Question

I’m working on a multi-threaded Silverlight application.

The application has two threads: Main/UI and a background working thread.

The UI thread should be able to kill the background thread, like so:

private Thread executionThread;  ....  executionThread = new Thread(ExecuteStart); executionThread.Start();  ....  executionThread.Abort(); // when the user clicks 'Stop' 

The last line raises an Exception:

MethodAccessException: Attempt to access the method failed: System.Threading.Thread.Abort()

Any idea? why i cannot abort a thread in Silverlight?

Thanks, Naimi

Answer 1

Rather than creating a Thread manually for this purpose you might want to consider using the BackgroundWorker class.

This class has built in functionality for cancelling the asynchronous operation when WorkerSupportsCancellation = true.

Have a look at this article on MSDN for a full example of how to use the BackgroundWorker in Silverlight.