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Focused Row

The DataGrid component can highlight the focused row. To enable this feature, set the focusedRowEnabled property to true.

To focus a row programmatically, specify the focusedRowKey property. The DataGrid automatically scrolls to the focused row if the autoNavigateToFocusedRow property is enabled. In the UI, users can click a row to focus it. The focused row is saved in the DataGrid's state.

You can use the onFocusedRowChanging or onFocusedRowChanged property to specify a custom function that is executed before or after a row is focused.

In this demo, the row with the 117 key is focused initially. You can specify the focusedRowKey and autoNavigateToFocusedRow properties via the input field and the checkbox below the DataGrid.

Backend API
import React, { useCallback, useState } from 'react'; import { DataGrid, Column, Paging, DataGridTypes, } from 'devextreme-react/data-grid'; import { NumberBox, NumberBoxTypes } from 'devextreme-react/number-box'; import { CheckBox, CheckBoxTypes } from 'devextreme-react/check-box'; import 'devextreme/data/odata/store'; const focusedRowKeyLabel = { 'aria-label': 'Focused Row Key' }; const dataSourceOptions = { store: { type: 'odata' as const, version: 2, key: 'Task_ID', url: 'https://js.devexpress.com/Demos/DevAV/odata/Tasks', }, expand: 'ResponsibleEmployee', select: [ 'Task_ID', 'Task_Subject', 'Task_Start_Date', 'Task_Status', 'Task_Description', 'Task_Completion', 'ResponsibleEmployee/Employee_Full_Name', ], }; const App = () => { const [taskSubject, setTaskSubject] = useState(''); const [taskDetails, setTaskDetails] = useState(''); const [taskStatus, setTaskStatus] = useState(''); const [taskProgress, setTaskProgress] = useState(''); const [focusedRowKey, setFocusedRowKey] = useState(117); const [autoNavigateToFocusedRow, setAutoNavigateToFocusedRow] = useState(true); const onTaskIdChanged = useCallback((e: NumberBoxTypes.ValueChangedEvent) => { if (e.event && e.value > 0) { setFocusedRowKey(e.value); } }, []); // eslint-disable-next-line @typescript-eslint/space-before-function-paren const onFocusedRowChanging = useCallback(async(e: DataGridTypes.FocusedRowChangingEvent) => { const rowsCount = e.component.getVisibleRows().length; const pageCount = e.component.pageCount(); const pageIndex = e.component.pageIndex(); const event = e?.event as any; const key = event.key; if (key && e.prevRowIndex === e.newRowIndex) { if (e.newRowIndex === rowsCount - 1 && pageIndex < pageCount - 1) { await e.component.pageIndex(pageIndex + 1); e.component.option('focusedRowIndex', 0); } else if (e.newRowIndex === 0 && pageIndex > 0) { await e.component.pageIndex(pageIndex - 1); e.component.option('focusedRowIndex', rowsCount - 1); } } }, []); const onFocusedRowChanged = useCallback((e: DataGridTypes.FocusedRowChangedEvent) => { const data = e.row.data; const progress = data.Task_Completion ? `${data.Task_Completion}%` : ''; setTaskSubject(data.Task_Subject); setTaskDetails(data.Task_Description); setTaskStatus(data.Task_Status); setTaskProgress(progress); setFocusedRowKey(e.component.option('focusedRowKey')); }, []); const onAutoNavigateToFocusedRowChanged = useCallback((e: CheckBoxTypes.ValueChangedEvent) => { setAutoNavigateToFocusedRow(e.value); }, []); return ( <div> <DataGrid id="gridContainer" dataSource={dataSourceOptions} focusedRowEnabled={true} focusedRowKey={focusedRowKey} autoNavigateToFocusedRow={autoNavigateToFocusedRow} onFocusedRowChanging={onFocusedRowChanging} onFocusedRowChanged={onFocusedRowChanged} showBorders={true} > <Paging defaultPageSize={10} /> <Column dataField="Task_ID" width={80} /> <Column caption="Start Date" dataField="Task_Start_Date" dataType="date" /> <Column caption="Assigned To" dataField="ResponsibleEmployee.Employee_Full_Name" dataType="date" allowSorting={false} /> <Column