/// <summary>
 /// Determines whether the given element is ignored on drag start (<see cref="DragDrop.DragSourceIgnore"/>).
 /// </summary>
 /// <param name="element">The given element.</param>
 /// <returns>Element is ignored or not.</returns>
 public static bool IsDragSourceIgnored(this UIElement element)
 {
     return(element != null && DragDrop.GetDragSourceIgnore(element));
 }