How to prevent nodes from moving to a negative index when nudging in WPF Diagram (SfDiagram)?

In the WPF Diagram, you can prevent nodes from moving to a negative index when nudging by handling the NodeChangedEvent. In this event, update the BoundaryConstraints to PositiveInfinity to ensure that nodes do not move to negative positions.

Code Snippet:

//Here diagram is the instance of the SfDiagram

(diagram.Info as IGraphInfo).NodeChangedEvent += MainWindow_NodeChangedEvent;

private void MainWindow_NodeChangedEvent(object sender, ChangeEventArgs<object, NodeChangedEventArgs> args)
{
    NodeViewModel node = args.Item as NodeViewModel;

    INodeInfo nodeinfo = node.Info as INodeInfo;

    args.BoundaryConstraints = new Rect(0 + (nodeinfo.Bounds.Width / 2), 0 + (nodeinfo.Bounds.Height / 2), double.PositiveInfinity, double.PositiveInfinity);
} 

Conclusion
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