I met a problem when deveoping a photo viewer application. I use ListBox to Show Images, which is contained in a ObservableCollection. I bind the ListBox's ItemsSource to the ObservableCollection.I met a problem when deveoping a photo viewer a
I met a problem when deveoping a photo viewer application. I use ListBox to Show Images, which is contained in a ObservableCollection. I bind the ListBox's ItemsSource to the ObservableCollection.I met a problem when deveoping a photo viewer a