SAP ABAP Program LHRNOA03F18 (Drag and drop) is using

• Class (3)
• Data Element (3)
• Class Method (2)
• Table (1)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_ALV_TREE_BASE	Basis Class ALV Tree Control
2	Class	CL_DRAGDROPOBJECT	Drag&Drop Data Object
3	Class	CL_GUI_ALV_TREE	ALV Tree Control