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  • Nullable Enum nullable type question

    - by Michael Kniskern
    I get the following compilation error with the following source code: Compilation Error: Type of conditional expression cannot be determined because there is no implicit conversion between '' and 'MyEnum' Source Code public enum MyEnum { Value1, Value2, Value3 } public class MyClass { public MyClass() {} public MyEnum? MyClassEnum { get; set; } } public class Main() { object x = new object(); MyClass mc = new MyClass() { MyClassEnum = Convert.IsDBNull(x) : null ? (MyEnum) Enum.Parse(typeof(MyEnum), x.ToString(), true) }; } How can I resolve this error?

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  • POX return data from WCF Data Services

    - by keithwarren7
    I am using WCF Data Services (netfx4) to provide data sourced from SQL via EF, the standard OData mechanism is fine and JSON works as well but I need a third option for generic POX (plain old xml). I have yet to come across a simple strategy or switch that allows me to control this but I am sure one must exist or a workaround method might be available. Any ideas? Ideally I would like to be able to use something like the JSONP option wherein I append 'format=JSON' to the URL, in this case 'format=pox' or 'POX=true' or something of that nature.

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  • Return SQL Query as Array in Powershell

    - by Emo
    I have a SQL 2008 Ent server with the databases "DBOne", "DBTwo", "DBThree" on the server DEVSQLSRV. Here is my Powershell script: $DBNameList = (Invoke-SQLCmd -query "select Name from sysdatabases" -Server DEVSQLSRV) This produces my desired list of database names as: Name ----- DBOne DBTwo DBThree I has been my assumption that anything that is returned as a list is an Array in Powershell. However, when I then try this in Powershell: $DBNameList -contains 'DBTwo' It comes back has "False" instead of "True" which is leading me to believe that my list is not an actual array. Any idea what I'm missing here? Thanks so much! Emo

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  • ASP .NET 2.0 cannot open SQLConnection

    - by user162117
    Using: IIS 6; Anonymous Authentication (with a user that belongs to the administrators group); SQL Server 2005; .NET 2.0 Web.config: <system.web> <securityPolicy> <trustLevel name="Full" policyFile="internal" /> </securityPolicy> </system.web> <identity impersonate="true"/> I have this exception when I try to Open a SQLConnection: Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. What could it be?

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  • SSRS 2008 Installation Guidelines/Best Practices?

    - by Brad Bowman
    I know I have seen recommendations for installing SSRS 2005 and it stated that you should separate SSRS from the DB Engine that hosts the data sources for your reports, that you should not install them on the same server. Is there any documentation for SSRS 2008 that provides guidelines/best practices for installation? I am assuming that the same holds true for SSRS 2008 as it did for SSRS 2005 but have not seen it specifically stated anywhere. We have a project that will utilize SSRS 2008 and there is a difference of opinion on where to install it, on it's own dedicated server or on the same SQL Server as the report data sources. If there is a link to any documentation that could be provided it would be gratefully appreciated, all I am finding besides what is in BOL refers to 2005. Thanks in advance!

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  • Capturing WPF Listbox checkbox selection

    - by wonea
    Been trying to figure out, how do I capture the events from a listbox. In the template, I've added the parameter IsChecked="" which starts my method. However, the problem is trying to capture what has been checked in the method. SelectedItem only returns what is currently selected, not the checkbox. object selected = thelistbox.SelectedItem; DataRow row = ((DataRowView)selected).Row; string teststring = row.ItemArray[0].ToString(); // Doesn't return the checkbox! <ListBox IsSynchronizedWithCurrentItem="True" Name="thelistbox" ItemsSource="{Binding mybinding}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <CheckBox Content="{Binding personname}" Checked="CheckBox_Checked" Name="thecheckbox"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

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  • Rails Action and Fragment Caching during Development?

    - by viatropos
    I'm just starting to get into Rails caching and am wondering how to test whether or not caching is working in my development environment. I have set these two config variables for both the development (temporarily) and production environments: config.action_controller.perform_caching = true config.action_controller.page_cache_directory = File.join(RAILS_ROOT, 'public', 'cache') And my controller basically looks like this (using the resource_controller gem): class EventsController < Spree::BaseController resource_controller caches_page :index index.response do |format| format.html format.xml { render :xml => @collection.to_xml } end # ... end If I do that, I get these files: public/cache/events.html public/cache/events.xml But when I change caches_page to caches_action, I don't see any generated files and am not sure how to tell if the response has been cached. What do I need to know to know that this is working? I've read the docs and related, the rails caching guides, the railscast, and a few other docs, but I'm still wondering where everything is stored. Thanks!

