private void MyTaskCompletedCallback(IAsyncResult ar)
{
// get the original worker delegate and the AsyncOperation instance
MyTaskWorkerDelegate worker = (MyTaskWorkerDelegate)((AsyncResult)ar).AsyncDelegate;
AsyncOperation async = (AsyncOperation)ar.AsyncState;
bool cancelled;
// finish the asynchronous operation
worker.EndInvoke(out cancelled, ar);
// clear the running task flag
lock (_sync)
{
_myTaskIsRunning = false;
_myTaskContext = null;
}
// raise the completed event
MyTaskAsyncCompletedEventArgs completedArgs = new MyTaskAsyncCompletedEventArgs(null, cancelled, null, Id);
async.PostOperationCompleted(delegate(object e) { OnMyTaskCompleted((MyTaskAsyncCompletedEventArgs)e); }, completedArgs);
}
protected virtual void OnMyTaskCompleted(MyTaskAsyncCompletedEventArgs e)
{
if (MyTaskCompleted != null)
MyTaskCompleted(this, e);
}
static void task_MyTaskCompleted(object sender, MyTaskAsyncCompletedEventArgs e)
{
Console.WriteLine("Main : task[{0}] completed :) ", e.Id);
}