ArcGIS Pro 3.1 API Reference Guide
ArcGIS.Core.Geometry Namespace / SpatialReference Class / IsUnknown Property
Version

IsUnknown Property (SpatialReference)
Gets if this is the unknown coordinate system.
Syntax
public bool IsUnknown {get;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.0 or higher.
See Also