ListCollectionView.Contains Method
.NET Framework 4.5
Returns a value that indicates whether a given item belongs to the collection view.
Namespace: System.Windows.Data
Assembly: PresentationFramework (in PresentationFramework.dll)
This method does not make any assumptions about whether the item belongs to the underlying collection. If you know that the item belongs to the underlying collection, it is more efficient to call PassesFilter.
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)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.