OptionsLayoutTreeList.RemoveOldColumns Property
Gets or sets whether the columns that exist in a layout when it’s restored, but that don’t exist in the current control, should be discarded or added to the control.
Namespace: DevExpress.XtraTreeList
Assembly: DevExpress.XtraTreeList.v23.2.dll
NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList
Declaration
[DefaultValue(false)]
[DXCategory("Columns")]
[XtraSerializableProperty]
public bool RemoveOldColumns { get; set; }Property Value
| Type | Default | Description |
|---|---|---|
| Boolean | false | true to discard the columns that exist in the layout being restored, but don’t exist in the current control; false to add these columns to the control. |
Property Paths
You can access this nested property as listed below:
| Object Type | Path to RemoveOldColumns |
|---|---|
| TreeList |
|
Remarks
This option affects how the control’s layout is restored. If it’s set to true, the columns that exist in the layout being loaded, but do not exist in the current control, will not be re-created. Otherwise, these columns will be added to the control.