Contains(MapMember) Method
Determines if records from the specified mapMember are in the MapMemberIDSet.
Get OIDS from a SelectionSet for a given MapMember
if (selSet.Contains(us_zips_layer))
{
var oids = selSet[us_zips_layer];
}
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3.4 or higher.