With RadPanelBar it is easy to add, remove or disable�items
at runtime.
You can get the clicked item from the event argument of the click
handler.�You can then get its parent item, and then add and remove child�items
to the Items collection of the�item and enable or disable
them.
Adding items at runtime is quite simple: just create a new instance of the
RadPanelItem and add it to the corresponding� Items
collection with the� AddItem() method. Similarly, to remove an
item, use the Remove() method.
To disable an item, simply set the� Enabled boolean property
of the menu item to� False.