TBaseVirtualTree.Change Method

Central method called when a node's selection state changes.

procedure Change(Node: PVirtualNode); virtual;

The Change method is called to trigger the change notifcation chain. Depending on the sync and the update states of the tree as well as the ChangeDelay value either the application is directly notified about the change or a timer is started to accumulate several change events into one. 

BeginSynch, EndSynch, BeginUpdate, EndUpdate, ChangeDelay

TBaseVirtualTree Class