ArcObjects Library Reference (GeoDatabase)  

IFIDSetOperator Interface

Provides access to members that control the collection of feature ids, and to combine feature id collections.

Product Availability

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

Members

Description
Method Difference Returns the feature IDs that are not in the collection, but are present in the input collection.
Method Intersect Combines the feature IDs that are common to both collections into a single collection.
Method SymmetricDifference Combines the feature IDs that are in one of the collections, but not both collections, into a single collection.
Method Union Combines all the feature IDs that are in one or the other collection into a single collection.

CoClasses that implement IFIDSetOperator

CoClasses and Classes Description
FIDSet Esri FID Set object.
RecordNumberSet A collection of record numbers. Record number sets are used in selections with file based data.