private void ReadCompletedCallback(IAsyncResult ar)
{
ReadWorkerDelegate worker = (ReadWorkerDelegate)((AsyncResult)ar).AsyncDelegate;
worker.EndInvoke(ar);
lock (myLock)
{
readIsRunning = false;
}
}
public void ReadAsync(StreamReader stream)
{
ReadWorkerDelegate worker = new ReadWorkerDelegate(ReadWorker);
AsyncCallback completedCallback = new AsyncCallback(ReadCompletedCallback);
lock (myLock)
{
if (readIsRunning)
{
throw new InvalidOperationException("The control is currently busy.");
}
AsyncOperation async = AsyncOperationManager.CreateOperation(null);
worker.BeginInvoke(stream, completedCallback, async);
readIsRunning = true;
}
}