async-ctp

I'm walking through this tutorial on how to program asynchronously in c# and have come across an error I'm not sure how to resolve. Here's the link: http://msdn.microsoft.com/en-us/library/hh191443.aspx and the error is: Cannot find all types required by the 'async' modifier. Are you targeting the wrong framework version, or missing a reference to an assembly? I am targeting the .NET 4.0 framework and am unsure as to any additional assemblies required. Here is the code: public async Task<string> AccessTheWebAsync(Class1 class1, Class2 class2) { // GetStringAsync returns a Task<string>. That

Running the following C# console app class Program { static void Main(string[] args) { Tst(); Console.ReadLine(); } async static Task Tst() { try { await Task.Factory.StartNew (() => { Task.Factory.StartNew (() => { throw new NullReferenceException(); } , TaskCreationOptions.AttachedToParent ); Task.Factory.StartNew ( () => { throw new ArgumentException(); } ,TaskCreationOptions.AttachedToParent ); } ); } catch (AggregateException ex) { // this catch will never be target Console.WriteLine("** {0} **", ex.GetType().Name); //****** Update1 - Start of Added code foreach (var exc in ex.Flatten()

I downloaded Async CTP and installed it on my development machine, which has both VS 2010 and VS 2012. The installation seemed to have completed successfully (no errors). I created a brand new WinForms project (language: VB.NET), and decorated a Form_Load with Async . Problem is that Async keyword is not recognized. Did anyone manage to make it work and how? Doing the same in VS 2012, targeting .NET framework 4.5 works. Note: I don't need any Silverlight , Windows Phone or even Web at this time. As suggested by @Ramhound, I uninstalled everything related to VS 2012 and 2010, then installed

Due to work restrictions, I need to continue using Visual Studio 2010 for the immediate future. At the same time, I have been learning about Async in my personal coding. Is the latest Async CTP fully consistent with the Async language features of C# 5.0? And is installing the Async CTP the correct way to use Async with VS2010? The Async CTP is the only way to use async in Visual Studio 2010. However, it is not the async that made it into .NET 4.5 / Visual Studio 2012, several bugs in the CTP have been fixed in the final release. You will not get these bug fixes in Visual Studio 2010, according

I recently read an article about c#-5 and new & nice asynchronous programming features . I see it works greate in windows application. The question came to me is if this feature can increase ASP.Net performance? consider this two psudo code: public T GetData() { var d = GetSomeData(); return d; } and public async T GetData2() { var d = await GetSomeData(); return d; } Has in an ASP.Net appication that two codes difference? thanks Well for a start your second piece of code would return Task<T> rather than T . The ultimate answer is "it depends". If your page needs to access multiple data

I have these two methods, that I want to run async to keep the UI responsive. However, it's still hanging the UI. Any suggestions? async void DoScrape() { var feed = new Feed(); var results = await feed.GetList(); foreach (var itemObject in results) { var item = new ListViewItem(itemObject.Title); item.SubItems.Add(itemObject.Link); item.SubItems.Add(itemObject.Description); LstResults.Items.Add(item); } } public class Feed { async public Task<List<ItemObject>> GetList() { var client = new WebClient(); string content = await client.DownloadStringTaskAsync(new Uri("anyUrl")); var lstItemObjects