TreeList.ShowUnboundExpressionEditor(TreeListColumn) Method

Invokes an Expression Editor that enables editing an expression for the specified unbound column.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v21.1.dll


public virtual void ShowUnboundExpressionEditor(
    TreeListColumn column


Name Type Description
column TreeListColumn

A TreeListColumn that represents an unbound column whose expression will be edited in the Expression Editor.


At runtime, an end-user can edit expressions for unbound columns via an Expression Editor modal form. This editor can be opened:

The TreeList.UnboundExpressionEditorCreated event fires in response to creating the Expression Editor. You can handle this event to prevent the editor from being displayed in specific instances, change the editor form’s settings, etc.

See Also