ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / Map Class / SelectionCount Property

SelectionCount Property (Map)
Gets the number of rows and features selected in the map.
Syntax
public int SelectionCount {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also