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.v24.1.dll

NuGet Package: DevExpress.Wpf.Diagram

Declaration

C#

public string KeyMember { get; set; }

VB.NET

Public Property KeyMember As String

Property Value

Type	Description
String	A System.String value.

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

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