.net-4.0

I'm encountering a problem with one of my IEnumerable 's that I haven't seen before. I have a collection: IEnumerable<IDependency> dependencies; that's being used in a foreach loop. foreach (var dependency in dependencies) For some reason this foreach doesn't iterate over my IEnumerable and simply skips to the end. If I change my foreach to loop through a a list however it seems to work fine: foreach (var dependency in dependencies.ToList()) What could I be doing that's causing this behaviour? I haven't experienced this with IEnumerable before. Update : Here's the entire code of my foreach

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, Path.ChangeExtension(filePath, ".jpg")); } mr.Set(); } else { ex = args.Error; mr.Set(); } }); wc

i have the following problem. if i use an image for a datagrid header i get an error while toggling visibility. <DataGridTextColumn Header="{StaticResource Image_Link}" IsReadOnly="True"> Error: Bei dem angegebenen Element handelt es sich bereits um das logische untergeordnete Element eines anderen Elements. the only workaround i found so far is to create a ControlTemplate with the specific image foreach of my imageheadercolumns. is this datagrid behaviour a bug? EDIT: Error translated by google: The specified element is already the logical child of another element. EDIT: Sample <Window x

I have a .NET 4 WPF application that needs to run inside a company network. The application does not use local files (it does have an app.config file but it only contains some connection strings ) for data storage but a central SQL server database. What are the downsides of putting the application files on a shared network drive and just creating a shortcut to the application executable for each user? I've found some data on the subject in the following links but I couldn't get a clear answer: Run a .NET program from a mapped drive or shared folder - Pros/Cons Run a .NET program from a mapped

I have a WCF REST web service that is hosted via a service route in global.asax which looks like this; protected override void RegisterRoutes(System.Web.Routing.RouteCollection routeTable) { routeTable.Add(new ServiceRoute("", new WebServiceHostFactory(), typeof(UserService))); } I am wondering whether or not it is possible to also host another web service (which is a WCF Data Service) in the same application. protected override void RegisterRoutes(System.Web.Routing.RouteCollection routeTable) { routeTable.Add(new ServiceRoute("", new WebServiceHostFactory(), typeof(UserService))); routeTable

hi I want to "hook" another application so when it closes I can close my application. I don't want to poll the running process as this seems unnecessarily intensive, if I want to respond in real-time. I believe apps send out message within windows when they are created or closed etc how can I hook this to know when it closes? for example lets say my app loads checks running processes to ensure notepad is loaded and if so it remains loaded until notepad is closed. as notepad is closed my app some how knows this and exits... is this possible if so how? it needs to work on xp vista and win7 If