Hi Jinhong,
Thanks for your interest in Syncfusion products.
We suggest you to set the Node.EditStyle’s ‘DefaultHandleEditMode’
property to ‘None’ to disable the selection handle of a node. Please refer the
below code snippet.
Here is the code:
[C#]
LineConnector lcon = new
LineConnector(new
PointF(100,100), new
PointF(300,100));
//Disables the selection handler of line connector
lcon.EditStyle.DefaultHandleEditMode = HandleEditMode.None;
diagram1.Model.AppendChild(lcon);
Please let us know if you have any queries.
Regards,
Amsath