How to Trigger Event When Diagram is in Read-Only Mode in Vue Diagram?

This article explains how to trigger an event when a diagram is in read-only mode in Vue Diagram.

In Syncfusion® Vue Diagram, you can make the diagram read-only while still triggering events like click by disabling the select constraints on nodes and connectors, along with the zoom constraint on the diagram. This effectively prevents interactions such as selection and zooming. The getNodeDefaults method uses NodeConstraints to disable the selection functionality on nodes, while the getConnectorDefaults method uses ConnectorConstraints to disable the selection functionality on connectors. Additionally, the DiagramConstraints disable the zoom functionality in diagram.

The following code snippet demonstrates how to configure these settings and trigger the click event.

data: function() {
   return {
     // Diagram properties
     width: "100%",
     height: "645px",
     nodes: nodes,
     connectors: connections,
     // Disable the Zoom constraint for diagram
     constraints: (DiagramConstraints.Default & ~DiagramConstraints.Zoom),

     // Disable the Select constraint for nodes
     getNodeDefaults: (obj) => {
       obj.width = 100;
       obj.height = 100;
       obj.constraints =
       NodeConstraints.Default & ~NodeConstraints.Select;
       return obj;
     },
     // Disable the Select constraint for connectors
     getConnectorDefaults: (connector) => {
       connector.constraints = ConnectorConstraints.Default & ~ConnectorConstraints.Select;
       return { style: { strokeColor: "#024249", strokeWidth: 2 } };
     },
     // Define the click event
     click: () => {
       alert('Click Event is triggered');
     }
   };
 }, 

Refer to the working sample for additional details and implementation: Click here for sample

Conclusion

We hope you enjoyed learning how to trigger the click event when the diagram is in read-only mode in Vue Diagram.

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

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