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DetailDescriptorSelector Class

Enables you to select which detail descriptor to use in data dependent details.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v24.1.Core.dll

Declaration

public class DetailDescriptorSelector :
    MultiDetailDescriptorBase

Example

In this example, the DetailDescriptorSelector displays different details based on the master row’s content. Assign the default detail descriptor to the DetailDescriptorSelector.DefaultValue property and use DetailDescriptorTriggers to conditionally switch it to an another detail. This trigger has the Binding and Value properties which work similarly to corresponding properties in a standard WPF DataTrigger.

WPF Data Grid - Display Different Details Based on Master Row Data

View Example: Display Different Details Based on Data in the Master Row

<dxg:GridControl AutoGenerateColumns="AddNew" ItemsSource="{Binding Tasks}">
    <dxg:GridControl.DetailDescriptor>
        <dxg:DetailDescriptorSelector>
            <dxg:DetailDescriptorSelector.DefaultValue>
                <dxg:DataControlDetailDescriptor ItemsSourcePath="CompletedActions">
                    <dxg:GridControl AutoGenerateColumns="AddNew">
                        <dxg:GridControl.View>
                            <dxg:TableView ShowGroupPanel="False"/>
                        </dxg:GridControl.View>
                    </dxg:GridControl>
                </dxg:DataControlDetailDescriptor>
            </dxg:DetailDescriptorSelector.DefaultValue>
            <dxg:DetailDescriptorTrigger Binding="{Binding Succeed}" Value="False">
                <dxg:DataControlDetailDescriptor ItemsSourcePath="Errors">
                    <dxg:GridControl AutoGenerateColumns="AddNew">
                        <dxg:GridControl.View>
                            <dxg:TableView ShowGroupPanel="False"/>
                        </dxg:GridControl.View>
                    </dxg:GridControl>
                </dxg:DataControlDetailDescriptor>
            </dxg:DetailDescriptorTrigger>
        </dxg:DetailDescriptorSelector>
    </dxg:GridControl.DetailDescriptor>
    <dxg:GridControl.View>
        <dxg:TableView AutoWidth="True" ShowGroupPanel="False"/>
    </dxg:GridControl.View>
</dxg:GridControl>

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DetailDescriptorSelector class.

Note

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See Also