TreeListOptionsBehavior.UnboundColumnExpressionEditorMode Property

Gets or sets the type of unbound expression editor that end-users can utilize to modify expressions for unbound columns owned by this Tree List control.

Namespace : DevExpress.XtraTreeList

Assembly : DevExpress.XtraTreeList.v25.2.dll

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

csharp

[DefaultValue(ExpressionEditorMode.Default)]
[XtraSerializableProperty]
public virtual ExpressionEditorMode UnboundColumnExpressionEditorMode { get; set; }

<DefaultValue(ExpressionEditorMode.Default)>
<XtraSerializableProperty>
Public Overridable Property UnboundColumnExpressionEditorMode As ExpressionEditorMode

Property Value

Type	Default	Description
ExpressionEditorMode	Default

An ExpressionEditorMode enumeration value that specifies the type of unbound expression editor that end-users can utilize to modify expressions for unbound columns owned by this Tree List control.

Available values:

Name	Description
Default

Editor version depends on the WindowsFormsSettings.DefaultSettingsCompatibilityMode value. If its value is v16 or less, it is the legacy version; otherwise, the new version is used.

| | Standard |

Specifies a legacy version of the Expression editor.

| | AutoComplete |

Specifies a new version of the Expression editor.

Property Paths

You can access this nested property as listed below:

Object Type	Path to UnboundColumnExpressionEditorMode
TreeList

.OptionsBehavior .UnboundColumnExpressionEditorMode

Remarks

If the TreeListColumn.ShowUnboundExpressionMenu setting is enabled, end-users can right-click this unbound column‘s header and click the “Expression Editor…” option.

This will invoke the Unbound Expression Editor dialog, with which end-users can modify an expression used to calculate cell values for this column. The UnboundColumnExpressionEditorMode property specifies the type of this dialog.

AutoComplete
Standard
Default

The UnboundColumnExpressionEditorMode property affects the dialog your end-users utilize. However, you will always work with the legacy dialog at design time.

See the Expression Editor article to learn about all differences between the expression editor types.