2024-10-05WPF VirtualizingPanel.CacheLength="1" VirtualizingPanel.CacheLengthUnit="Item" c<ListBoxItemsSource="{BindingBooksCollection,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"SelectedIndex="{BindingImgIdx,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"VirtualizingPanel.IsVirtualizing=