ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / TOCDragData Interface
Members Version

TOCDragData Interface
Provides access to map member content dragged off the TOC.
Syntax
public interface TOCDragData 
Remarks
The public API only supports retrieving drag data for the TOC within the same Pro process. Check InProcess to determine if the drag was initiated within the same Pro process or not.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also