var diagram = $("#diagram").getKendoDiagram();
var connId = diagram.connections[i].id;
How can I delete a connection present in between two shapes in Kendo Diagram. I can get id of that connection and from/to it is connected.
You can delete a connection in the diagram by passing its object to the diagram.remove function. Like.
var diagram = $("#diagram").getKendoDiagram();
var conn = diagram.connections[0];
diagram.remove(conn);
Example is at https://dojo.telerik.com/IBAlIXov