Update Circular Gauge Data at Runtime

import React from 'react'; import { CircularGauge, Scale, Label, RangeContainer, Range, Tooltip, Title, Font } from 'devextreme-react/circular-gauge'; import { SelectBox } from 'devextreme-react/select-box'; import { dataSource } from './data.js'; class App extends React.Component { constructor(props) { super(props); this.state = { value: dataSource[0].mean, subvalues: [dataSource[0].min, dataSource[0].max] }; this.onSelectionChanged = ({ selectedItem }) => { this.setState({ value: selectedItem.mean, subvalues: [selectedItem.min, selectedItem.max] }); }; } render() { return ( <div id="gauge-demo"> <CircularGauge id="gauge" value={this.state.value} subvalues={this.state.subvalues} > <Scale startValue={10} endValue={40} tickInterval={5}> <Label customizeText={this.customizeText} /> </Scale> <RangeContainer> <Range startValue={10} endValue={20} color="#0077BE" /> <Range startValue={20} endValue={30} color="#E6E200" /> <Range startValue={30} endValue={40} color="#77DD77" /> </RangeContainer> <Tooltip enabled={true} /> <Title text="Temperature in the Greenhouse"> <Font size={28} /> </Title> </CircularGauge> <SelectBox id="seasons" width={150} dataSource={dataSource} defaultValue={dataSource[0]} displayExpr="name" onSelectionChanged={this.onSelectionChanged} /> </div> ); } customizeText({ valueText }) { return `${valueText} °C`; } } export default App;