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Load tab with DataSource in React Tabs component

You can bind any data object to Tab items, by mapping it to a header and content property.

In the below demo, Data is fetched from an OData service using DataManager. The result data is formatted as a JSON object with header and content fields, which is set to items property of Tab.

Source
Preview
index.jsx
index.tsx
index.html
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { DataManager, Query, ODataV4Adaptor } from '@syncfusion/ej2-data';
import { TabComponent } from '@syncfusion/ej2-react-navigations';
const SERVICE_URI = 'https://services.odata.org/V4/Northwind/Northwind.svc/Employees';
export default class App extends React.Component {
    tabCreated() {
        new DataManager({ url: SERVICE_URI, adaptor: new ODataV4Adaptor })
            .executeQuery(new Query().range(1, 4)).then((e) => {
            let itemsData = [];
            let result = e.result;
            let mapping = { header: 'FirstName', content: 'Notes' };
            for (let i = 0; i < result.length; i++) {
                itemsData.push({ header: { text: result[i][mapping.header] }, content: result[i][mapping.content] });
            }
            this.items = itemsData;
            this.refresh();
        });
    }
    render() {
        return (<TabComponent heightAdjustMode='Auto' ref={tab => this.tabInstance = tab} created={this.tabCreated}>
      </TabComponent>);
    }
}
ReactDOM.render(<App />, document.getElementById('element'));
import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { DataManager, Query, ODataV4Adaptor, ReturnOption } from '@syncfusion/ej2-data';
import { TabComponent, TabItemDirective, TabItemsDirective } from '@syncfusion/ej2-react-navigations';

const SERVICE_URI: string = 'https://services.odata.org/V4/Northwind/Northwind.svc/Employees';

export default class App extends React.Component<{}, {}> {

  public tabCreated(): void {
    new DataManager({ url: SERVICE_URI, adaptor: new ODataV4Adaptor})
    .executeQuery(new Query().range(1, 4)).then((e: ReturnOption) => {
      let itemsData: Object[] = [];
      let result: any = e.result;
      let mapping =  { header: 'FirstName', content: 'Notes' };
      for(let i: number = 0; i < result.length; i++) {
        itemsData.push({ header: { text: result[i][mapping.header] }, content: result[i][mapping.content] });
      }
      this.items = itemsData;
      this.refresh();
    });
  }

  render() {
    return (
      <TabComponent heightAdjustMode='Auto' ref={tab => this.tabInstance = tab} created={this.tabCreated}>
      </TabComponent>
    );
  }
}
ReactDOM.render(<App />, document.getElementById('element'));
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React Tab</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="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/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='container'>
        <div id='element'>
                <div id='loader'>Loading</div>
        </div>
    </div>
</body>

</html>