abstract IsLiveFiltering : Nullable<bool> with get, set
Type: System.Nullable(Boolean) true if filtering data in real time is enabled; false if live filtering is not enabled; a null reference (Nothing in Visual Basic) if it cannot be determined whether the collection view implements live filtering.
Your CollectionView can implement live filtering itself, or you can delegate live filtering to another object, such as the underlying collection. If you delegate live filtering, 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 filtering, set the IsLiveFiltering property to the known value. Otherwise, set IsLiveFiltering to a null reference (Nothing in Visual Basic).
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)