Gets or sets a value that indicates whether grouping data in real time is enabled.
Assembly: WindowsBase (in WindowsBase.dll)
Your CollectionView can implement live grouping itself, or you can delegate live grouping to another object, such as the underlying collection. If you delegate live grouping, the CollectionView might not have control over whether it is enabled. Your CollectionView must accept the behavior of the object to which it delegates. If your CollectionView knows whether the delegate object supports live grouping, set the property to the known value. Otherwise, set to null.
Available since 4.5