C# async/await Progress event on Task<> object

Question

I\'m completely new to C# 5\'s new async/await keywords and I\'m interested in the best way to implement a progress event.

Now I\'d prefer

Answer 1

Simply put, Task doesn't support progress. However, there's already a conventional way of doing this, using the IProgress interface. The Task-based Asynchronous Pattern basically suggests overloading your async methods (where it makes sense) to allow clients to pass in an IProgess implementation. Your async method would then report progress via that.

The Windows Runtime (WinRT) API does have progress indicators built-in, in the IAsyncOperationWithProgress and IAsyncActionWithProgress types... so if you're actually writing for WinRT, those are worth looking into - but read the comments below as well.