Stack bar Chart in EJ2 TypeScript control

3 Apr 202524 minutes to read

Stacked bar

To render a stacked 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 StackingBar in your chart configuration. This indicates that the data should be represented as a stacked bar chart, where each bar consists of multiple segments stacked horizontally on top of each other.

  • Inject the StackingBarSeries module: Use the Chart.Inject(StackingBarSeries) method to inject the StackingBarSeries module into your chart. This step is essential, as it ensures that the necessary functionalities for rendering stacked bar series are available in your chart.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

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.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Series customization

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

Fill

The fill property determines the color applied to the series.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            fill: '#483D8B'
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            fill: '#556B2F'
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            fill: '#8B0000'
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

The fill property can be used to apply a gradient color to the stacked 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.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            fill: 'url(#gradient1)'
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            fill: 'url(#gradient2)'
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            fill: 'url(#gradient3)'
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
    <svg style="width:1px; height:1px">
        <defs>
            <linearGradient id="gradient1">
                <stop offset="0%" style="stop-color:coral;stop-opacity:5" />
                <stop offset="50%" style="stop-color:mediumseagreen;stop-opacity:5" />
            </linearGradient>
        </defs>
    </svg>
    <svg style="width:1px; height:1px">
        <defs>
            <linearGradient id="gradient2">
                <stop offset="0%" style="stop-color:darkred;stop-opacity:5" />
                <stop offset="50%" style="stop-color:darkorange;stop-opacity:5" />
            </linearGradient>
        </defs>
    </svg>
    <svg style="width:1px; height:1px">
        <defs>
            <linearGradient id="gradient3">
                <stop offset="0%" style="stop-color:darkmagenta;stop-opacity:5" />
                <stop offset="50%" style="stop-color:darkcyan;stop-opacity:5" />
            </linearGradient>
        </defs>
    </svg>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

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.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            opacity: 0.7
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            opacity: 0.7
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            opacity: 0.7
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Border

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

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            border: { width: 2, color: '#ff4251', dashArray: '5,5' }
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            border: { width: 2, color: '#66BDB7', dashArray: '5,5' }
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            border: { width: 2, color: '#794F1B', dashArray: '5,5' }
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Stacking group

Use the stackingGroup property to group stacked bars and 100% stacked bars. Bars with the same group name are stacked on top of each other.

import { Chart, StackingBarSeries } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries);

let chart: Chart = new Chart({
    primaryXAxis: {
        title: 'Year',
        minimum:2006,
        maximum:2015,
        interval:1
    },
    primaryYAxis:
    {
        title: 'Sales Percentage(%)'
    },
    series: [
        {
            type: 'StackingBar', name: 'John',
            //Stacking group for stacked bar
            stackingGroup: 'JohnAndAndrew',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, 
        {
            type: 'StackingBar', name: 'Andrew', 
            stackingGroup: 'JohnAndAndrew',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, 
        {
            type: 'StackingBar', name: 'Thomas', 
            stackingGroup: 'ThomasAndMichael',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }, 
        {
            type: 'StackingBar', name: 'Michael', 
            stackingGroup: 'ThomasAndMichael',
            dataSource: stackedData, xName: 'x', yName: 'y3'
        }
    ],
    title: 'Sales by year'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 2007, y: 453, y1: 876, y2: 356, y3: 122 },
    { x: 2008, y: 354, y1: 564, y2: 876, y3: 444 },
    { x: 2009, y: 282, y1: 242, y2: 898, y3: 222 },
    { x: 2010, y: 321, y1: 121, y2: 567, y3: 231 },
    { x: 2011, y: 333, y1: 343, y2: 456, y3: 122 },
    { x: 2012, y: 351, y1: 451, y2: 345, y3: 333 },
    { x: 2013, y: 403, y1: 203, y2: 543, y3: 354 },
    { x: 2014, y: 421, y1: 431, y2: 654, y3: 100 }
];

