ImageGear .NET v25.1 - Updated
Thumbnail Scrolling
User Guide > How to Work with... > Common Operations > Viewing > Viewing with WPF > Controls for XAML Application Development > Thumbnail Control > Thumbnail Scrolling

The scrollbar can be scrolled manually with the mouse or by using the Page Up and Page Down keys to scroll up or down a page of thumbnail items. You can use the following ImGearThumbnailList methods to programmatically scroll the thumbnails items: ScrollToFirstItem, ScrollToLastItem, ScrollToNextPage, ScrollToPreviousPage, ScrollToNextBand, and ScrollToPreviousBand. The control also contains commands for these which can be used in XAML. You can use the ImGearThumbnailList ScrollDirection method to specify whether thumbnail items are oriented and scrolled horizontally or vertically.

Note that because of a bug in the MS ListBox, the ScrollIntoView(object item) method inherited from ListBox does not work with a virtualizing panel, and the ScrollIntoView(int index) method should be used instead.