Gauge Tooltip

Documentation

This demo shows how to enable and customize the tooltip of the CircularGauge. Hover over the value indicator or any of the subvalue indicators to show its tooltip.

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Backend API

import React from 'react'; import { CircularGauge, Scale, Tooltip, Font, Export, Title, } from 'devextreme-react/circular-gauge'; const subvalues = [8, 18]; class App extends React.Component { render() { return ( <CircularGauge id="gauge" value={12} subvalues={subvalues} > <Scale startValue={0} endValue={20} tickInterval={5} /> <Tooltip enabled={true} customizeTooltip={this.customizeTooltip}> <Font size={40} color="#DCD0FF" /> </Tooltip> <Export enabled={true} /> <Title text="Rheostat Resistance"> <Font size={28} /> </Title> </CircularGauge> ); } customizeTooltip({ valueText }) { return { text: `${valueText} ohm`, }; } } export default App;

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="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/23.1.5/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.js"); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>

#gauge { height: 440px; width: 100%; }