.net-4.0

问题 Below is the full XAML for the WPF application, no codebehind. On computers that have Expression Blend 4 installed, the following application works. However, on machines that do not have Blend, the application crashes. This is extremely simplistic, but it appears that the [i:Interaction.Behaviors] portion is what is causing the issue, which is a behavior from Blend that creates a smooth animation. <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http:/

问题 I have a web project that had UrlRewriter.NET installed and working fine on .NET 3.5 locally. I then upgraded it to .NET 4.0 and this continued to work on my local PC in Visual Studio 2010. When I moved this .NET 4.0 project to my server the url rewriting stopped working. Here is my web.config (condensed for readability here) <?xml version="1.0"?> <configuration> <configSections> <section name="rewriter" requirePermission="false" type="Intelligencia.UrlRewriter.Configuration

问题 How can I parse an MP3 file to get its all attributes? Also how to edit and the attributes of the MP3 file? Is there any class available in .NET v4.0? 回答1: Those attributes are called ID3 tags. I do not think it is the scope of the .NET framework to provide reading them. Here is some code from SourceForge. http://sourceforge.net/projects/csid3lib/ 回答2: You might have a look at the taglib library for .NET. It can do both reading and writing of id3 tags among other things. 来源： https:/

问题 I have a WCF service (over a webHttpBinding ) using ASP.NET 4/IIS 8 and I had no problems communicating with it using JSON with GET . However, today I needed to implement a method that sends a large query string (about 3000 characters, not that long but longer than that I've been using). I called the service and immediately got a 404 error, without even stepping into my code at my debug machine. The first thing that came to my mind is the maximum query string length limit. I've added this to

问题 I an using VS2010, .NET4 and EF4. I would like to see the actual SQL that is generated when this is run. Also, what is this the best way to write this statement? Here is my code: var cklContactItems = from a in dbTestCenterViews.appvuChecklistExports where a.MarketChecklistID == MCLID && a.checklistSectionID == SID && a.fieldGroupOrder != null orderby a.fieldGroupOrder ascending select new { a.Column1, a.Column2, a.Column3, a.Column4, a.Column5,a.Column1FieldID,a.Column2FieldID,a

问题 I'm working on a sample project built from the ASP.NET Web Application template (web forms, not MVC). After a user logs in, I want to grab the user's ID and store it in a session variable so I can pass it between pages. How do I get the user's ID from the ASP.NET membership provider? By user's ID, I'm referring to the GUID in the membership database. Is there a method to get the user's ID? I'm using the default database schema and have it deployed to my server. Thanks! 回答1: Try this:

问题 With Forms Authentication when the app needs to redirect to sign-in page is there an event or any extensibility point that will let me do additional work to the request before it redirects to the sign-in page? I would like to send additional information in the query string that could vary such that it wouldn't work to just statically embed that in the link in the loginUrl node in the web.config. Edit: For clarification, I want to intercept the request prior to being redirected TO the login

问题 When invoking a WCF service asynchronous there seems to be two ways it can be done. 1. WcfClient _client = new WcfClient(); public void One() { _client.BegindoSearch("input", ResultOne, null); } private void ResultOne(IAsyncResult ar) { string data = _client.EnddoSearch(ar); } 2. public void Two() { WcfClient client = new WcfClient(); client.doSearchCompleted += TwoCompleted; client.doSearchAsync("input"); } void TwoCompleted(object sender, doSearchCompletedEventArgs e) { string data = e

问题 Ive got a test code setup with the custom control: /// <summary> /// Interaction logic for UCTest.xaml /// </summary> public partial class UCTest : UserControl { public static readonly DependencyProperty LastNameProperty = DependencyProperty.Register("LastName", typeof(string), typeof(UCTest), new PropertyMetadata("No Name", LastNameChangedCallback, LastNameCoerceCallback), LastNameValidateCallback); private static void LastNameChangedCallback( DependencyObject obj,

问题 So I thought Webclient.DownloadFileAysnc would have a default timeout but looking around the documentation I cannot find anything about it anywhere so I'm guessing it doesn't. I am trying to download a file from the internet like so: using (WebClient wc = new WebClient()) { wc.DownloadProgressChanged += ((sender, args) => { IndividualProgress = args.ProgressPercentage; }); wc.DownloadFileCompleted += ((sender, args) => { if (args.Error == null) { if (!args.Cancelled) { File.Move(filePath,