.net-4.0

We have an asp.net web site that is deployed on several IIS servers. The site is compile-on-demand as opposed to a pre-compiled web application. Normally deployments go fine but every now and again we get a 401 for one of the deployed pages on one of the servers. There is nothing special about which page or which server apart from the fact that it's generally the higher traffic pages that it happens to. The only way to rectify this is to deploy the same page again. The ACLs look fine on the files themselves so the thought is that there is a file locking issue in the Temporary ASP.NET Files

I cant find information about retargeting my code from .NET 4.5 to 4.0. I have to install this application on Windows XP. my code in .NET 4.5 public async Task <IXLWorksheet> ImportFile(string fileToImport) { ... return await Task.FromResult<IXLWorksheet>(Sheet1) } In .NET 4.0 method FromResult does not exist. Someone knows how it should looks in .NET 4.0?? You're returning the awaited result of a task, which is constructed on a result. The solution is rather simple - drop the await : return Sheet1; The async keyword in the method declaration will take care of wrapping it in a task. If, for

The following code creates the correct number of files, but every file contains the contents of the first list. Can anyone spot what I've done wrong please? private IList<List<string>> GetLists() { // Code omitted for brevity... } private void DoSomethingInParallel() { var lists = GetLists(); var tasks = new List<Task>(); var factory = new TaskFactory(); foreach (var list in lists) { tasks.Add(factory.StartNew(() => { WriteListToLogFile(list); })); } Task.WaitAll(tasks.ToArray()); } The reason why is down to the way C# evaluates anonymous methods, they're not true closures. It really has