ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMGeometricEffectDashes Class / LineDashEnding Property

LineDashEnding Property
Gets or sets the setting which determines how the strokes with dash patterns and other patterns (pictures, placement effects) are handled at the end points of the line geometry's segments.
Syntax
public LineDashEnding LineDashEnding {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also