There is a boolean IsSelected
property (in the RadTreeViewItem
class) which controls whether an item is selected or not. Let me ask you according to your second question. Are you talking about a keyboard shortcut? If so there is no option for deselecting any item with the keyboard. You can only change the selection and the focus. If you are asking something different please elaborate more on your scenario.
All the best,
Pavel R. Pavlov
the Telerik team