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  • Python if statement efficiency

    - by Dennis
    A friend (fellow low skill level recreational python scripter) asked me to look over some code. I noticed that he had 7 separate statements that basically said. if ( a and b and c): do something the statements a,b,c all tested their equality or lack of to set values. As I looked at it I found that because of the nature of the tests, I could re-write the whole logic block into 2 branches that never went more than 3 deep and rarely got past the first level (making the most rare occurrence test out first). if a: if b: if c: else: if c: else: if b: if c: else: if c: To me, logically it seems like it should be faster if you are making less, simpler tests that fail faster and move on. My real questions are 1) When I say if and else, should the if be true, does the else get completely ignored? 2) In theory would if (a and b and c) take as much time as the three separate if statements would?

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  • Exception on dowloading Pdf file in ASP.NET

    - by Sauron
    I am downloading a Pdf file created by crystal report and I download as ReportDocument repDoc = ( ReportDocument ) System.Web.HttpContext.Current.Session["StudyReportCrystalDocument"]; // Stop buffering the response Response.Buffer = false; // Clear the response content and headers Response.ClearContent(); Response.ClearHeaders(); try { repDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "StudyReport" ); } catch( Exception ex ) { } Eventhough it is working But I got an exception base {System.SystemException} = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.} Can anyone explain what is the reason for this and how to override the exception?

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  • Minimum permissions to COM Object to Instantiate running as LocalService

    - by Paul Farry
    I'm writing a .NET Service that creates a COM object. If I run the Service as the Logged on user (everything is fine). If I run the Service as LocalSystem, everything is fine. If I run the Service as LocalService, then I get an AccessDeniedException when trying to instantiate the COM Object. I've come up with the following block to grant the necessary permissions and it appears to work correctly, but I wanted to make sure I wasn't missing something regarding the COM rules. Private Sub SetAccessToRockeyRegistry() Using reg As RegistryKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey("CLSID\{EE0680D3-AAC3-446B-AFD7-F9DE2D3E28FB}", True) Dim sec As RegistrySecurity sec = reg.GetAccessControl Dim ar As RegistryAccessRule Dim sid As SecurityIdentifier sid = New SecurityIdentifier(WellKnownSidType.LocalServiceSid, Nothing) ar = New RegistryAccessRule(sid, RegistryRights.ReadKey Or RegistryRights.EnumerateSubKeys Or RegistryRights.QueryValues, AccessControlType.Allow) sec.AddAccessRule(ar) ar = New RegistryAccessRule(sid, RegistryRights.ReadKey Or RegistryRights.EnumerateSubKeys Or RegistryRights.QueryValues, _ InheritanceFlags.ObjectInherit Or InheritanceFlags.ContainerInherit, PropagationFlags.InheritOnly Or PropagationFlags.NoPropagateInherit, AccessControlType.Allow) sec.AddAccessRule(ar) reg.SetAccessControl(sec) End Using End Sub

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  • how to show legend in graphs using flot

    - by robezy
    Hi, I'm using flot library to show plot graph. I need to show the legend in a separate div. Quoted from flot api. If you want the legend to appear somewhere else in the DOM, you can specify "container" as a jQuery object/expression to put the legend table into. So i wrote the legend options as below. "legend":{"show":true,"container":"jQuery("#placeholder")"}} Unfortunately it is not showing anything? is this the correct way of writing legend option? One good thing is it not showing default legend. so i guess the problem is with way i wrote the container . Any thoughts? Thanks

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  • Using reflection to change static final File.separatorChar for unit testing?

    - by Stefan Kendall
    Specifically, I'm trying to create a unit test for a method which requires uses File.separatorChar to build paths on windows and unix. The code must run on both platforms, and yet I get errors with JUnit when I attempt to change this static final field. Anyone have any idea what's going on? Field field = java.io.File.class.getDeclaredField( "separatorChar" ); field.setAccessible(true); field.setChar(java.io.File.class,'/'); When I do this, I get IllegalAccessException: Can not set static final char field java.io.File.separatorChar to java.lang.Character Thoughts?

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  • Execute JavaScript function on a dynamic element (AJAX).

