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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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var DemoApp = angular.module('DemoApp', ['dx']); DemoApp.controller('DemoController', function DemoController($scope) { $scope.chartOptions = { dataSource: 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 }, valueAxis: { label: { format: "thousands" } }, onInitialized: function(e) { e.component.getSeriesByPos(0).getPointsByArg("Siamese")[0].select(); }, onPointClick: function(e) { var 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="js/jquery-3.1.0.min.js"></script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.5/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.5/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.5/css/dx.light.css" /> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.16/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/17.1.5/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; width: 100%; }
var 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 }];