Gets the items in the MultiSelector that are selected.
Assembly: PresentationFramework (in PresentationFramework.dll)
If CanSelectMultipleItems is false, you cannot add more than one item to the collection. Attempts to do so will cause an exception.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2