caption="Subject" dataField="Task_Subject" width={350} /> <Column caption="Status" dataField="Task_Status" /> </DataGrid> <div className="task-info"> <div className="info"> <div id="taskSubject">{taskSubject}</div> <p id="taskDetails" dangerouslySetInnerHTML={{ __html: taskDetails }}></p> </div> <div className="progress"> <span id="taskStatus">{taskStatus}</span> <span id="taskProgress">{taskProgress}</span> </div> </div> <div className="options"> <div className="caption">Options</div> <div className="options-container"> <div className="option"> <span>Focused Row Key </span> <NumberBox id="taskId" min={1} max={183} step={0} value={focusedRowKey} inputAttr={focusedRowKeyLabel} onValueChanged={onTaskIdChanged}> </NumberBox> </div> <div className="option"> <CheckBox text="Auto Navigate To Focused Row" value={autoNavigateToFocusedRow} onValueChanged={onAutoNavigateToFocusedRowChanged}> </CheckBox> </div> </div> </div> </div> ); }; export default App;
import React, { useCallback, useState } from 'react'; import { DataGrid, Column, Paging } from 'devextreme-react/data-grid'; import { NumberBox } from 'devextreme-react/number-box'; import { CheckBox } from 'devextreme-react/check-box'; import 'devextreme/data/odata/store'; const focusedRowKeyLabel = { 'aria-label': 'Focused Row Key' }; const dataSourceOptions = { store: { type: 'odata', version: 2, key: 'Task_ID', url: 'https://js.devexpress.com/Demos/DevAV/odata/Tasks', }, expand: 'ResponsibleEmployee', select: [ 'Task_ID', 'Task_Subject', 'Task_Start_Date', 'Task_Status', 'Task_Description', 'Task_Completion', 'ResponsibleEmployee/Employee_Full_Name', ], }; const App = () => { const [taskSubject, setTaskSubject] = useState(''); const [taskDetails, setTaskDetails] = useState(''); const [taskStatus, setTaskStatus] = useState(''); const [taskProgress, setTaskProgress] = useState(''); const [focusedRowKey, setFocusedRowKey] = useState(117); const [autoNavigateToFocusedRow, setAutoNavigateToFocusedRow] = useState(true); const onTaskIdChanged = useCallback((e) => { if (e.event && e.value > 0) { setFocusedRowKey(e.value); } }, []); // eslint-disable-next-line @typescript-eslint/space-before-function-paren const onFocusedRowChanging = useCallback(async(e) => { const rowsCount = e.component.getVisibleRows().length; const pageCount = e.component.pageCount(); const pageIndex = e.component.pageIndex(); const event = e?.event; const key = event.key; if (key && e.prevRowIndex === e.newRowIndex) { if (e.newRowIndex === rowsCount - 1 && pageIndex < pageCount - 1) { await e.component.pageIndex(pageIndex + 1); e.component.option('focusedRowIndex', 0); } else if (e.newRowIndex === 0 && pageIndex > 0) { await e.component.pageIndex(pageIndex - 1); e.component.option('focusedRowIndex', rowsCount - 1); } } }, []); const onFocusedRowChanged = useCallback((e) => { const data = e.row.data; const progress = data.Task_Completion ? `${data.Task_Completion}%` : ''; setTaskSubject(data.Task_Subject); setTaskDetails(data.Task_Description); setTaskStatus(data.Task_Status); setTaskProgress(progress); setFocusedRowKey(e.component.option('focusedRowKey')); }, []); const onAutoNavigateToFocusedRowChanged = useCallback((e) => { setAutoNavigateToFocusedRow(e.value); }, []); return ( <div> <DataGrid id="gridContainer" dataSource={dataSourceOptions} focusedRowEnabled={true} focusedRowKey={focusedRowKey} autoNavigateToFocusedRow={autoNavigateToFocusedRow} onFocusedRowChanging={onFocusedRowChanging} onFocusedRowChanged={onFocusedRowChanged} showBorders={true} > <Paging defaultPageSize={10} /> <Column dataField="Task_ID" width={80} /> <Column caption="Start Date" dataField="Task_Start_Date" dataType="date" /> <Column caption="Assigned To" dataField="ResponsibleEmployee.Employee_Full_Name" dataType="date" allowSorting={false} /> <Column