    - by jartaud
    Hello i have this following function: ... var model = $("#carModel"); .... model.change(validModel); function validModel(){ if(model.val() == undefined){ model.addClass("errorJS"); return false; }else{ model.removeClass("errorJS"); return true; } } I am getting carmodel id from a select box generated after an AJAX call. I can get its value in the Firebug console, but the function doest not execute. Even tough i use model.livequery(validModel); // The errorJS class put a red border in a element, if the function returns false

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  • telerik mvc grid access cell data to enable columns.Command

    - by AZee
    Hi! I can't seem to find a way to reference the value in a column in the grid, in my case it is the StatusId. Based on the cell value in this row, for the StatusId, I need to return a true or false to the method ".Visible(???)". It would be nice to find the answer in the documentation online but I haven't been able to. I find it hard to believe that I would be the first person who ever needed this functionality. I would be most appreciative of any assistance since no one in the telerik forums know. .Columns(columns => { columns.Command(commands => { commands.Edit().ButtonType(ButtonType); commands.Delete().ButtonType(ButtonType); }).Width(90).Visible(???); Thanks! AZee

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  • JMenuBar dropping down to a "custom" JPanel and "erased"

    - by Jani
    The JMenuItems of JMenuBar drops down to a JPanel added to the JFrame, but the JPanel erases the JMenuItems. Do I supposed to pause the re-drawing of the JPanel? I'm using getGraphics() on the JPanel for drawing an image, this method is called from a thread with (for example) 200 ms delay. edit: It's a (very simple) game inside the JPanel. (I've added a field "paused" to the JPanel and i've edited the paint method so it repaints the JPanel only if paused is false, however I don't know if this "solution" is good. (It's set to true when the user clicks on a menu and set to false when selects or cancels it.)

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  • HTML is not being interpreted after JQuery's .ajax function

    - by Casidiablo
    Hello there... Once I have retrived an HTML string with the $.ajax function I put it into a div... the HTML is a simple message with a <b> tag, but it's not being interpreted by the browser, I mean, the <b> is not making the text bold. Here is what I do: $.ajax({ url: 'index.php?ajax=ejecutar_configuracion&id_gadget=cubrimientos', cache: false, success: function(html){ // html = '<b>hello</b> newton' $('#config_reporte').html(html).dialog({ height: 300, width: 500, modal: true }); } }); As you can see, I'm writing the content of the HTML result into a modal dialog window. Does anybody know why is this happening? This should be something easy to do... but I haven't been able to make it work properly. Thank you so much.

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  • get error with using php nusoap for web service.

    - by mohammad mirzadeh
    i want get data from a webserver (.net) and display it into my website. my code is : $client = new soapclient('http://www.tsetmc.com/WebService/TsePublic.asmx?WSDL', true); $client->useHTTPPersistentConnection(); $user = array('UserName' => 'etc'); $pass = array('Password' => 'etc'); $result = $client->call('Board', $user, $pass); print_r( $result ); and i get this error : Warning: Illegal offset type in isset or empty in /home/mmdicir/public_html/lib/nusoap-0.7.3/lib/nusoap.php on line 7211 Array ( [faultcode] = soap:Server [faultstring] = Server was unable to process request. --- String reference not set to an instance of a String. Parameter name: s [detail] = )

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  • Using ELMAH and URLRewritingNet Together

    - by Chris Laythorpe
    I have ELMAH setup on my production server and it has done a fantastic job of letting me know about any niggles - as well as any creative SQL injection! I've decided to introduce URl Rewriting and went for http://www.urlrewriting.net/ in the end. It was nice and easy to setup and it's doing exactly what I want with the customer-facing site. The problem is ELMAH. Because I've set the urlrewritingnet node in my config like so: <urlrewritingnet rewriteOnlyVirtualUrls="true" contextItemsPrefix="QueryString" defaultPage = "default.aspx" defaultProvider="RegEx" xmlns="http://www.urlrewriting.net/schemas/config/2006/07" > ...ELMAH likes to do this to it's axd links; http://www.mydomain.com/elmah.axd/stylesheet/default.aspx Does anyone have any idea how to either a) stop the re-writer following the .axd; or b) add rules to the re-writer to get ELMAH to work Any ideas? I'm happy to hack about with the httpHandlers...

