TdxCustomTreeView.OnNodeStateChanged Event
Allows you to respond to a node‘s checkbox state change.
#Declaration
property OnNodeStateChanged: TdxTreeViewNodeEvent read; write;
#Remarks
This event occurs every time a node’s checkbox state changes.
Note
A Tree View displays node checkboxes only if the Tree View’s Options
Refer to the TdxTreeViewNodeEvent type description for information on available options.