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DiagramItem.Key Property

Specifies the key value of the item.

Namespace: DevExpress.Web.ASPxDiagram

Assembly: DevExpress.Web.ASPxDiagram.v20.2.dll

Declaration

public object Key { get; }
Public ReadOnly Property Key As Object

Property Value

Type Description
Object

The key value.

Remarks

<dx:ASPxDiagram ID="Diagram" runat="server" Width="100%" Height="600px"
    NodeDataSourceID="DepartmentDemoDataSource" OnNodeDataBound="Diagram_NodeDataBound" >
    <Mappings>
        <Node Key="ID" ParentKey="ParentID" Text="DepartmentName" />
    </Mappings>
    <SettingsToolbox>
        <Groups>
            <dx:DiagramToolboxGroup CustomCategoryName="Departments" DisplayMode="Texts" />
        </Groups>
    </SettingsToolbox>
</dx:ASPxDiagram>
protected void Page_Load(object sender, EventArgs e) {
    if(!IsPostBack) {
        Diagram.CustomShapes.AddRange(GetDepartmentShapes());
    }
}
static IEnumerable<DiagramCustomShape> GetDepartmentShapes() {
    return DepartmentDataProvider.GetDepartments().Select(d =>
        new DiagramCustomShape {
            Category = "Departments",
            DefaultText = d.DepartmentName,
            Type = "dep" + d.ID,
            BaseType = DiagramShapeType.Rectangle,
        }
    );
}
protected void Diagram_NodeDataBound(object sender, DiagramNodeEventArgs e) {
    e.Node.Type = "dep" + e.Node.Key;
}
See Also