Dialog editing in EJ2 TypeScript Treegrid control

27 Apr 20233 minutes to read

In Dialog edit mode, when you start editing the currently selected row, data will be shown on a dialog.
You can change the cell values and save edited data to the data source.
To enable Dialog edit, set the editSettings.mode as Dialog.

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', 'Edit', 'Delete', 'Update', 'Cancel'],
    editSettings: { allowEditing: true, allowAdding: true, allowDeleting: true, mode: 'Dialog' },
    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, editType: 'datepickeredit', textAlign: 'Right', 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/material.css" />
    <link href="https://cdn.syncfusion.com/ej2/29.2.4/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>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>        
    </div>
</body>
</html>