ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMProfileOIS Class / IsPrimary Property
Version

IsPrimary Property
Gets or sets a value indicating whether the surface is primary. If surface is primary it can't be hidden and terrain and obstacles will be drawn based on the primary surface.
Syntax
public bool IsPrimary {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also