Specifies the expansion of tree nodes within the Dropdown Tree.
Auto
- In desktop, the expand or collapse operation happens when you double-click the node, and in mobile devices it happens on single-tap.Click
- The expand or collapse operation happens when you perform single-click/tap on the pop-up item in both desktop and mobile devices.DblClick
- The expand or collapse operation happens when you perform a double-click/tap on the pop-up item in both desktop and mobile devices.None
- The expand or collapse operation will not happen when you perform single-click/tap or double-click/tap on the pop-up items in both desktop and mobile devices.