How to Perform Drag and Drop Operation in OrgChart Vue Diagram?

This article explains how to perform a drag-and-drop operation in the OrgChart Vue Diagram. In the OrgChart sample, one can create a parent/child relationship by dragging and dropping a node onto another node using the drop event in Vue Diagram.

Additionally, the AllowDrop constraints need to be enabled to display a highlighter when dragging a node and hovering the mouse over another node.

Please refer to the provided code example for more information.

<template>
 <ejs-diagram
     style="display: block"
     ref="diagramObject"
     id="diagram"
     :width="width"
     :height="height"
     :getNodeDefaults="getNodeDefaults"
     :getConnectorDefaults="getConnectorDefaults"
     :drop="drop"
     :created="created"
     :layout="layout"
     :dataSourceSettings="dataSourceSettings"
   ></ejs-diagram>
</template>


// Drop event
drop: (args) => {
   setTimeout(() => {
     let diagram = this.$refs.diagramObject.ej2Instances;
     var connector = {};
     if (args.element && args.target) {
       if (args.element) {
         // Get a connector object
         connector = diagram.getObject(args.element.inEdges[0]);
       }
       // This block is executed when we drag any node in the diagram and drop it onto the another node
       if (connector) {
         //update connector source and target id
         connector.sourceID = args.target.id;
         connector.targetID = args.element.id;
         diagram.dataBind();
       } else {
         // This block is executed when we drag a node in the palette and drop it onto a node in the diagram
         if (args.target.id !== args.element.id) {
           diagram.add({
             id: 'connector' + randomId(),
             sourceID: args.target.id,
             targetID: args.element.id,
           });
         }
       }

       // To update the layout
       diagram.doLayout();
     }
   }, 100);
   diagram.fitToPage();
 }, 

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

Conclusion

I hope you enjoyed learning how to perform drag-and-drop operations in OrgChart 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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