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| ArcObjects Help for .NET developers > ArcObjects namespaces > Carto > ESRI.ArcGIS.Carto > Interfaces > IF > IFeatureIDSet Interface > IFeatureIDSet.Contains Property (ArcObjects .NET 10.5 SDK) | 
Indicates if the given feature id is in the set.
[Visual Basic .NET] Public Function get_Contains ( _ ByVal FID As Integer _ ) As Boolean
[C#] public bool get_Contains ( int FID );
[C++]
HRESULT get_Contains(
  long FID,
  VARIANT_BOOL* Contains
);
[C++]
Parameters FID [in] FID is a parameter of type long Contains [out, retval] Contains is a parameter of type VARIANT_BOOL