Deny to disconnect connector for specific node

[Alex B]

Hi Syncfusion.

Is it possible to deny disconnection connector by target or source id for specific nodes?
I tried args.cancel=true for collection change event, but that didn't work.

Can you provide some sample?

Thanks

[Arunkumar Manoharan]

Hai Alex, 

 

We have added a sample to demonstrate how to deny disconnection of connector for specific node. In this sample we used connectionChange event for denying disconnection. By checking the specific nodeId in changing state and preventing the connector disconnection. For more information, please refer to the below code snippet and sample.  

Code snippet: 

connectionChange: (args) => { 

        let diagram = this.$refs.diagramObject.ej2Instances; 

        if (args.state === "Changing") { 

          let checkNode = diagram.getObject(args.oldValue.nodeId); 

          if (checkNode && checkNode.id === "node4") { 

            args.cancel = true; 

          } 

        } 

      }, 

 

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/connector-disconnection-Vue1810632871  

Regards,
Arun.