How To Control the Number Of Connections That Can Be Drawn From / To the Port

This can be done using the port’s ConnectionsLimit property. ConnectionsLimit specifies the number of connections to be allowed. Default value is 10.

Syncfusion.Windows.Forms.Diagram.ConnectionPoint cp = new Syncfusion.Windows.Forms.Diagram.ConnectionPoint();

cp.ConnectionsLimit = 12;
Dim cp As New Syncfusion.Windows.Forms.Diagram.ConnectionPoint()

cp.ConnectionsLimit = 12