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IFIDSetOperator.Union Method (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > Geodatabase > ESRI.ArcGIS.GeoDatabase > Interfaces > IF > IFIDSetOperator Interface > IFIDSetOperator.Union Method
ArcGIS Developer Help

IFIDSetOperator.Union Method

Combines all the feature IDs that are in one or the other collection into a single collection.

[Visual Basic .NET]
Public Function Union ( _
    ByVal otherFIDSet As IFIDSet _
) As IFIDSet
[C#]
public IFIDSet Union (
    IFIDSet otherFIDSet
);
[C++]
HRESULT Union(
  IFIDSet* otherFIDSet
);
[C++]
Parameters
otherFIDSet [in]

otherFIDSet is a parameter of type IFIDSet*

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

See Also

IFIDSetOperator Interface