How to prevent node selection programatically in JavaScript Diagram?

This article explains how to prevent node selection programmatically in JavaScript Diagram. In the Syncfusion® JavaScript Diagram, the selectionChange event is triggered when selecting diagram elements either through user interaction or programmatically. Within the selectionChange event, you can prevent the selection of a node by setting a boolean value. By default, this value is set to false. When a node is dynamically selected, this boolean value is set to true.

Based on this Boolean value, the selection of the node is restricted within the selectionChange event by setting the args.cancel property to true. This prevents the node from being selected.

var isSelect = false;
selectionChange: function (args) {
   if (isSelect === true) {
     args.cancel = true;
   }
   isSelect = false;
 },

Refer to the working sample for additional details and implementation: Sample

Conclusion

We hope you enjoyed learning about how to prevent node selection programmatically in JavaScript Diagram.

You can refer to our JavaScript Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, as well as how to quickly get started with configuration specifications. You can also explore our JavaScript Diagram example to understand how to create and manipulate data.

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