TreeList.ShowUnboundExpressionEditor(TreeListColumn) Method
Invokes an Expression Editor that enables editing an expression for the specified unbound column.
Namespace: DevExpress.XtraTreeList
Assembly: DevExpress.XtraTreeList.v23.2.dll
NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList
Declaration
Parameters
| Name | Type | Description |
|---|---|---|
| column | TreeListColumn | A TreeListColumn that represents an unbound column whose expression will be edited in the Expression Editor. |
Remarks
At runtime, an end-user can edit expressions for unbound columns via an Expression Editor modal form. This editor can be opened:
- via a context menu, if the TreeListColumn.ShowUnboundExpressionMenu option is enabled;
- by calling the ShowUnboundExpressionEditor method.
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.