TTreeView.OnEditing property
Event handler signalled to determine whether the editor can be enabled for a tree node.
Declaration
property OnEditing:;Description
OnEditing is a
TTVEditingEvent property with the event
handler signalled to determine whether an editor can be enabled for a node on
the tree view control. OnEditing is signalled (when assigned) from the CanEdit
method, and occurs when the BeginEditing method is called. This can be in
response to a key down event handled for the tree view control, or when the
EditText method is called for a TTreeNode instance in Items.
Arguments to the event handler include:
- Sender
- The object instance (TCustomTreeView) for the event.
- Node
- The TTreeNode instance to be edited on the control.
- AllowEdit
- A Boolean variable argument which indicates whether the node editor can be enabled for the tree node. The handler routine can set AllowEdit to False to prevent the node editor from being enabled.
Use OnEdited to perform actions needed when editing has been completed for the node.
Use OnEditingEnd to perform actions needed when a tree node is disconnected from the node editor for the control.
This description is the one of ComCtrls.TCustomTreeView.OnEditing.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.