Restrict collapse chart rows in React Gantt component

2 Feb 20237 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',
        parentID: 'ParentId'
    };
    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',
        parentID: 'ParentId'
    };
    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/ej2/29.2.4/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>