ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping.Controls Namespace / MapControl Class / SpatialReference Property

SpatialReference Property (MapControl)
Gets the spatial reference of the map control.
Syntax
public SpatialReference SpatialReference {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also