ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMProjectItem Class / Alias Property

Alias Property (CIMProjectItem)
Gets or sets an identifier for this item that the user provides and can be displayed instead of the Name.
Syntax
public string Alias {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.9 or higher.
See Also