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

SpatialReference Property (SpatialReferenceChangedEventArgs)
Gets the selected SpatialReference
Syntax
public SpatialReference SpatialReference {get;}
Remarks
This property can be null if a change in the CoordinateSystemsControl UI results in no spatial reference being selected.
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also