void Model_NotifyProgress(object sender, ExtendedEventArgs <Action> e)
{
Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Background, new Action(() =>
{
e.Data();
}));
}
void Model_CountUpdated(object sender, ExtendedEventArgs <Action> e)
{
Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
e.Data();
this.Refresh();
}));
Application.Current.DoEvents();
}