How can I detect node is in visible diagram area?

[Youngjin Kim]

Hi...

I'd like to scroll diagram using View.ScrollToNode(Node) method only when the node is out of the visible area. How can I detect if the node is out of visible diagram area?

Thanks in advance.

[Pandi Murugan A]

Hi Youngjin,

Thanks for using Syncfusion products.

We suggest you to use Diagram's Origin, ClientRectangle and Node's Bounds to achieve your requirement. Please refer the below code snippet.

[C#]
Node node = this.diagram1.Controller.SelectionList[0];
if (node.BoundingRectangle.Right < diagram1.Origin.X || node.BoundingRectangle.Bottom < diagram1.Origin.Y || (node.BoundingRectangle.Left - diagram1.Origin.X) > diagram1.ClientRectangle.Width || (node.BoundingRectangle.Bottom - diagram1.Origin.Y) > diagram1.ClientRectangle.Height)
MessageBox.Show('Invisible'); 
else
MessageBox.Show('Visible');

Please let me know if you have any concerns.

Regards,
Pandi Murugan A

[Youngjin Kim]

Thanks a lot.
It works fine for me.

[Pandi Murugan A]

Hi Youngjin,

Thanks for the update.

Please let me know if you have any other concerns.

Regards,
Pandi Murugan A