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    Bar Charts

    Drill-Down Chart

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    This demo shows a drill-down chart with two views. The start view displays a breakdown of population by continents. When you click a bar, the detailed view reveals most populated countries on the selected continent. Data for this view is provided by applying a filter to the original data.

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    const DemoApp = angular.module('DemoApp', ['dx']); DemoApp.controller('DemoController', ($scope, $element) => { $scope.dataSource = filterData(''); $scope.isFirstLevel = true; $scope.chartOptions = { bindingOptions: { dataSource: 'dataSource', }, title: 'The Most Populated Countries by Continents', series: { type: 'bar', }, legend: { visible: false, }, valueAxis: { showZero: false, }, onPointClick(e) { if ($scope.isFirstLevel) { $scope.isFirstLevel = false; removePointerCursor($element); $scope.dataSource = filterData(e.target.originalArgument); } }, customizePoint() { const pointSettings = { color: colors[Number($scope.isFirstLevel)], }; if (!$scope.isFirstLevel) { pointSettings.hoverStyle = { hatching: 'none', }; } return pointSettings; }, }; $scope.buttonOptions = { text: 'Back', icon: 'chevronleft', bindingOptions: { visible: '!isFirstLevel', }, onClick() { if (!$scope.isFirstLevel) { $scope.isFirstLevel = true; addPointerCursor($element); $scope.dataSource = filterData(''); } }, }; addPointerCursor($element); }); function filterData(name) { return data.filter((item) => item.parentID === name); } function addPointerCursor(element) { element.find('#chart').addClass('pointer-on-bars'); } function removePointerCursor(element) { element.find('#chart').removeClass('pointer-on-bars'); }
    <!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/21.2.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.5/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/21.2.5/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 class="button-container"> <div dx-button="buttonOptions"></div> </div> </div> </body> </html>
    #chart { height: 440px; width: 100%; } #chart.pointer-on-bars .dxc-series rect { cursor: pointer; } .button-container { text-align: center; height: 40px; position: absolute; top: 7px; left: 0; }
    const colors = ['#6babac', '#e55253']; const data = [ { arg: 'Asia', val: 3007613498, parentID: '' }, { arg: 'North America', val: 493603615, parentID: '' }, { arg: 'Europe', val: 438575293, parentID: '' }, { arg: 'Africa', val: 381331438, parentID: '' }, { arg: 'South America', val: 331126555, parentID: '' }, { arg: 'Nigeria', val: 181562056, parentID: 'Africa' }, { arg: 'Egypt', val: 88487396, parentID: 'Africa' }, { arg: 'Congo', val: 77433744, parentID: 'Africa' }, { arg: 'Morocco', val: 33848242, parentID: 'Africa' }, { arg: 'China', val: 1380083000, parentID: 'Asia' }, { arg: 'India', val: 1306687000, parentID: 'Asia' }, { arg: 'Pakistan', val: 193885498, parentID: 'Asia' }, { arg: 'Japan', val: 126958000, parentID: 'Asia' }, { arg: 'Russia', val: 146804372, parentID: 'Europe' }, { arg: 'Germany', val: 82175684, parentID: 'Europe' }, { arg: 'Turkey', val: 79463663, parentID: 'Europe' }, { arg: 'France', val: 66736000, parentID: 'Europe' }, { arg: 'United Kingdom', val: 63395574, parentID: 'Europe' }, { arg: 'United States', val: 325310275, parentID: 'North America' }, { arg: 'Mexico', val: 121005815, parentID: 'North America' }, { arg: 'Canada', val: 36048521, parentID: 'North America' }, { arg: 'Cuba', val: 11239004, parentID: 'North America' }, { arg: 'Brazil', val: 205737996, parentID: 'South America' }, { arg: 'Colombia', val: 48400388, parentID: 'South America' }, { arg: 'Venezuela', val: 30761000, parentID: 'South America' }, { arg: 'Peru', val: 28220764, parentID: 'South America' }, { arg: 'Chile', val: 18006407, parentID: 'South America' }, ];