aspnet-devexpress-dot-web-dot-aspxdiagram-0161bf43.md
A diagram node.
Namespace : DevExpress.Web.ASPxDiagram
Assembly : DevExpress.Web.ASPxDiagram.v25.2.dll
NuGet Package : DevExpress.Web
public class DiagramNode :
DiagramItem
Public Class DiagramNode
Inherits DiagramItem
The following members return DiagramNode objects:
When the ASPxDiagram control is bound to a data source (NodeDataSource), the control creates a DiagramNode object and raises the NodeDataBound event for every data item in the source.
You can access the processed DiagramNode object via the event argument’s Node property. Use the object’s properties to customize the node before it is finally rendered.
<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;
}
Class SurroundingClass
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
If Not IsPostBack Then
Diagram.CustomShapes.AddRange(GetDepartmentShapes())
End If
End Sub
Private Shared Function GetDepartmentShapes() As IEnumerable(Of DiagramCustomShape)
Return DepartmentDataProvider.GetDepartments().[Select](Function(d) New DiagramCustomShape With {
.Category = "Departments",
.DefaultText = d.DepartmentName,
.Type = "dep" & d.ID,
.BaseType = DiagramShapeType.Rectangle
})
End Function
Protected Sub Diagram_NodeDataBound(ByVal sender As Object, ByVal e As DiagramNodeEventArgs)
e.Node.Type = "dep" & e.Node.Key
End Sub
End Class
Object DiagramItem DiagramNode
See Also