private void CheckStoringenVisible()
 {
     if (_vm.StoringenVisible && !_animationPlayed)
     {
         _animationPlayed = true;
         StoringenVisible.Begin();
     }
 }
 void _vm_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
 {
     if (e.PropertyName == "StoringenVisible")
     {
         if (_vm.StoringenVisible)
         {
             StoringenVisible.Begin();
         }
     }
     else if (e.PropertyName == "InMyStations")
     {
         if (_vm.InMyStations)
         {
             (ApplicationBar.MenuItems[1] as ApplicationBarMenuItem).Text      = AppResources.StationTijdenDeleteButton;
             (ApplicationBar.Buttons[1] as ApplicationBarIconButton).IsEnabled = false;
         }
         else
         {
             (ApplicationBar.MenuItems[1] as ApplicationBarMenuItem).Text = AppResources.StationTijdenAddButton;
         }
     }
 }