Changes the ShowNavigationItemController.ShowNavigationItemAction's selected item to the specified one.
A ViewShortcut object that specifies a View which has a corresponding ShowNavigationItemAction's item.
This method is used by the ShowNavigationItemController to change the ShowNavigationItemAction's selected item to the appropriate one when the active View is changed. The ShowNavigationItemController tracks the active View changes, so you do not have to do any additional programming. However, if you need to perform custom actions when this method is called, or want to perform the change of the selected item in a custom way, handle the ShowNavigationItemController.CustomUpdateSelectedItem event.