Master-Detail View

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The DataGrid widget supports the master-detail interface. This interface supplies a standard data row with an expandable section that contains detail data rows. Master-detail data representation is configured using the masterDetail object. In this example, each data row is supplied with a detail section that contains another DataGrid widget.

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import React from 'react'; import DataGrid, { Column, MasterDetail } from 'devextreme-react/data-grid'; import DetailTemplate from './DetailTemplate.js'; import service from './data.js'; const employees = service.getEmployees(); class App extends React.Component { render() { return ( <DataGrid id="grid-container" dataSource={employees} keyExpr="ID" showBorders={true} > <Column dataField="Prefix" width={70} caption="Title" /> <Column dataField="FirstName" /> <Column dataField="LastName" /> <Column dataField="Position" width={170} /> <Column dataField="State" width={125} /> <Column dataField="BirthDate" dataType="date" /> <MasterDetail enabled={true} component={DetailTemplate} /> </DataGrid> ); } } export default App;

import React from 'react'; import { DataGrid, Column } from 'devextreme-react/data-grid'; import ArrayStore from 'devextreme/data/array_store'; import DataSource from 'devextreme/data/data_source'; import service from './data.js'; const tasks = service.getTasks(); class DetailTemplate extends React.Component { constructor(props) { super(props); this.dataSource = getTasks(props.data.key); } render() { let { FirstName, LastName } = this.props.data.data; return ( <React.Fragment> <div className="master-detail-caption"> {`${FirstName} ${LastName}'s Tasks`} </div> <DataGrid dataSource={this.dataSource} showBorders={true} columnAutoWidth={true} > <Column dataField="Subject" /> <Column dataField="StartDate" dataType="date" /> <Column dataField="DueDate" dataType="date" /> <Column dataField="Priority" /> <Column caption="Completed" dataType="boolean" calculateCellValue={this.completedValue} /> </DataGrid> </React.Fragment> ); } completedValue(rowData) { return rowData.Status === 'Completed'; } } function getTasks(key) { return new DataSource({ store: new ArrayStore({ data: tasks, key: 'ID' }), filter: ['EmployeeID', '=', key] }); } export default DetailTemplate;

import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );

<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.6/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.1.6/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>

#grid-container { height: 440px; } .master-detail-caption { padding: 0 0 5px 10px; font-size: 14px; font-weight: bold; }

System.config({ transpiler: 'plugin-babel', meta: { }, paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@20.1', 'devextreme-react': 'npm:devextreme-react@20.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram@1.0.9', 'devexpress-gantt': 'npm:devexpress-gantt@1.0.7', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, }, babelOptions: { sourceMaps: false, stage0: true, react: true } });