ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMHorizontalBarLegendItem Class / LineLength Property

LineLength Property (CIMHorizontalBarLegendItem)
Gets or sets the line length for a legend item leader.
Syntax
public double LineLength {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 3.0 or higher.
See Also