ArcGIS Pro 2.6 API Reference Guide
ExtendFlags Enumeration

ArcGIS.Core.Geometry Namespace : ExtendFlags Enumeration
Extend flag options for use with the GeometryEngine.Extend function.
Syntax
Members
MemberDescription
Default By default, extension considers both ends of parts. The old ends remain and new points are added at the extended ends. The new points have attributes that are extrapolated from adjacent existing segments.
KeepEndAttributes If an extension is performed at an end, do not extrapolate the end-segment's attributes for the new point. Instead, make its attributes the same as the current end. Incompatible with esriNoAttributes.
NoEndAttributes If an extension is performed at an end, do not extrapolate the end-segment's attributes for the new point. Instead, make its attributes be empty. Incompatible with esriKeepAttributes.
NoExtendAtFrom Do not extend the 'from' end of any part.
NoExtendAtTo Do not extend the 'to' end of any part.
RelocateEnds If an extension is performed at an end, relocate the end point to the new position instead of leaving the old point and adding a new point at the new position.
Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         ArcGIS.Core.Geometry.ExtendFlags

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

ArcGIS.Core.Geometry Namespace