ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMAviationArrow Class / ArrowLength Property

ArrowLength Property
Gets or sets the line length for the arrow, internally units will always be of type points.
Syntax
public double ArrowLength {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.8 or higher.
See Also