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  • Launching python within python and timezone issue

    - by Gabi Purcaru
    I had to make a launcher script for my django app, and it seems it somehow switches the timezone to GMT (default being +2), and every datetime is two hours behind when using the script. What could be causing that? Here is the launcher script that I use: #!/usr/bin/env python import os import subprocess import shlex import time cwd = os.getcwd() p1 = subprocess.Popen(shlex.split("python manage.py runserver"), cwd=os.path.join(cwd, "drugsworld")) p2 = subprocess.Popen(shlex.split("python coffee_auto_compiler.py"), cwd=os.path.join(cwd)) try: while True: time.sleep(2) except KeyboardInterrupt: p1.terminate() p2.terminate() If I manually run python manage.py runserver, the timezone is +2. If, however, I use this script, the timezone is set to GMT.

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  • iPhone GPS Development - Tips + Tricks

    - by Keith Fitzgerald
    Hello - I'm looking for some feedback, blog links, etc that offer some tips and tricks for iPhone GPS development. I've read and understand the API, I have my demo app up and running, etc but I have run into some "quirks" with gps on iphone. For example, it seems that you you will receive a lot less location updates when your iphone enters "power save" mode. I've read that you can combat this by playing music in your application [not sure if this is true]. It also seems that, terms of making a reasonable pedometer, you should filter out any reading with horizontal accuracies less than 20 meters. Does this sound right? Is there any kind of checklist out on the web for iphone gps gotchas? Thanks in advance.

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  • Disabling Submit Button in ASP.NET 3.5 Application with JavaScript breaks BlackBerry submission

    - by ahsteele
    The following code is being used to disable a Submit button once it has been clicked. This works great on desktop browsers and most BlackBerry mobile browsers. Submit.Attributes.Add("onclick", "javascript:this.disabled=true;" + ClientScript.GetPostBackEventReference(Submit, null)); Unfortunately, when using a BlackBerry Storm clicking the submit button causes the device to just reload the page. If I remove this code the Storm browser submits the page just fine. I need to disable the button when the browser is capable of doing so but do not want to affect browsers that are not JavaScript capable. I realize I could add the jQuery framework and only attach the event client side, but am trying to look for the simplest fix (read least intrusive) as this is a legacy application. Any suggestions?

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  • How to get "all" (or the MAIN/LAUNCHER) android intent

    - by Christoph Jerolimov
    Hey, i want receive all start app intents (i think MAIN/LAUNCHER, see below) to log how often i used the application. So i do not want create an activity... I tried several receiver blocks, but for now nothing works: with, without priority, only the action, both, only the category and so on.. <receiver android:name=".Receiver" android:enabled="true" android:process=".e"> <intent-filter priority="100000" android:priority="100000"> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </receiver> Have anyone an idea? Thanks

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  • Student's t distribution in JavaScript

    - by Sai Emrys
    Google Spreadsheets currently does not support the standard function TDIST - i.e. the Student's t-distribution. This function is critical for calculating p-values. It seems that this is related to the fact that no integral-using functions (AFAICT) are implemented either. However, Google Docs allows people to add and publish their own scripts, in JavaScript. So ideally we should have something like: function tdist(t_value, degrees_of_freedom, two_tailed [defaults true]) {...} Anyone know of either an extant implementation of this (my google-fu has not turned up one, but may be weaker than yours) or a good idea for how to do it? I'd like to publish this together with some other useful functions that are currently calculable but a bit of a pain (like Student's t-test itself). Thanks!

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  • xsl - multiple xsl:if with the same condition

    - by mickthomposn
    Newbie question on xslt. I've multiple xsl:if checks like <xsl:if test="node/node1"> ...</xsl:if> ... <xsl:if test="node/node1"> ...</xsl:if> ... <xsl:if test="node/node1"> ... </xsl:if> Is there a way to parameterize the test condition to make the code more readable and easy to maintain? Maybe with a variable or something like <xsl:variable name="node1Present" select="true()"/> <xsl:if test="$node1Present"> ... </xsl:if> I don't understand how to construct the variable to reflect the 'test a node exist' (test="node/node1")

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  • stringtemplate .net dynamic object

    - by Mark Milford
    Hi I am using string template to render some content, but the content may be variable so not sure how to pass it in (using .net / c#) Basic idea is I have a List which need to end up as parameters, e.g. List<KeyValuePair<string, object>> ret = new List<KeyValuePair<string, object>>(); ret.Add(new KeyValuePair<string, object>("elem1", true)); ret.Add(new KeyValuePair(string, object>("elem2", false)); Now I want these to show up in string template as: $item.elem1$ $item.elem2$ I can get them to be $elem1$ or $elem2$ but i need them inside of a structure. So I in effect need to convince the string template setAttribute that I'm passing in an object with properties elem1 and elem2 when in fact I have a List of KeyValuePairs. Thanks

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