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  • Autocomplete extender problems on user control

    - by RUtt
    I'm having trouble getting autocompleteextender (from ajaxcontroltoolkit) to fire when it is on a user control (it works fine when everything is on an aspx page. In my case I'm using a master page as well as a user control. Here's what I have. On the masterpage (path: masterpages/MasterPage.master) <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" EnablePageMethods="true"> </asp:ToolkitScriptManager> On the user control (path: controls/sitenavigation/usercontrol.ascx) <asp:TextBox id="txtSearchInput" Runat="server" CssClass="searchinput" Columns="95" MaxLength="95"></asp:TextBox> <asp:AutoCompleteExtender ID="txtSearchInput_AutoCompleteExtender" runat="server" DelimiterCharacters="" Enabled="True" ServiceMethod="GetSuggestions" ServicePath="~/App_Code/WebService.asmx" TargetControlID="txtSearchInput" UseContextKey="False" MinimumPrefixLength="2"> </asp:AutoCompleteExtender> On the Webservice (path: App_Code/WebService.cs) [System.Web.Script.Services.ScriptService] public class WebService : System.Web.Services.WebService { .... [WebMethod] public string[] GetSuggestions(string prefixText, int count, string contextKey) { //my code to return string[] } It seems that my problem is with my ServicePath in the extender but I just can't seem to figure out what it should be, any help would be great. Thanks.

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  • asp:RadioButtonList doesn't set correct selected item on load

    - by Nir
    I have this code: <asp:RadioButtonList ID="rblExpDate" runat="server" > <asp:ListItem Selected="True" Text="No expiration date"></asp:ListItem> <asp:ListItem Text="Expires on:"></asp:ListItem> </asp:RadioButtonList> that I would like to be always, on page load, to mark the first option ("no expiration date"). However, if the user marks the second option and reloads, the second option is selected, even though I do this on page load: rblExpDate.Items[0].Selected = true; rblExpDate.SelectedIndex = 0; Appreciate your help!

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  • how to group by over anonymous type with vb.net linq to object

    - by smoothdeveloper
    I'm trying to write a linq to object query in vb.net, here is the c# version of what I'm trying to achieve (I'm running this in linqpad): void Main() { var items = GetArray( new {a="a",b="a",c=1} , new {a="a",b="a",c=2} , new {a="a",b="b",c=1} ); ( from i in items group i by new {i.a, i.b} into g let p = new{ k = g, v = g.Sum((i)=>i.c)} where p.v > 1 select p ).Dump(); } // because vb.net doesn't support anonymous type array initializer, it will ease the translation T[] GetArray<T>(params T[] values){ return values; } I'm having hard time with either the group by syntax which is not the same (vb require 'identifier = expression' at some places, as well as with the summing functor with 'expression required' ) Thanks so much for your help!

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  • Wpf: Performance Issue

    - by viky
    I am working on a wpf application. In which I am working with a TreeView, each node represents different datatypes, these datatypes are having properties defined and using data template to show their properties. My application reads from xml and create tree accordingly. My problem is that when I load it, it is too slow, I want to know about the tricks that will help me to improve performance of my(any) wpf application.

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  • ASP.NET MVC 2: How do I make the Ajax.Form to fire the Client Side Validation with Data Annotation?

    - by Methee
    Here is the code I have so far: <% Html.EnableClientValidation(); %> <% using (Ajax.BeginForm("Address", "Accounts", FormMethod.Post, new AjaxOptions(){}, new { id="dialog-form"} )){ %> <div> <label for="address">Address Name:</label> </div> <div> <%= Html.TextBoxFor(m => m.Name)%> <div> <%= Html.ValidationMessageFor(m => m.Name)%> </div> </div> <input type="submit" value="OK" /> <% } %> When I click submit, It does the validation on the server side, I kinda like it to validate on the Client instead of taking a trip to the server right away.

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  • Star Schema vs Snowflake Schema performance

    - by Megawolt
    Hi... I'm begin to developing a scial sharing website so I'm curious about database design Schema... So in Data-Mining Star-Schema is the best one but how about a social sharing website... And as a nature of the SS websites there will be (i hope :)) many users in same time... Which better for performance for overdose using...

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  • Can you precompile and merge part of an ASP.NET website and then continue development?

    - by michielvoo
    A big part of the web site is precompiled and merged, since it's almost never going to change. The precompiled bits can be replaced in case of updates to the original. I want to continue development of new pages, but when I browse to a new page I get the following error: The file '/Website/Test/Default.aspx' has not been pre-compiled, and cannot be requested. Is there any way around this? Edit: If I remove the precompileApp.config file I get the contents of the marker files when I browse them: This is a marker file generated by the precompilation tool, and should not be deleted!

