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

DashTemplate Property
Gets or sets the distance for each dash and gap. There can be multiple dash and gap values to form a complex pattern.
Syntax
public double[] DashTemplate {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also