Restrict collapse chart rows in React Gantt component

2 Feb 20235 minutes to read

Restriction of collapsing the records when clicking on gantt chart rows can be performed by using the collapsing event.

import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { GanttComponent, Inject, Edit, EditSettingsModel, Selection } from '@syncfusion/ej2-react-gantt';
import { data } from './datasource';
function  App(){
    const taskFields = {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
  };
  let ganttInstance;
 const  editOptions = {
      allowEditing: true,
      allowAdding:true
  };
  let gantt;
 function collapsing(args) {
    if (gantt.ganttChartModule.isExpandCollapseFromChart) {
        args.cancel = true;
    }
  };
    
        return (<div>
        <GanttComponent dataSource={data} ref={gantt => ganttInstance = gantt} taskFields={taskFields} collapsing={collapsing} allowSelection={true}
        editSettings={editOptions} height = '450px'>
            <Inject services={[Edit, Selection]} />
        </GanttComponent></div>)
    
};
ReactDOM.render(<App />, document.getElementById('root'));
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { GanttComponent, Inject, Edit, EditSettingsModel, Selection } from '@syncfusion/ej2-react-gantt';
import { data } from './datasource';
function  App(){
    const taskFields: any = {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
  };
  let ganttInstance:any;
 const  editOptions: EditSettingsModel = {
      allowEditing: true,
      allowAdding:true
  };
  let gantt;
 function collapsing(args:any) {
    if (gantt.ganttChartModule.isExpandCollapseFromChart) {
        args.cancel = true;
    }
  };
    
        return (<div>
        <GanttComponent dataSource={data} ref={gantt => ganttInstance = gantt} taskFields={taskFields} collapsing={collapsing} allowSelection={true}
        editSettings={editOptions} height = '450px'>
            <Inject services={[Edit, Selection]} />
        </GanttComponent></div>)
    
};
ReactDOM.render(<App />, document.getElementById('root'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Gantt</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/material.css" rel="stylesheet" type="text/css"/>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
     <style>
        #loader {
            color: #008cff;
            height: 40px;
            left: 45%;
            position: absolute;
            top: 45%;
            width: 30%;
        }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
        <div id='root'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>