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Tooltips: HTML Markup Support

To set the tooltip's content, specify the contentTemplate. Inside the template, you can identify the chart series point for which the tooltip is displayed and thus display information related to that point.

en.wikipedia.org
Backend API
import React from 'react'; import PieChart, { Series, Tooltip, Export, } from 'devextreme-react/pie-chart'; import { populationData } from './data.ts'; import TooltipTemplate from './TooltipTemplate.tsx'; function App() { return ( <PieChart id="pie-chart" dataSource={populationData} title="Top 10 Most Populated States in US" palette="Bright" > <Series argumentField="name" valueField="population" /> <Tooltip enabled={true} contentRender={TooltipTemplate} /> <Export enabled={true} /> </PieChart> ); } export default App;
import React from 'react'; import PieChart, { Series, Tooltip, Export } from 'devextreme-react/pie-chart'; import { populationData } from './data.js'; import TooltipTemplate from './TooltipTemplate.js'; function App() { return ( <PieChart id="pie-chart" dataSource={populationData} title="Top 10 Most Populated States in US" palette="Bright" > <Series argumentField="name" valueField="population" /> <Tooltip enabled={true} contentRender={TooltipTemplate} /> <Export enabled={true} /> </PieChart> ); } export default App;
import React from 'react'; function getImagePath(point: { data: { name: string; }; }) { return `../../../../images/flags/${point.data.name.replace(/\s/, '')}.svg`; } const formatNumber = new Intl.NumberFormat('en-US', { maximumFractionDigits: 0, }).format; export default function TooltipTemplate(info) { return ( <div className="state-tooltip"> <img src={getImagePath(info.point)} /><h4 className="state">{info.argument}</h4> <div className="capital"> <span className="caption">Capital</span>: {info.point.data.capital} </div> <div className="population"> <span className="caption">Population</span>: {formatNumber(info.value)} people </div> <div> <span className="caption">Area</span>: <span className="area-km">{formatNumber(info.point.data.area)}</span> km<sup>2</sup> (<span className="area-mi">{formatNumber(0.3861 * info.point.data.area)}</span> mi<sup>2</sup>) </div> </div> ); }
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.tsx'; ReactDOM.render( <App />, document.getElementById('app'), );
export const populationData = [{ name: 'California', population: 38802500, capital: 'Sacramento', area: 423967, }, { name: 'Texas', population: 26956958, capital: 'Austin', area: 695662, }, { name: 'Florida', population: 19893297, capital: 'Tallahassee', area: 170312, }, { name: 'New York', population: 19746227, capital: 'Albany', area: 141297, }, { name: 'Illinois', population: 12880580, capital: 'Springfield', area: 149995, }, { name: 'Pennsylvania', population: 12787209, capital: 'Harrisburg', area: 119280, }, { name: 'Ohio', population: 11594163, capital: 'Columbus', area: 116098, }, { name: 'Georgia', population: 10097343, capital: 'Atlanta', area: 153910, }, { name: 'North Carolina', population: 9943964, capital: 'Raleigh', area: 139391, }, { name: 'Michigan', population: 9909877, capital: 'Lansing', area: 250487, }];
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, }, }, 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', '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@24.1.3/cjs', 'devextreme-react': 'npm:devextreme-react@24.1.3/cjs', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.8/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13', '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@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js', }, packages: { 'devextreme': { defaultExtension: 'js', }, 'devextreme-react': { main: 'index.js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/localization/messages': { format: 'json', defaultExtension: 'json', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.13/inferno/package.json', ], babelOptions: { sourceMaps: false, stage0: true, react: true, }, }; System.config(window.config);
import React from 'react'; function getImagePath(point) { return `../../../../images/flags/${point.data.name.replace(/\s/, '')}.svg`; } const formatNumber = new Intl.NumberFormat('en-US', { maximumFractionDigits: 0, }).format; export default function TooltipTemplate(info) { return ( <div className="state-tooltip"> <img src={getImagePath(info.point)} /> <h4 className="state">{info.argument}</h4> <div className="capital"> <span className="caption">Capital</span>: {info.point.data.capital} </div> <div className="population"> <span className="caption">Population</span>: {formatNumber(info.value)} people </div> <div> <span className="caption">Area</span>:{' '} <span className="area-km">{formatNumber(info.point.data.area)}</span> km<sup>2</sup> ( <span className="area-mi">{formatNumber(0.3861 * info.point.data.area)}</span> mi <sup>2</sup>) </div> </div> ); }
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render(<App />, document.getElementById('app'));
export const populationData = [ { name: 'California', population: 38802500, capital: 'Sacramento', area: 423967, }, { name: 'Texas', population: 26956958, capital: 'Austin', area: 695662, }, { name: 'Florida', population: 19893297, capital: 'Tallahassee', area: 170312, }, { name: 'New York', population: 19746227, capital: 'Albany', area: 141297, }, { name: 'Illinois', population: 12880580, capital: 'Springfield', area: 149995, }, { name: 'Pennsylvania', population: 12787209, capital: 'Harrisburg', area: 119280, }, { name: 'Ohio', population: 11594163, capital: 'Columbus', area: 116098, }, { name: 'Georgia', population: 10097343, capital: 'Atlanta', area: 153910, }, { name: 'North Carolina', population: 9943964, capital: 'Raleigh', area: 139391, }, { name: 'Michigan', population: 9909877, capital: 'Lansing', area: 250487, }, ];
<!DOCTYPE html> <html lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.3/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>
#pie-chart { height: 440px; } .state-tooltip { height: 90px; } .state-tooltip > img { width: 60px; height: 40px; display: block; margin: 0 5px 0 0; float: left; border: 1px solid rgba(191, 191, 191, 0.25); } .state-tooltip > h4 { line-height: 40px; font-size: 14px; margin-bottom: 5px; } .state-tooltip .caption { font-weight: 500; } .state-tooltip sup { font-size: 0.8em; vertical-align: super; line-height: 0; }