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  • Uploading image with AsynFileUpload(ACT Control) and changing Image Url of an Image Control??

    - by mahdiahmadirad
    Hi! I Used AsyncFileUpload(one of Ajac Control Toolkit Controls) to Uploading User's Image. this works well. But i want to change the image url of an image contorl to uploaded image url. how can i perform that? I put Image control in a Update Panel: <asp:UpdatePanel ID="UpdatePanelNew" runat="server"> <ContentTemplate> <asp:Image ID="Image1" ImageUrl="~/Images/Categories/NoCategory.png" runat="server" /> </ContentTemplate> </asp:UpdatePanel> <asp:AsyncFileUpload OnClientUploadError="uploadError" OnClientUploadComplete="uploadComplete" runat="server" ID="AsyncFileUpload1" UploadingBackColor="#CCFFFF" ThrobberID="myThrobber" /> &nbsp; <asp:Label ID="myThrobber" runat="server" Style="display: none;"> <img align="middle" alt="Working..." src="../../Images/App/uploading.gif" /> </asp:Label> in C# code I wrote these: protected void Page_Init() { AsyncFileUpload1.UploadedComplete += new EventHandler<AsyncFileUploadEventArgs>(AsyncFileUpload1_UploadedComplete); } void AsyncFileUpload1_UploadedComplete(object sender, AsyncFileUploadEventArgs e) { ScriptManager.RegisterStartupScript(this, this.GetType(), "size", "top.$get(\"" + uploadResult.ClientID + "\").innerHTML = 'Uploaded size: " + AsyncFileUpload1.FileBytes.Length.ToString() + "';", true); string savePath = MapPath("~/Images/Categories/" + Path.GetFileName(e.filename)); ImageOperations.ResizeFromStream(savePath, 128, AsyncFileUpload1.FileContent); Image1.ImageUrl = "~/Images/Categories/" + AsyncFileUpload1.FileName; //AsyncFileUpload1.SaveAs(savePath); } But it does not work. can you help me? Note that ImageOperations.ResizeFromStream() method resizes and saves the image to a specefic folder. actually I should trigger a Postback to Update the Update Panel but How to do that. I used UpdatePanelNew.Update(); but it does not work!

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  • How do I modify my WCF service to work with ASP.NET pages?

    - by Scott
    I created a WCF service (.NET 3.5) that grabs data from a db and returns a list of objects. It works just fine. I tested it using the WCFTestClient application and got the desired results. Now, I tried to create an ASP.NET web application and consume the service. After enabling <serviceDebug includeExceptionDetailInFaults="true"/> in the config file, the error message is "Object reference not set to an instance of an object." How do I modify the service to work with ASP.NET? Thanks!

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  • How to bind form collection back to custom model object that uses 2 custom objects in asp.net mvc?

    - by baijajusav
    What I'm trying to do is rather basic, but I might have my facts mixed up. I have a details page that has a custom class as it's Model. The custom class uses 2 custom objects with yet another custom object a property of one of the 2. The details page outputs a fair amount of information, but allows the user to post a comment. When the user clicks the post button, the page gets posted to a Details action that looks something like this: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Details(VideoDetailModel vidAndComment) { ....} The only fields on the form that is posted are CommentText and VideoId. Here is what the VideoDetailModel looks like. public class VideoDetailModel { public VideoDetailModel() { Video = new VideoDTO(); Comment = new CommentDTO(); } public VideoDetailModel(VideoDTO vid) { Video = vid; Comment = new CommentDTO(); } public VideoDTO Video { get; set; } public CommentDTO Comment { get; set; } } VideoDTO has a few properties, but the ones I need are VideoId. CommentDTO's pertinent properties include CommentText (which is posting correctly) and a UserDTO object that contains a userId property. Everything other than the CommentText value is not being posted. I also have the following line on the ascx page, but the model value never gets posted to the controller. Html.Hidden("Model.Video.VideoId", Model.Video.VideoId); I'm really not sure what I'm missing here. I suppose if I added more form fields for the properties I need, they would get posted, but I only need 1 form entry field for the CommentText. If I could get the same Model objects value that were sent to the page to post with the page, that would help. I'll be happy to make any clarifications needed here. I'm just at loss as to what's going on.

