JavaScript/jQuery Gauges - Update Circular Gauge Data at Runtime

This demo illustrates how to bind an array of subvalues to the CircularGauge. Since an array can not be bound to a field as a regular value, it is bound as a computed one.

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Backend API

$(() => { const gauge = $('#gauge').dxCircularGauge({ scale: { startValue: 10, endValue: 40, tickInterval: 5, label: { customizeText(arg) { return `${arg.valueText} °C`; }, }, }, rangeContainer: { ranges: [ { startValue: 10, endValue: 20, color: '#0077BE' }, { startValue: 20, endValue: 30, color: '#E6E200' }, { startValue: 30, endValue: 40, color: '#77DD77' }, ], }, tooltip: { enabled: true }, title: { text: 'Temperature in the Greenhouse', font: { size: 28 }, }, value: dataSource[0].mean, subvalues: [dataSource[0].min, dataSource[0].max], }).dxCircularGauge('instance'); $('#seasons').dxSelectBox({ width: 150, dataSource, inputAttr: { 'aria-label': 'Season' }, displayExpr: 'name', value: dataSource[0], onSelectionChanged(e) { gauge.option('value', e.selectedItem.mean); gauge.option('subvalues', [e.selectedItem.min, e.selectedItem.max]); }, }); });

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" 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" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.2.3/css/dx.light.css" /> <script src="js/dx.all.js"></script> <script src="data.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="gauge-demo"> <div id="gauge"></div> <div id="seasons"></div> </div> </div> </body> </html>

#gauge-demo { height: 440px; width: 100%; } #gauge { width: 80%; height: 100%; float: left; } #seasons { width: 20%; float: left; text-align: left; margin-top: 20px; }

const dataSource = [{ name: 'Summer', mean: 35, min: 28, max: 38, }, { name: 'Autumn', mean: 24, min: 20, max: 32, }, { name: 'Winter', mean: 18, min: 16, max: 23, }, { name: 'Spring', mean: 27, min: 18, max: 31, }];