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Charts

Auto-Calculated Bar Width

Documentation
When values for a series are not specified or are set to zero, bars that represent these values will not be visible within the chart. You can populate these empty region by extending neighboring bars via the equalBarWidth property set to false.
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window.onload = function() { var viewModel = { chartOptions: { palette: "soft", equalBarWidth: false, dataSource: dataSource, commonSeriesSettings: { argumentField: "state", type: "bar" }, series: [ { valueField: "oil", name: "Oil Production" }, { valueField: "gas", name: "Gas Production" }, { valueField: "coal", name: "Coal Production" } ], legend: { verticalAlignment: "bottom", horizontalAlignment: "center" }, "export": { enabled: true }, title: "Percent of Total Energy Production" } }; ko.applyBindings(viewModel, document.getElementById("chart-demo")); };
<!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> <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.0/knockout-min.js"></script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.5/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/16.2.5/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/16.2.5/css/dx.light.css" /> <script src="https://cdn3.devexpress.com/jslib/16.2.5/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"> <div id="chart-demo"> <div id="chart" data-bind="dxChart: chartOptions"></div> </div> </div> </body> </html>
#chart { height: 440px; width: 100%; }
var dataSource = [{ state: "China", oil: 4.95, gas: 2.85, coal: 45.56 }, { state: "Russia", oil: 12.94, gas: 17.66, coal: 4.13 }, { state: "USA", oil: 8.51, gas: 19.87, coal: 15.84 }, { state: "Iran", oil: 5.3, gas: 4.39 }, { state: "Canada", oil: 4.08, gas: 5.4 }, { state: "Saudi Arabia", oil: 12.03 }, { state: "Mexico", oil: 3.86 }];