DiagramDataBindingBehaviorBase.KeyMember Property

Specifies the name of the data field that identifies the data item. This is a dependency property.

Namespace : DevExpress.Xpf.Diagram

Assembly : DevExpress.Xpf.Diagram.v25.2.dll

NuGet Package : DevExpress.Wpf.Diagram

Declaration

• C#
• VB.NET

public string KeyMember { get; set; }

Public Property KeyMember As String

Property Value

A System.String value.

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Remarks

Use the DiagramDataBindingBehaviorBase.KeySelector property to define a custom logic for choosing the data field that identifies the data item (e.g., when binding to data with multiple types of data objects).

Related GitHub Examples

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

• XAML

wpf-diagram-use-diagramorgchartbehavior-to-generate-diagram-from-collection/CS/OrgChartBindingExample/MainWindow.xaml#L14

<dxmvvm:Interaction.Behaviors>
    <dxdiag:DiagramOrgChartBehavior ItemsSource="{Binding Contacts}" KeyMember="Id" ParentMember="ParentId">
        <dxdiag:DiagramOrgChartBehavior.TemplateDiagram>

wpf-diagram-use-diagramdatabindingbehavior-to-generate-diagram-from-collection/CS/DiagramDataBindingBehavior/MainWindow.xaml#L13

<dxmvvm:Interaction.Behaviors>
    <dxdiag:DiagramDataBindingBehavior ItemsSource="{Binding ClassSource}" ConnectorsSource="{Binding ConnectionSource}" ConnectorFromMember="ConnectedFrom" ConnectorToMember="ConnectedTo" KeyMember="ClassName" LayoutKind="Sugiyama" ClearExistingItems="False" GenerateItem="DiagramDataBindingBehavior_GenerateItem" GenerateConnector="DiagramDataBindingBehavior_GenerateConnector">
        <dxdiag:DiagramDataBindingBehavior.TemplateDiagram>

wpf-diagram-bind-item-positions-to-source-objects/CS/dxSample/MainWindow.xaml#L24

ItemsSource="{Binding Items}"
KeyMember="Id">
<dxdiag:DiagramDataBindingBehavior.TemplateDiagram>

See Also

DiagramDataBindingBehaviorBase Class

DiagramDataBindingBehaviorBase Members

DevExpress.Xpf.Diagram Namespace