ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMNestedLegendItem Class / AutoLayout Property

AutoLayout Property
Gets or sets a value indicating whether to automatically layout the legend item.
Syntax
public bool AutoLayout {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also