private void MainWindow_Loaded(object sender, RoutedEventArgs e)
 {
     try
     {
         DataContext = _viewModel = new PlayerViewModel();
         AddCheckboxes();
     }
     catch (Exception)
     {
         // ignored
     }
 }
 public Event(String format, PlayerViewModel player)
 {
     _format = format;
     Player  = player;
 }