I am new to Silverlight. I have a xaml which contains a picker button. On click, its calls a 'Show' function. The Showfunction is handled in the xaml.cs file. IThe showfunction displays a RadContextMenu. A listbox is added to the RadContextMenu. The RadContextMenu/Listbox does not contain a vertical scrollbar. How do I add a scrollbar? And what do I add it to, Listbox or RadContextMenu?