How to: Improve the Scrolling Performance of a ListBox
Updated: February 2009
If a ListBox contains many items, the user interface response can be slow when a user scrolls the ListBox by using the mouse wheel or dragging the thumb of a scrollbar. You can improve the performance of the ListBox when the user scrolls by setting the VirtualizingStackPanelVirtualizationMode attached property to Recycling.
The following example shows the data that the previous example uses.