private static void TimePropertyChangedCallback(DependencyObject sender, DependencyPropertyChangedEventArgs arg) { if (sender != null && sender is TimeControl1) { TimeControl1 clock = sender as TimeControl1; clock.OnTimeUpdated((DateTime)arg.OldValue, (DateTime)arg.NewValue); } }
private static void ExecuteSpeak(object sender, ExecutedRoutedEventArgs arg) { TimeControl1 clock = sender as TimeControl1; if (clock != null) { clock.SpeakTheTime(); } }
private static void CanExecuteSpeak(object sender, CanExecuteRoutedEventArgs arg) { TimeControl1 clock = sender as TimeControl1; arg.CanExecute = (clock != null); }