ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMProjectItem Class / ID Property
Version

ID Property (CIMProjectItem)
Gets or sets the system assigned unique identifier of the project item.
Syntax
public string ID {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also