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    Range Selector

    Discrete scale

    Documentation

    In this demo, a discrete scale is used to select a range within a set of categories.

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    var DemoApp = angular.module('DemoApp', ['dx']); DemoApp.controller('DemoController', function DemoController($scope) { $scope.totalResult = "12,809,000"; $scope.rangeSelectorOptions = { dataSource: dataSource, chart: { commonSeriesSettings: { argumentField: "country", type: "bar" }, series: [ { valueField: "copper", name: "Copper" } ] }, title: "Copper Production in 2013", onValueChanged: function (e) { var data = e.component.option("dataSource"), total = 0, startIndex, endIndex; data.forEach(function(item, i){ if (item.country == e.value[0] ) startIndex = i; else if (item.country == e.value[1]) endIndex = i; }); if(endIndex) { data .slice(startIndex, endIndex + 1) .forEach(function(item){ total += item.copper; }); } else { total = data[startIndex].copper; } $scope.totalResult = formatNumber(total); } }; var formatNumber = new Intl.NumberFormat('en-US', { minimumFractionDigits: 0 }).format; });
    <!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/21.1.4/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.4/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/21.1.4/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="range-selector-demo"> <div id="range-selector" dx-range-selector="rangeSelectorOptions"></div> <h2>Total: <span>{{totalResult}}</span> tons</h2> </div> </div> </body> </html>
    #range-selector-demo { text-align: center; } #range-selector { margin-bottom: 20px; height: 200px; }
    var dataSource = [ { country: "Chile", copper: 5700000 }, { country: "United States", copper: 1220000 }, { country: "Peru", copper: 1300000 }, { country: "China", copper: 1650000 }, { country: "Australia", copper: 990000 }, { country: "Russia", copper: 930000 }, { country: "DR Congo", copper: 900000 }, { country: "Finland", copper: 119000 } ];