public static void PageDown(this ScrollViewer viewer) { if (viewer == null) { throw new ArgumentNullException("viewer"); } ScrollViewerExtensions.ScrollByVerticalOffset(viewer, viewer.ViewportHeight); }
public static void LineDown(this ScrollViewer viewer) { if (viewer == null) { throw new ArgumentNullException("viewer"); } ScrollViewerExtensions.ScrollByVerticalOffset(viewer, 16.0); }