How do I programmatically group nodes in a diagram?

Programmatically group nodes in a diagram

You need to use the GroupCmd class, which will create a Group node and populate it with the list of nodes attached to the command. Here is a code sample that demonstrates how you can group the nodes that are selected in a diagram.

[C#]

//New Groupcmd to group nodes GroupCmd gcmd = new GroupCmd(); //Add the selected nodes to the GroupCmd gcmd.Nodes.Concat(this.diagramComponent.SelectionList); //Execute the GroupCmd this.diagramComponent.ExecuteCommand(gcmd); diagramComponent.Refresh();

[VB.NET]

'New Groupcmd to group nodes Dim gcmd As GroupCmd =  New GroupCmd() 'Add the selected nodes to the GroupCmd gcmd.Nodes.Concat(Me.diagramComponent.SelectionList) 'Execute the GroupCmd Me.diagramComponent.ExecuteCommand(gcmd) diagramComponent.Refresh()

Conclusion

I hope you enjoyed learning about how to programmatically group nodes in a diagram.

You can refer to WinForms Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our WinForms Diagram example to understand how to create and manipulate data.

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