/// <summary> /// Scroll a ScrollViewer vertically by a given offset. /// </summary> /// <param name="viewer">The ScrollViewer.</param> /// <param name="offset">The vertical offset to scroll.</param> private static void ScrollByVerticalOffset(ScrollViewer viewer, double offset) { Debug.Assert(viewer != null, "viewer should not be null!"); offset += viewer.VerticalOffset; offset = Math.Max(Math.Min(offset, viewer.ExtentHeight), 0); viewer.ScrollToVerticalOffset(offset); }
/// <summary> /// Scroll a ScrollViewer vertically by a given offset. /// </summary> /// <param name="viewer">The ScrollViewer.</param> /// <param name="offset">The vertical offset to scroll.</param> private static void ScrollByVerticalOffset(ScrollViewer viewer, double offset) { Debug.Assert(viewer != null, "viewer should not be null!"); offset += viewer.VerticalOffset; offset = Math.Max(Math.Min(offset, viewer.ExtentHeight), 0); #if WIN81 viewer.ChangeView(null, offset, null); #else viewer.ScrollToVerticalOffset(offset); #endif }