A CloseOnClickEnum expression that specifies how the user can close the context
menu.
By default, the CloseOnClick property is
exCloseOnNonClickable, and it means that the context menu is closed once the
user clicks a regular item with no sub menus, check or radio buttons. Use te
CloseOnClick property to specify how the user can close the context menu. The Select
method returns the identifier of the last clicked item. Use the Item's CloseOnClick
property to specify a different way to close the menu when user clicks a
specified item.