Update UI from multiple worker threads (.NET)

Question

I have a pet project that I\'m working on that has multiple worker threads. Outputting everything to the console is getting hard to follow, so I want to develop a UI that wi

Answer 1

If you're creating your own threads (non BackgroundWorker or ThreadPool threads) you can pass a callback method from your main thread that's called from the worker thread. This also lets you pass arguments to the callback and even return a value (such as a go/no-go flag). In your callback you update the UI through the target control's Dispatcher:

public void UpdateUI(object arg)
{
    controlToUpdate.Dispatcher.BeginInvoke(
        System.Windows.Threading.DispatcherPriority.Normal
        , new System.Windows.Threading.DispatcherOperationCallback(delegate
        {
            controToUpdate.property = arg;
            return null;
        }), null);
    }
}