public MainWindow()
        {
            InitializeComponent();
            settingsw = new Settings();
            observerHandler = new ObervHandler();

            observerHandler.musikUpdateEvent += HandOnMusikUpdateEvent;
            observerHandler.playQueueUpdateEvent += ObserverHandlerOnPlayQueueUpdateEvent;
            observerHandler.VolumeUpdateEvent += ObserverHandlerOnVolumeUpdateEvent;
            observerHandler.getIPEvent1 += ObserverHandlerOnGetIpEvent1;
            observerHandler.getPositionEvent += ObserverHandlerOnGetPositionEvent;
            observerHandler.transportStateEvent += ObserverHandlerOnTransportStateEvent;

            dgPlayQueue.ItemsSource = playqueue;
            dgMusikindex.ItemsSource = musikindex;
            dgPlayQueue.IsReadOnly = true;
            dgMusikindex.IsReadOnly = true;
        }
 private void BtnRescan_OnClick(object sender, RoutedEventArgs e)
 {
     observerHandler = null;
     observerHandler = new ObervHandler();
 }