WPF–forcing all pending updates

Sometimes the delayed update of bindings in WPF gets in your way. This is how you can force all pending Dispatcher things to run NOW:

public static void DoEvents()
{
  DispatcherFrame frame = new DispatcherFrame();
  Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Background,
     new DispatcherOperationCallback(ExitFrame), frame);
  Dispatcher.PushFrame(frame);
}

public static object ExitFrame(object f)
{
  ((DispatcherFrame)f).Continue = false;
  return null;
}