VirtualizingStackPanel.VirtualizationMode Attached Property
Gets or sets how a panel in an ItemsControl virtualizes its child items.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
<object VirtualizingStackPanel.VirtualizationMode="VirtualizationMode" .../>
By default, a VirtualizingStackPanel creates an item container for each visible item and discards it when it is no longer needed (such as when the item is scrolled out of view). When an ItemsControl contains a lot of items, the process of creating and discarding item containers can negatively affect performance. When is set to Recycling, the VirtualizingStackPanel reuses item containers instead of creating a new one each time.
The following example shows the data used in the previous example.