs> StandardOutputRead; public void StartSendingEvents(); public void StopSendingEvents(); } Obviously this specific scenario has to do with a console's standard output. StartSendingEvents and StopSendingEvents do what they advertise; for the purposes of this discussion, we can assume that events are always being sent without loss of generality. The class uses these two fields internally: protected readonly StringBuilder inputAccumulator = new StringBuilder(); protected readonly byte[] buffer = new byte[256]; The functionality of the class is implemented in the methods below. To get the ball rolling: public void StartSendingEvents(); { this.stopAutomation = false; this.BeginReadAsync(); } To read data out of the Stream without blocking, and also without requiring a carriage return char, BeginRead is called: protected void BeginReadAsync() { if (!this.stopAutomation) { this.StandardOutput.BaseStream.BeginRead( this.buffer, 0, this.buffer.Length, this.ReadHappened, null); } } The challenging part: BeginRead requires using a buffer. This means that when reading from the stream, it is possible that the bytes available to read ("incoming chunk") are larger than the buffer. Since we are only handing off data from the stream to a consumer, and that consumer may well have inside knowledge about the size and/or format of these chunks, I want to call event subscribers exactly once for each chunk. Otherwise the abstraction breaks down and the subscribers have to buffer the incoming data and reconstruct the chunks themselves using said knowledge. This is much less convenient to the calling code, and detracts from the usefulness of my class. Edit: There are comments below correctly stating that since the data is coming from a stream, there is absolutely nothing that the receiver can infer about the structure of the data unless it is fully prepared to parse it. What I am trying to do here is leverage the "flush the output" "structure" that the owner of the console imparts while writing on it. I am prepared to assume (better: allow my caller to have the option to assume) that the OS will pass me the data written between two flushes of the stream in exactly one piece. To this end, if the buffer is full after EndRead, we don't send its contents to subscribers immediately but instead append them to a StringBuilder. The contents of the StringBuilder are only sent back whenever there is no more to read from the stream (thus preserving the chunks). private void ReadHappened(IAsyncResult asyncResult) { var bytesRead = this.StandardOutput.BaseStream.EndRead(asyncResult); if (bytesRead == 0) { this.OnAutomationStopped(); return; } var input = this.StandardOutput.CurrentEncoding.GetString( this.buffer, 0, bytesRead); this.inputAccumulator.Append(input); if (bytesRead < this.buffer.Length) { this.OnInputRead(); // only send back if we 're sure we got it all } this.BeginReadAsync(); // continue "looping" with BeginRead } After any read which is not enough to fill the buffer, all accumulated data is sent to the subscribers: private void OnInputRead() { var handler = this.StandardOutputRead; if (handler == null) { return; } handler(this, new ConsoleOutputReadEventArgs(this.inputAccumulator.ToString())); this.inputAccumulator.Clear(); } (I know that as long as there are no subscribers the data gets accumulated forever. This is a deliberate decision). The good This scheme works almost perfectly: Async functionality without spawning any threads Very convenient to the calling code (just subscribe to an event) Maintains the "chunkiness" of the data; this allows the calling code to use inside knowledge of the data without doing any extra work Is almost agnostic to the buffer size (it will work correctly with any size buffer irrespective of the data being read) The bad That last almost is a very big one. Consider what happens when there is an incoming chunk with length exactly equal to the size of the buffer. The chunk will be read and buffered, but the event will not be triggered. This will be followed up by a BeginRead that expects to find more data belonging to the current chunk in order to send it back all in one piece, but... there will be no more data in the stream. In fact, as long as data is put into the stream in chunks with length exactly equal to the buffer size, the data will be buffered and the event will never be triggered. This scenario may be highly unlikely to occur in practice, especially since we can pick any number for the buffer size, but the problem is there. Solution? Unfortunately, after checking the available methods on FileStream and StreamReader, I can't find anything which lets me peek into the stream while also allowing async methods to be used on it. One "solution" would be to have a thread wait on a ManualResetEvent after the "buffer filled" condition is detected. If the event is not signaled (by the async callback) in a small amount of time, then more data from the stream will not be forthcoming and the data accumulated so far should be sent to subscribers. However, this introduces the need for another thread, requires thread synchronization, and is plain inelegant. Specifying a timeout for BeginRead would also suffice (call back into my code every now and then so I can check if there's data to be sent back; most of the time there will not be anything to do, so I expect the performance hit to be negligible). But it looks like timeouts are not supported in FileStream. Since I imagine that async calls with timeouts are an option in bare Win32, another approach might be to PInvoke the hell out of the problem. But this is also undesirable as it will introduce complexity and simply be a pain to code. Is there an elegant way to get around the problem? Thanks for being patient enough to read all of this.

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