ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMLabelClass Class / ID Property

ID Property (CIMLabelClass)
Gets or sets the ID of the label class. This property is only used in the context of annotation.
Syntax
public int ID {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also