Cannot remove nodes because of InEdges with name "helper"

Question

Hello,We do have problems with removing nodes on the ejDiagram.This happens when a user first tried to draw new edges to a node but the connecting is prevented in the "connectionChange"-event (by args.cancel = true, e.g. to avoid connecting to a specific port).This causes the generation of many "InEdges" with the name "helper" that are not cleaned-up.Those helper-edges generate an error when the node is removed.How could this be avoided and still use the possibility to cancel specific connectors being connected on the "connectionChange"-event?An example to reproduce the error is given here: http://jsplayground.syncfusion.com/fvcffhbcBest regards, TychoejDiagram version: 13.4.0.53

Shyam G · Answer

Hi Tycho,

Please use connectorSourceChange and connectorTargetChange event to achieve your requirement. please refer to the code example below.

$("#diagram").ejDiagram({
      //define connectorTargetChange event
        connectorTargetChange: connectionchange,
         //define connectorSourceChange event
        connectorSourceChange: connectionchange,
   });

function connectionchange(args) {
                    if (args.node || args.port)
                        args.cancel = true;
    }

JSPlayground link:http://jsplayground.syncfusion.com/2jxuchme

Regards,
Shyam G