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.v19.2.dll

Declaration

C#

[DefaultValue(false)]
[XtraSerializableProperty]
[DXCategory("Columns")]
public bool RemoveOldColumns { get; set; }

VB.NET

<DefaultValue(False)>
<XtraSerializableProperty>
<DXCategory("Columns")>
Public Property RemoveOldColumns As Boolean

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:

Library	Object Type	Path to RemoveOldColumns
WinForms Controls	GanttControl	.OptionsLayout.RemoveOldColumns
	ResourcesTree	.OptionsLayout.RemoveOldColumns
	TreeList	.OptionsLayout.RemoveOldColumns
Reporting	XRDesignFieldList	.OptionsLayout.RemoveOldColumns
	XRDesignReportExplorer	.OptionsLayout.RemoveOldColumns

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.