Connecting a connection to another connection

[Tom]

Hello Telerik staff,

First of all, allow me to thank you for all the help your team has provided me. After implementing custom shapes in my RadDiagram, I discovered that I require to create a connection that allows me to link other connections to it (please, see attached image). I have perused the forum and the documentation, but I have not found any clue that could lead me to a solution.

Thank you very much.

[Nadya | Tech Support Engineer]

Hello, Tom,

Thank you for the feedback! I am really glad to hear that we help you achieve your goals.

By default, when you create a connection you should specify the Source and Target properties which expects an ElementShape to be passed. You can achieve your requirement by adding an additional shape and set its Visibility to Collapsed. Please refer to the following code snippet. I have attached my test project as well.

public RadForm1()
{
    InitializeComponent();
    RadDiagramConnection polylineConnection = new RadDiagramConnection() { Name = "connection1" };
    polylineConnection.Source = this.radDiagram1.Shapes[0];
    polylineConnection.Target = this.radDiagram1.Shapes[1];
    polylineConnection.ConnectionType = Telerik.Windows.Diagrams.Core.ConnectionType.Polyline;
    radDiagram1.AddShape(polylineConnection);

    RadDiagramConnection polylineConnection2 = new RadDiagramConnection() { Name = "connection1" };
    polylineConnection2.Source = this.radDiagram1.Shapes[2];
    polylineConnection2.Target = this.radDiagram1.Shapes[3];
    this.radDiagram1.Shapes[3].Visibility = ElementVisibility.Collapsed;
    polylineConnection2.ConnectionType = Telerik.Windows.Diagrams.Core.ConnectionType.Polyline;
    radDiagram1.AddShape(polylineConnection2);
}

I hope this helps. Let me know if you have other questios.

Regards,
Nadya
Progress Telerik