TreeListRowDraggingBuilder.Handle Method

Name	Parameters	Description
Handle(JS)	value	Specifies a CSS selector (ID or class) for the element(s) that should act as the drag handle(s). Mirrors the client-side handle option.
Handle(String)	value	Specifies a CSS selector (ID or class) for the element(s) that should act as the drag handle(s). Mirrors the client-side handle option.