ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Framework.DragDrop Namespace / DragInfo Class / SourceCollection Property

SourceCollection Property
Gets the collection that the source ItemsControl is bound to.
Syntax
public IEnumerable SourceCollection {get;}
Remarks
If the control that initiated the drag is unbound or not an ItemsControl, this will be null.
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also