ColumnBase.ReadOnly Property

Gets or sets whether the column’s values cannot be changed by an end-user. This is a dependency property.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v19.1.Core.dll

Declaration

C#

[DefaultValue(false)]
public bool ReadOnly { get; set; }

VB.NET

<DefaultValue(False)>
Public Property ReadOnly As Boolean

Property Value

Type	Default	Description
Boolean	**false**	true to prevent an end-user from changing the column’s values; otherwise, false.

Remarks

If the column’s ReadOnly property is set to true, its cell values cannot be modified by end-users. In this instance, cell editors can be invoked, but end-users can only select and copy their values. However, setting this property to true doesn’t prevent cell values to be changed in code using the GridControl.SetCellValue method.

To learn more, see Data Editing and Validation and Modify Cell Values.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the ReadOnly property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-implement-drag-and-drop-between-gridcontrols-t566656/CS/MainWindow.xaml#L17

<dxg:GridControl.Columns>
    <dxg:GridColumn FieldName="Name" ReadOnly="True"/>
    <dxg:GridColumn FieldName="Department" ReadOnly="True"/>

how-to-implement-drag-and-drop-between-the-gridcontrol-and-other-controls-t566741/CS/MainWindow.xaml#L28

<dxg:GridControl.Columns>
    <dxg:GridColumn FieldName="ID" ReadOnly="True"/>
    <dxg:GridColumn FieldName="Name" ReadOnly="True"/>

how-to-implement-drag-and-drop-between-the-gridcontrol-and-the-listboxedit-t566433/CS/MainWindow.xaml#L17

<dxg:GridControl Name="gridControl">
    <dxg:GridColumn FieldName="ID" ReadOnly="True"/>
    <dxg:GridColumn FieldName="Name" ReadOnly="True"/>

how-to-customize-drop-marker-t568780/CS/MainWindow.xaml#L18

<dxg:GridControl.Columns>
    <dxg:GridColumn FieldName="Name" ReadOnly="True"/>
    <dxg:GridColumn FieldName="Department" ReadOnly="True"/>

how-to-manually-control-drag-and-drop-in-the-gridcontrol-e3921/CS/MainWindow.xaml#L12

<dxg:GridControl.Columns>
    <dxg:GridColumn FieldName="Name" ReadOnly="True"/>
    <dxg:GridColumn FieldName="Department" ReadOnly="True"/>