In Cell edit mode, when you double click on a cell, it is changed to edit state.
You can change the cell value and save to the data source.
To enable Cell edit, set the editSettings.mode as Cell.
import { TreeGrid, Edit, Toolbar } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';
TreeGrid.Inject(Edit, Toolbar);
let treeGridObj: TreeGrid = new TreeGrid({
dataSource: sampleData,
childMapping: 'subtasks',
toolbar: ['Add', 'Delete', 'Update', 'Cancel'],
editSettings: { allowEditing: true, allowAdding: true, allowDeleting: true, mode: 'Cell' },
treeColumnIndex: 1,
columns: [
{ field: 'taskID', headerText: 'Task ID', isPrimaryKey: true, width: 90, textAlign: 'Right'},
{ field: 'taskName', headerText: 'Task Name', width: 180 },
{
field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', editType: 'datepickeredit', type: 'date', format: 'yMd'
},
{ field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
],
height: 270
});
treeGridObj.appendTo('#TreeGrid');<!DOCTYPE html>
<html lang="en">
<head>
<title>EJ2 Tree Grid</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="Typescript Tree Grid Control" />
<meta name="author" content="Syncfusion" />
<link href="index.css" rel="stylesheet" />
<!-- Syncfusion Essential JS 2 Styles -->
<link rel="stylesheet" href="https://cdn.syncfusion.com/ej2/21.2.3/material.css" />
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id='container'>
<div id='TreeGrid'></div>
</div>
</body>
</html>Cell edit mode is default mode of editing.