TCustomTreeView.OnDeletion property

Declaration

property OnDeletion: TTVExpandedEvent read FOnDeletion write FOnDeletion;

Description

OnDeletion is a TTVExpandedEvent property with the event handler signalled when a tree node is deleted from the node tree in the Items property. It is signalled (when assigned) from the Delete method. It occurs when a TTreeNode instance in Items is freed.

Arguments to handler routine include:

Sender

The object instance (TCustomTreeView) for the event notification.

Node

The TTreeNode instance which is being deleted.

OnDeletion occurs after the States property in the tree view has been updated to include nsDeleting, and before the TTreeNode instance is destroyed.

See also

• Delete
• States
• Items
• Destroy