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  • int, short, byte performance in back-to-back for-loops

    - by runrunraygun
    (background: http://stackoverflow.com/questions/1097467/why-should-i-use-int-instead-of-a-byte-or-short-in-c) To satisfy my own curiosity about the pros and cons of using the "appropriate size" integer vs the "optimized" integer i wrote the following code which reinforced what I previously held true about int performance in .Net (and which is explained in the link above) which is that it is optimized for int performance rather than short or byte. DateTime t; long a, b, c; t = DateTime.Now; for (int index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } a = DateTime.Now.Ticks - t.Ticks; t = DateTime.Now; for (short index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } b=DateTime.Now.Ticks - t.Ticks; t = DateTime.Now; for (byte index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } c=DateTime.Now.Ticks - t.Ticks; Console.WriteLine(a.ToString()); Console.WriteLine(b.ToString()); Console.WriteLine(c.ToString()); This gives roughly consistent results in the area of... ~950000 ~2000000 ~1700000 which is in line with what i would expect to see. However when I try repeating the loops for each data type like this... t = DateTime.Now; for (int index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } for (int index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } for (int index = 0; index < 127; index++) { Console.WriteLine(index.ToString()); } a = DateTime.Now.Ticks - t.Ticks; the numbers are more like... ~4500000 ~3100000 ~300000 Which I find puzzling. Can anyone offer an explanation? NOTE: In the interest of compairing like for like i've limited the loops to 127 because of the range of the byte value type. Also this is an act of curiosity not production code micro-optimization.

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  • Should I use WPF or ASP.NET for my next Web Application development?

    - by gap
    We have a web application that has been built using MySQL / PHP / Javascript+JQuery, with server-side HTML generation. The problem is that of the 10 software developers that work for the company, none are PHP experts (we're all .NET / C# developers). I need to make a recommendation to my management team on which technologies to use as the platform for the next generation of web application products. I want to leverage the .NET / C# expertise which the company has and is otherwise building, and so am inclined to recommend some Microsoft technologies. We don't want a client-side plugin, and we don't need flashy animations/multimedia, so I'm ruling out Silverlight. Is WPF ready for primetime? Is ASP.NET deprecated by WPF? How do I choose between these two technologies? Big Question, I know... I can refine it based on your comments if necessary. Thanks for taking the time.

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  • Modeling distribution of performance measurements

    - by peterchen
    How would you mathematically model the distribution of repeated real life performance measurements - "Real life" meaning you are not just looping over the code in question, but it is just a short snippet within a large application running in a typical user scenario? My experience shows that you usually have a peak around the average execution time that can be modeled adequately with a Gaussian distribution. In addition, there's a "long tail" containing outliers - often with a multiple of the average time. (The behavior is understandable considering the factors contributing to first execution penalty). My goal is to model aggregate values that reasonably reflect this, and can be calculated from aggregate values (like for the Gaussian, calculate mu and sigma from N, sum of values and sum of squares). In other terms, number of repetitions is unlimited, but memory and calculation requirements should be minimized. A normal Gaussian distribution can't model the long tail appropriately and will have the average biased strongly even by a very small percentage of outliers. I am looking for ideas, especially if this has been attempted/analysed before. I've checked various distributions models, and I think I could work out something, but my statistics is rusty and I might end up with an overblown solution. Oh, a complete shrink-wrapped solution would be fine, too ;) Other aspects / ideas: Sometimes you get "two humps" distributions, which would be acceptable in my scenario with a single mu/sigma covering both, but ideally would be identified separately. Extrapolating this, another approach would be a "floating probability density calculation" that uses only a limited buffer and adjusts automatically to the range (due to the long tail, bins may not be spaced evenly) - haven't found anything, but with some assumptions about the distribution it should be possible in principle. Why (since it was asked) - For a complex process we need to make guarantees such as "only 0.1% of runs exceed a limit of 3 seconds, and the average processing time is 2.8 seconds". The performance of an isolated piece of code can be very different from a normal run-time environment involving varying levels of disk and network access, background services, scheduled events that occur within a day, etc. This can be solved trivially by accumulating all data. However, to accumulate this data in production, the data produced needs to be limited. For analysis of isolated pieces of code, a gaussian deviation plus first run penalty is ok. That doesn't work anymore for the distributions found above. [edit] I've already got very good answers (and finally - maybe - some time to work on this). I'm starting a bounty to look for more input / ideas.

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  • ASP.Net MVC2 Client and Server Validation sharing the same code - is it possible?

    - by RemotecUk
    With the excellent XVal by Steve Sanderson, it is possible to tell the client side validation to post the value being validated to the server using jquery. A method on the server then uses the same server side code you use for your server side validation, and returns simply a true or false to determine if the field is valid. The advantage of this method is that you write your complex validation logic once in C# code and then put some JQuery plumbing in to tell your client page where to go to access your server validation. I have been reading some blogs on MVC2 but no one seems to mention this functionality. Is it possible to tell the Microsoft MVC validation javascript to call a url validate data? Or do you have to write your own client side validation routines. I should note that using the xVal method a custom validation to say if an email address is in use or not can be run from the client via a JQuery post which accesses the server side validation logic.

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  • ASP.NET MVC - Data Annotations - Why add a default RequiredAttribute?

