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Complex Data Binding in JavaScript Grid control

30 Sep 2022 / 2 minutes to read

You can achieve complex data binding in the grid by using the dot(.) operator in the column.field.

Source
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index.ts
index.html
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import { Grid } from '@syncfusion/ej2-grids';
import { complexData } from './datasource.ts';

let grid: Grid = new Grid({
    dataSource: complexData,
    columns: [
        { field: 'EmployeeID', headerText: 'Employee ID', textAlign: 'Right', width: 100 },
        { field: 'Name.FirstName', headerText: 'First Name', width: 120 },
        { field: 'Name.LastName', headerText: 'Last Name', width: 100 },
        { field: 'Title', headerText: 'Title', width: 150 }
    ],
    height: 315
});
grid.appendTo('#Grid');
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<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    
    
    <link href="//cdn.syncfusion.com/ej2/20.3.47/ej2-grids/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='Grid'></div>        
    </div>
</body>
</html>

For OData and ODataV4 adaptors, you need to add expand query to the query property (of Grid), to eager load the complex data.

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import { DataManager, ODataAdaptor, Query } from '@syncfusion/ej2-data';

 let  data: DataManager = new DataManager({
       adaptor: new ODataAdaptor(),
       crossDomain: true,
       url: 'https://js.syncfusion.com/demos/ejServices/Wcf/Northwind.svc/Orders'
     });
 let query: Query = new Query().expand('Employee');

 let grid: Grid = new Grid({
    dataSource: data,
    query: query,
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 100 },
        { field: 'CustomerID', headerText: 'Customer ID', width: 120 },
        { field: 'ShipCity', headerText: 'Ship City', width: 100 },
        { field: 'Employee.City', headerText: 'Employee City', width: 150 }
    ],
    height: 315
});
grid.appendTo('#Grid');