public MainWindow() {
InitializeComponent();
#if DEBUG
if (Debugger.IsAttached) {
UpdateManager.InitUpdateManagerForTests();
}
#endif
System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += OnTick;
dispatcherTimer.Interval = TimeSpan.FromSeconds(1);
dispatcherTimer.Start();
}