Bar Chart in EJ2 JavaScript Charts

7 May 202524 minutes to read

Bar

To render a bar series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:

Set the series type: Define the series type as Bar in your chart configuration. This indicates that the data should be represented as a bar chart, which makes it easy to compare values across categories.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Binding data with series

You can bind data to the chart using the dataSource property within the series configuration. This allows you to connect a JSON dataset or remote data to your chart. To display the data correctly, map the fields from the data to the chart series xName and yName properties.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Series customization

The following properties can be used to customize the bar series.

Fill

The fill property determines the color applied to the series.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        fill: 'blue'
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

The fill property can be used to apply a gradient color to the bar series. By configuring this property with gradient values, you can create a visually appealing effect in which the color transitions smoothly from one shade to another.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        fill: 'url(#gradient)'
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <svg style="width:1px; height:1px">
        <defs>
            <linearGradient id="gradient">
                <stop offset="0%" style="stop-color:blue;stop-opacity:5" />
                <stop offset="70%" style="stop-color:violet;stop-opacity:5" />
            </linearGradient>
        </defs>
    </svg>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Opacity

The opacity property specifies the transparency level of the fill. Adjusting this property allows you to control how opaque or transparent the fill color of the series appears.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        opacity: 0.5
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Border

Use the border property to customize the width, color and dasharray of the series border.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        border: { width: 2, color: '#ff4251', dashArray: '5,5' }
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Bar space and width

Bar space

Use the columnSpacing property in the series to adjust the space between bars.

index.js
index.html
var chartData = [
    { x: 2005, y: 8, y1: 4 },
    { x: 2006, y: 5, y1: 8 },
    { x: 2007, y: 6, y1: 3.5 },
    { x: 2008, y: 7, y1: 6 },
    { x: 2009, y: 3.5, y1: 4 },
    { x: 2010, y: 5, y1: 3.5 },
    { x: 2011, y: 3.5, y1: 5 }
];

var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2004,
        maximum: 2012,
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3,
        maximum: 12,
        interval: 1,
        title: 'Percentage',
        labelFormat: '{value}%'
    },
    series: [{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    },
    {
        dataSource: chartData,
        xName: 'x',
        yName: 'y1',
        columnSpacing: 0.5,
        // Series type as bar series
        type: 'Bar',
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Bar width

Use the columnWidth property in the series to adjust the width of the bars.

index.js
index.html
var chartData = [
    { x: 2005, y: 8, y1: 4 },
    { x: 2006, y: 5, y1: 8 },
    { x: 2007, y: 6, y1: 3.5 },
    { x: 2008, y: 7, y1: 6 },
    { x: 2009, y: 3.5, y1: 4 },
    { x: 2010, y: 5, y1: 3.5 },
    { x: 2011, y: 3.5, y1: 5 }
];

var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2004,
        maximum: 2012,
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3,
        maximum: 12,
        interval: 1,
        title: 'Percentage',
        labelFormat: '{value}%'
    },
    series: [
        {
            dataSource: chartData,
            xName: 'x', yName: 'y',
            // Series type as bar series
            type: 'Bar'
        },
        {
            dataSource: chartData,
            xName: 'x',
            yName: 'y1',
            columnWidth: 0.75,
            // Series type as bar series
            type: 'Bar',
        }
    ],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Bar width in pixel

Use the columnWidthInPixel property in the series to define the exact width of the bars in pixels. This property ensures that each bar maintains the specified width, providing a uniform appearance throughout the chart.

index.js
index.html
var chartData = [
    { x: 2005, y: 8, y1: 4 },
    { x: 2006, y: 5, y1: 8 },
    { x: 2007, y: 6, y1: 3.5 },
    { x: 2008, y: 7, y1: 6 },
    { x: 2009, y: 3.5, y1: 4 },
    { x: 2010, y: 5, y1: 3.5 },
    { x: 2011, y: 3.5, y1: 5 }
];

var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2004,
        maximum: 2012,
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3,
        maximum: 12,
        interval: 1,
        title: 'Percentage',
        labelFormat: '{value}%'
    },
    series: [
        {
            dataSource: chartData,
            xName: 'x', yName: 'y',
            // Series type as bar series
            type: 'Bar'
        },
        {
            dataSource: chartData,
            xName: 'x',
            yName: 'y1',
            columnWidthInPixel: 5,
            // Series type as bar series
            type: 'Bar',
        }
    ],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Grouped bar

Use the groupName property to group the data points in bar type charts. Data points with the same group name will be grouped together in the chart, making it easy to compare different sets of data.

