BaseColumn.IsReadOnlyBinding Property
Gets or sets the binding that determines a cell’s read-only state.
Namespace: DevExpress.Xpf.Grid
Assembly: DevExpress.Xpf.Grid.v21.2.Core.dll
Declaration
Property Value
| Type | Default | Description |
|---|---|---|
| BindingBase | null |
The binding that associates the read-only state of cells with a property in a data source. |
Remarks
The code sample below sets cells in the Progress column as read-only if a task has subtasks:
<dxg:TreeListControl x:Name="treeList"
ItemsSource="{Binding Path=EditableDataSource, Source={StaticResource employeeTasks}}">
<dxg:TreeListControl.Columns>
<dxg:TreeListColumn FieldName="Name" Header="Task"/>
<dxg:TreeListColumn FieldName="Employee" Header="Assignee"/>
<dxg:TreeListColumn FieldName="Status" Header="Progress"
IsReadOnlyBinding="{Binding HasSubtasks}"/>
<dxg:TreeListColumn FieldName="StartDate"/>
<dxg:TreeListColumn FieldName="DueDate"/>
</dxg:TreeListControl.Columns>
<dxg:TreeListControl.View>
<dxg:TreeListView x:Name="view" KeyFieldName="ID" ParentFieldName="ParentID"/>
</dxg:TreeListControl.View>
</dxg:TreeListControl>
public class EmployeeTask: INotifyPropertyChanged {
public int ID { get; set; }
public int ParentID { get; set; }
public string Name { get; set; }
public string Employee { get; set; }
public DateTime StartDate { get; set; }
public DateTime DueDate { get; set; }
public int Status { get; set; }
public bool HasSubtasks { get; }
// ...
}
Customize Appearance Settings of Read-only Cells
To change the appearance settings of read-only cells, use the ColumnBase.CellStyle property with a trigger. Use the LightweightCellEditor as the style’s target type.
<dxg:TreeListColumn.CellStyle>
<Style TargetType="dxg:LightweightCellEditor">
<Style.Triggers>
<Trigger Property="ReadOnly" Value="True">
<Setter Property="Background" Value="LightGray" />
</Trigger>
</Style.Triggers>
</Style>
</dxg:TreeListColumn.CellStyle>
For more information, refer to Disable Editing.
See Also
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