TreeList.UnboundExpressionEditorCreated Event

Fires after an Expression Editor has been created for an unbound column.

Namespace: DevExpress.XtraTreeList

Assembly: DevExpress.XtraTreeList.v23.2.dll

NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList

Declaration

C#

public event UnboundExpressionEditorEventHandler UnboundExpressionEditorCreated

VB.NET

Public Event UnboundExpressionEditorCreated As UnboundExpressionEditorEventHandler

Event Data

The UnboundExpressionEditorCreated event's data class is DevExpress.XtraTreeList.TreeListUnboundExpressionEditorEventArgs.

Remarks

The Expression Editor lets an end-user edit expressions for unbound columns. The Expression Editor can be invoked as described in the TreeListColumn.ShowUnboundExpressionMenu topic.

The UnboundExpressionEditorCreated event fires after the Expression Editor has been created, but before it’s displayed onscreen. You can handle it to complete the following tasks:

• prevent the editor from being displayed. Set the event’s ShowExpressionEditor parameter to false to hide the editor.
• customize the editor form’s settings. Use the event’s ExpressionEditorForm parameter to access these settings.