caption="Subject" dataField="Task_Subject" width={350} /> <Column caption="Status" dataField="Task_Status" /> </DataGrid> <div className="task-info"> <div className="info"> <div id="taskSubject">{taskSubject}</div> <p id="taskDetails" dangerouslySetInnerHTML={{ __html: taskDetails }} ></p> </div> <div className="progress"> <span id="taskStatus">{taskStatus}</span> <span id="taskProgress">{taskProgress}</span> </div> </div> <div className="options"> <div className="caption">Options</div> <div className="options-container"> <div className="option"> <span>Focused Row Key </span> <NumberBox id="taskId" min={1} max={183} step={0} value={focusedRowKey} inputAttr={focusedRowKeyLabel} onValueChanged={onTaskIdChanged} ></NumberBox> </div> <div className="option"> <CheckBox text="Auto Navigate To Focused Row" value={autoNavigateToFocusedRow} onValueChanged={onAutoNavigateToFocusedRowChanged} ></CheckBox> </div> </div> </div> </div> ); }; export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.tsx'; ReactDOM.render( <App />, document.getElementById('app'), );
window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, jsx: 'react', }, meta: { 'react': { 'esModule': true, }, 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, 'devextreme-aspnet-data-nojquery': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, defaultExtension: 'js', map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', 'react': 'npm:react@17.0.2/umd/react.development.js', 'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js', 'prop-types': 'npm:prop-types@15.8.1/prop-types.js', 'devextreme-aspnet-data-nojquery': 'npm:devextreme-aspnet-data-nojquery@3.0.0/index.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@23.2.5/cjs', 'devextreme-react': 'npm:devextreme-react@23.2.5/cjs', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.6.4/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.5/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.51/dist/dx-gantt.js', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', 'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.4/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.js', }, packages: { 'devextreme': { defaultExtension: 'js', }, 'devextreme-react': { main: 'index.js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/localization/messages': { format: 'json', defaultExtension: '', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.12/inferno/package.json', ], babelOptions: { sourceMaps: false, stage0: true, react: true, }, }; System.config(window.config);
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/23.2.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.6.12/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> <script type="text/javascript"> System.import("./index.tsx"); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
.task-info { font-family: Segoe UI; min-height: 200px; display: flex; flex-wrap: nowrap; border: 2px solid rgba(0, 0, 0, 0.1); padding: 16px; box-sizing: border-box; align-items: baseline; justify-content: space-between; } #taskSubject { line-height: 29px; font-size: 18px; font-weight: bold; } #taskDetails { line-height: 22px; font-size: 14px; margin-top: 0; margin-bottom: 0; } .progress { display: flex; flex-direction: column; white-space: pre; min-width: 105px; } .info { margin-right: 40px; } #taskProgress { line-height: 42px; font-size: 40px; font-weight: bold; } .options { margin-top: 20px; padding: 20px; background-color: rgba(191, 191, 191, 0.15); position: relative; } .caption { font-size: 18px; font-weight: 500; } .option { margin-top: 10px; margin-right: 40px; display: inline-block; } .option:last-child { margin-right: 0; } .option > .dx-numberbox { width: 200px; display: inline-block; vertical-align: middle; } .option > span { margin-right: 10px; } .options-container { display: flex; align-items: center; }