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Charts

API - Select a Point

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This demo shows how easily you can access a necessary chart series and select a specific point in it using the API.

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const DemoApp = angular.module('DemoApp', ['dx']); DemoApp.controller('DemoController', ($scope) => { $scope.chartOptions = { dataSource, rotated: true, commonSeriesSettings: { argumentField: 'breed', type: 'bar', }, series: { valueField: 'count', name: 'breeds', color: '#a3d6d2', selectionStyle: { color: '#ec2e7a', hatching: { direction: 'none' }, }, }, title: { text: 'Most Popular US Cat Breeds', }, legend: { visible: false, }, export: { enabled: true, }, onDone(e) { e.component.getSeriesByPos(0).getPointsByArg('Siamese')[0].select(); }, onPointClick(e) { const point = e.target; if (point.isSelected()) { point.clearSelection(); } else { point.select(); } }, }; });
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <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" /> <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/21.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.3/css/dx.light.css" /> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js"></script> <script>window.angular || document.write(decodeURIComponent('%3Cscript src="js/angular.min.js"%3E%3C/script%3E'))</script> <script src="https://cdn3.devexpress.com/jslib/21.2.3/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" ng-app="DemoApp" ng-controller="DemoController"> <div id="chart" dx-chart="chartOptions"></div> </div> </body> </html>
#chart { height: 440px; }
const dataSource = [{ breed: 'Domestic Shorthair', count: 61046, }, { breed: 'American Shorthair', count: 37545, }, { breed: 'Domestic Medium Hair', count: 16776, }, { breed: 'Domestic Long Hair', count: 15049, }, { breed: 'Siamese', count: 14582, }, { breed: 'Maine Coon', count: 10852, }, { breed: 'Persian', count: 6717, }, { breed: 'Russian Blue', count: 3864, }, { breed: 'Himalayan', count: 3701, }, { breed: 'Ragdoll', count: 3567, }, { breed: 'Bengal', count: 3118, }, { breed: 'Manx', count: 2349, }, { breed: 'British Shorthair', count: 2171, }, { breed: 'Norwegian Forest Cat', count: 1827, }, { breed: 'Bombay', count: 1580, }];