    - by redsquare
    Can anyone explain why it is assumed that a non nullable type property should always have a RequiredAttribue? I am trying to write a label helper that will auto append * or change the css class so that I can indicate to the user that the field is required. However when querying the metadata the non nullable properties end up with a required attribute. MVC Source Code: protected override IEnumerable<ModelValidator> GetValidators( ModelMetadata metadata, ControllerContext context, IEnumerable<Attribute> attributes) { _adaptersLock.EnterReadLock(); try { List<ModelValidator> results = new List<ModelValidator>(); if (metadata.IsRequired && !attributes.Any(a => a is RequiredAttribute)) { //******* Why Do this? attributes = attributes.Concat(new[] { new RequiredAttribute() }); } foreach (ValidationAttribute attribute in attributes.OfType<ValidationAttribute>()) { DataAnnotationsModelValidationFactory factory; if (!_adapters.TryGetValue(attribute.GetType(), out factory)) factory = _defaultFactory; results.Add(factory(metadata, context, attribute)); } return results; } finally { _adaptersLock.ExitReadLock(); } }

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  • ASP.NET MVC Users unable to login after password change, and being locked out.

    - by Russell Kay
    All, I have a website that is in use and has several users, using the MySqlMembershipProvider. We have had a few users that have been locked out (for some reason) and recently I unlocked them and reset the passwords, using the MembershipUser.UnlockUser and MembershipUser.ResetPassword methods. Now they are definitely marked in the database as Unlocked and the password has been reset, but they still cannot log in. Does anyone have any ideas why this might happen?

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  • Ruby Performance Profiling

    - by JustSmith
    I'm developing some code that calls another function and then sends out its response. If the said function takes to long i want to record this. Are there any light weight FREE performance profiling tools for Ruby, not on rails, that can do this? I'm even open to any solution that is accurate.

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  • Does visibility affect DOM manipulation performance?

    - by Chetan Sastry
    IE7/Windows XP I have a third party component in my page that does a lot of DOM manipulation to adjust itself each time the browser window is resized. Unfortunately I have little control of what it does internally and I have optimized everything else (such as callbacks and event handlers) as much as I can. I can't take the component off the flow by setting display:none because it fails measuring itself if I do so. In general, does setting visibility of the container to invisible during the resize help improve DOM rendering performance?

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  • Is Lucern.net good choice for website search of 1M item product database? (giving up on SQL Server

    - by Pete Alvin
    We currently have in production SQL Server 2005 and we use it's full text search for a eCommerce site search of a million product database. I've optimized it as much as possible (I think) and we're still seeing search times of five seconds. (We don't need site scrawl or PDF (etc.) document indexing features... JUST "Google" speed for site search.) I was going to buy dtSearch but now I realize I can just use Lucerne.net and save the $2,500 for two server license. I read on a post that Lucerne.Net is not good for website searches. Has anyone else used Lucerne.Net from ASP.Net? Does it take a lot of memory? Any problems? Any comments?

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  • ModalPopupExtender + ASP.NET AJAX: Can't page grid

    - by Alex
    I'm trying to page and sort my datagrid wich is inside a modalpopupextender but I can't page it in any way, already tried with , put the updatepanel inside, outside, in the middle (loL) and it does NOT work. modal popup does not get closed but the grid just dissapear. Code: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load If Not Page.IsPostBack Then BindData() End If End Sub Private Sub btnSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearch.Click SqlServerDS.SelectCommand = "SELECT * FROM emp WHERE name LIKE '%" & txtSearchName.Text & "%'" BindData() End Sub Private Sub BindData() grdSearch.DataSource = SqlServerDS grdSearch.DataBind() End Sub Private Sub grdBuscaPaciente_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles grdSearch.PageIndexChanging grdSearch.PageIndex = e.NewPageIndex BindData() End Sub Inside the Designer, this is the code h: <modalpopupextender> </modalpopupextender> <panel> <updatepanel> <gridview> </gridview> </updatepanel> </panel>

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  • ASP.NET MVC: How to transfer more than one object to View method?

    - by ile
    I finished NerdDinner tutorial and now I'm playing a bit with project. Index page shows all upcoming dinners: public ActionResult Index() { var dinners = dinnerRepository.FindUpComingDinners().ToList(); return View(dinners); } In DinnerRepository class I have method FindAllDinners and I would like to add to above Index method number of all dinners, something like this: public ActionResult Index() { var dinners = dinnerRepository.FindUpComingDinners().ToList(); var numberOfAllDinners = dinnerRepository.FindAllDinners().Count(); return View(dinners, numberOfAllDinners); } Of course, this doesn't work. As I'm pretty new to OOP I would need help with this one. Thanks, Ile

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