ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Editing.Attributes Namespace / Attribute Class / IsSubtype Property

IsSubtype Property
Gets whether this attribute is a subtype.
Syntax
public bool IsSubtype {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also