ArcGIS Pro 2.9 API Reference Guide
OnAddToMap Method

ArcGIS.Desktop.Mapping Namespace > IMappableItem Interface : OnAddToMap Method
Overload List
OverloadDescription
Add the item to the map.  
Add the item to the map or groupLayer at the specified index.  
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

See Also

Reference

IMappableItem Interface
IMappableItem Members