Add horizontal line to a grid

[rohit]

hi,
How do I add a horizontal line to a WODiagram grid. This horizontal line should move down automatically when i add any kind of block above the line. I am using C#. Kindly help me out with this.

Thank you

[Pandi Murugan A]

Hi Rohit,

Thanks for using Syncfusion products.

We suggest you to change the PinPoint of Line based on bounding rectangle of the block(node)which is added to the diagram. Please refer the below code snippet.

[C#]

//Node Collection Changed event

 void EventSink_NodeCollectionChanged(CollectionExEventArgs evtArgs)
        {
            if (evtArgs.ChangeType == CollectionExChangeType.Insert)
            {
                if (evtArgs.Element != null)
                {

                    Node node = (Node)evtArgs.Element;
//Get the Line
                    Node lineNode = diagram1.Model.GetChildByName("MyLine");
//Check the BoundingRectangle's of Line and Node(Block)
                    if (lineNode.BoundingRectangle.Top < node.BoundingRectangle.Bottom)
                    {
//Change the PinPoint of Line
                        lineNode.PinPoint = new PointF(lineNode.PinPoint.X,node.BoundingRectangle.Bottom + 20);
                    }
                }
            }
        }

For your convenience, we have created a simple sample to demonstrate this and the same can be downloaded from the below link.

FSample-776916365.zip

Kindly try the above sample and let me know if this helps.

Regards,
Pandi Murugan A