index.js
index.html
var data1 = [
    { x: '2012', y: 104 }, 
    { x: '2016', y: 121 }, 
    { x: '2020', y: 113 }
];

var data2 = [
    { x: '2012', y: 46 }, 
    { x: '2016', y: 46 }, 
    { x: '2020', y: 39 }
];

var data3 = [
    { x: '2012', y: 65 }, 
    { x: '2016', y: 67 },
    { x: '2020', y: 65 }
];

var data4 = [
    { x: '2012', y: 29 }, 
    { x: '2016', y: 27 },
    { x: '2020', y: 22 }
];

var chart = new ej.charts.Chart({
     primaryXAxis: {
        valueType: 'Category'
    },
    series: [
        {
            type: 'Bar', xName: 'x', yName: 'y', groupName: 'USA', columnWidth: 0.7,
            dataSource: data1, columnSpacing: 0.1,
        },
        {
            type: 'Bar', xName: 'x',  yName: 'y', groupName: 'USA', columnWidth: 0.5,
            dataSource: data2, columnSpacing: 0.1,
        },
        {
            type: 'Bar', xName: 'x',  yName: 'y', groupName: 'UK', columnWidth: 0.7,
            dataSource: data3, columnSpacing: 0.1,
        },
        {
            type: 'Bar', xName: 'x', yName: 'y', groupName: 'UK', columnWidth: 0.5,
            dataSource: data4, columnSpacing: 0.1,
        }
    ]
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Cylindrical bar chart

To render a cylindrical bar chart, set the columnFacet property to Cylinder in the chart series. This property transforms the regular bars into cylindrical shapes, enhancing the visual representation of the data.

index.js
index.html
var cylindricalData = [
    { x: 2006, y: 9 }, { x: 2007, y: 7.8 },
    { x: 2008, y: 10.5 }, { x: 2009, y: 8.4 },
    { x: 2010, y: 6 }, { x: 2011, y: 11 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
    series: [{
        dataSource: cylindricalData,
        xName: 'x', yName: 'y',
        // Series type as bar series with cylinder shape
        type: 'Bar', columnFacet: 'Cylinder'
    }],
    title: 'Unemployment rate in percentage'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Empty points

Data points with null or undefined values are considered empty. Empty data points are ignored and not plotted on the chart.

Mode

Use the mode property to define how empty or missing data points are handled in the series. The default mode for empty points is Gap.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: null }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        emptyPointSettings: {
            mode: 'Average'
        }
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Fill

Use the fill property to customize the fill color of empty points in the series.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: null }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        emptyPointSettings: {
            mode: 'Average',
            fill: 'blue'
        }
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Border

Use the border property to customize the width and color of the border for empty points.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: null }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar',
        emptyPointSettings: {
            mode: 'Average',
            fill: 'blue',
            border: { width: 2, color: '#FFA500' }
        }
    }],
    title: 'Unemployment rate (%)'
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Corner radius

The cornerRadius property in the chart series is used to customize the corner radius for bar series. This allows you to create bars with rounded corners, giving your chart a more polished appearance. You can customize each corner of the bars using the topLeft, topRight, bottomLeft, and bottomRight properties.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, 
    { x: 2007, y: -7.2 },
    { x: 2008, y: 6.8 }, 
    { x: 2009, y: -10.7 },
    { x: 2010, y: 10.8}, 
    { x: 2011, y: -9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        cornerRadius: { topRight: 10, bottomRight: 10 },
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)',
    pointRender: function (args) {
        if (args.point.y < 7.5) {
            args.fill = '#ff6347';
        }
        else {
            args.fill = '#009cb8';
        }
    }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Point corner radius

We can customize the corner radius for individual points in the chart series using the pointRender event by setting the cornerRadius property in its event argument.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)',
    pointRender: function (args) {
        if (args.point.index === 1) {
            args.cornerRadius = { topLeft: 0, bottomLeft: 0, topRight: 10, bottomRight: 10 };
        }
        if (args.point.index === 4) {
            args.cornerRadius = { topLeft: 0, bottomLeft: 0, topRight: 10, bottomRight: 10 };
        }
    }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Events

Series render

The seriesRender event allows you to customize series properties, such as data, fill, and name, before they are rendered on the chart.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)',
    seriesRender: function (args) {
        args.fill = '#ff6347';
    }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>

Point render

The pointRender event allows you to customize each data point before it is rendered on the chart.

index.js
index.html
var chartData = [
    { x: 2006, y: 7.8 }, { x: 2007, y: 7.2 },
    { x: 2008, y: 6.8 }, { x: 2009, y: 10.7 },
    { x: 2010, y: 10.8}, { x: 2011, y: 9.8 }
];
var chart = new ej.charts.Chart({
    primaryXAxis: {
        minimum: 2005, 
        maximum: 2012, 
        interval: 1,
        title: 'Year'
    },
    primaryYAxis: {
        minimum: 3, 
        maximum: 12,
        interval: 1, 
        title: 'Percentage',
        labelFormat: '{value}%'
    },
   series:[{
        dataSource: chartData,
        xName: 'x', yName: 'y',
        // Series type as bar series
        type: 'Bar'
    }],
    title: 'Unemployment rate (%)',
    pointRender: function (args) {
        if (args.point.y < 7.5) {
            args.fill = '#ff6347';
        }
        else {
            args.fill = '#009cb8';
        }
    }
}, '#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id="container">
        <div id="element"></div>
    </div>
    <script>
        var ele = document.getElementById('container');
        if (ele) {
            ele.style.visibility = "visible";
        }   
    </script>
    <script src="index.js" type="text/javascript"></script>
</body>

</html>