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Add horizontal line to a grid

Thread ID:





97391 Nov 23,2010 09:43 AM Nov 29,2010 02:39 AM General Discussion 1
Tags: General Discussion
Asked On November 23, 2010 09:43 AM

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 [Syncfusion]
Replied On November 29, 2010 02:39 AM

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.


//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.


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

Pandi Murugan A


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