ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMLegendItem Class / GroupFilter Property

GroupFilter Property
Gets or sets a value specifying which legend groups are displayed.
Syntax
public int[] GroupFilter {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 3.0 or higher.
See Also