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Range Selector

Numeric Scale

Documentation
In this demo, data used to define the RangeSelector scale comes in the string type. However, there is the valueType option that specifies the actual data type of the scale. As this option is set to "numeric", the string data will be cast to the numeric type.
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var DemoApp = angular.module('DemoApp', ['dx']); DemoApp.controller('DemoController', function DemoController($scope) { $scope.rangeSelectorOptions = { dataSource: dataSource, margin: { top: 50 }, size: { height: 400 }, chart: { commonSeriesSettings: { type: "spline", argumentField: "weight" }, series: [ { valueField: "appleCost", color: "#00ff00" }, { valueField: "orangeCost", color: "#ffa500" } ] }, scale: { valueType: "numeric" }, value: ["1", "2"], title: "Select a Product Weight" }; });
<!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/17.1.3/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.3/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.3/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/17.1.3/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="range-selector" dx-range-selector="rangeSelectorOptions"></div> </div> </body> </html>
#range-selector { height: 440px; width: 100%; }
var dataSource = [ { weight: "1", appleCost: 3, orangeCost: 7 }, { weight: "2", appleCost: 20, orangeCost: 14 }, { weight: "3", appleCost: 21, orangeCost: 21 }, { weight: "4", appleCost: 22, orangeCost: 28 }, { weight: "5", appleCost: 25, orangeCost: 35 }, { weight: "6", appleCost: 30, orangeCost: 42 }, { weight: "7", appleCost: 35, orangeCost: 44 }, { weight: "8", appleCost: 42, orangeCost: 45 }, { weight: "9", appleCost: 49, orangeCost: 46 }, { weight: "10", appleCost: 60, orangeCost: 47 } ];