Cylindrical stacked bar chart

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

import { Chart, StackingBarSeries } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries);

let chart: Chart = new Chart({
    series: [
        {
            //Series type as stacked bar with cylinder shape
            type: 'StackingBar', columnFacet: 'Cylinder',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, 
        {
            type: 'StackingBar', columnFacet: 'Cylinder',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, 
        {
            type: 'StackingBar', columnFacet: 'Cylinder',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ]
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 2000, y: 0.61, y1: 0.03, y2: 0.48},
    { x: 2001, y: 0.81, y1: 0.05, y2: 0.53 },
    { x: 2002, y: 0.91, y1: 0.06, y2: 0.57 },
    { x: 2003, y: 1, y1: 0.09, y2: 0.61 }, 
    { x: 2004, y: 1.19, y1: 0.14, y2: 0.63 },
    { x: 2005, y: 1.47, y1: 0.20, y2: 0.64 },
    { x: 2006, y: 1.74, y1: 0.29, y2: 0.66 }, 
    { x: 2007, y: 1.98, y1: 0.46, y2: 0.76 },
    { x: 2008, y: 1.99, y1: 0.64, y2: 0.77 },
    { x: 2009, y: 1.70, y1: 0.75, y2: 0.55 }
];

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.

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            emptyPointSettings: {
                mode: 'Zero'
            }
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            emptyPointSettings: {
                mode: 'Gap'
            }
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            emptyPointSettings: {
                mode: 'Average'
            }
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: null }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: undefined, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: null, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Fill

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

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            emptyPointSettings: {
                mode: 'Zero'
            }
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            emptyPointSettings: {
                mode: 'Gap'
            }
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            emptyPointSettings: {
                mode: 'Average',
                fill: 'red'
            }
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: null }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: undefined, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: null, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Border

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

import { Chart, StackingBarSeries, Category, Legend } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis: {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar',
            name: 'Apple',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y',
            emptyPointSettings: {
                mode: 'Zero'
            }
        },
        {
            type: 'StackingBar',
            name: 'Orange',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y1',
            emptyPointSettings: {
                mode: 'Gap'
            }
        },
        {
            type: 'StackingBar',
            name: 'Wastage',
            dataSource: stackedData,
            xName: 'x',
            yName: 'y2',
            emptyPointSettings: {
                mode: 'Average',
                fill: 'red',
                border: { width: 2, color: 'green' }
            }
        }
    ],
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: null }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: undefined, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: null, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

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.

import { Chart, StackingBarSeries, Category, Legend, ISeriesRenderEventArgs } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison',
    seriesRender: (args: ISeriesRenderEventArgs) => {
        if (args.series.index === 0) {
            args.fill = '#ff4251';
        }
        else if (args.series.index === 1) {
            args.fill = '#4C4C4C';
        }
        else if (args.series.index === 2) {
            args.fill = '#794F1B';
        }
    }
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Point render

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

import { Chart, StackingBarSeries, Category, Legend, IPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison',
    pointRender: (args: IPointRenderEventArgs) => {
        if (args.point.series.index % 2 !== 0) {
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Stack labels

The stack labels in stacked charts display cumulative total values for stack segments directly using data labels. If a stacked point has negative values, the stack labels are displayed below the point.

import { Chart, StackingBarSeries, Category, Legend, DataLabel } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend, DataLabel);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y', marker:{dataLabel : {visible : true}},
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1', marker:{dataLabel : {visible : true}},
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2', marker:{dataLabel : {visible : true}},
        }
    ],
    stackLabels: {
        visible: true
    },
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Stack labels customization

Stack labels have various properties for customization to enhance the visual based on your requirements:

  • visible - Specifies whether stack labels are visible. Setting to true will display the labels. Default is false.
  • fill - Defines the background color of the stack labels. Accepts valid CSS color strings (hex, RGBA, etc.). Default is transparent.
  • format - Formats the text displayed in the stack labels. Supports placeholders like {value}. Default is null.
  • angle - Specifies the rotation angle for stack labels in degrees. Default is 0.
  • rx - Defines the rounded corner radius along the X-axis (horizontal direction) for the stack label background. Default is 5.
  • ry - Defines the rounded corner radius along the Y-axis (vertical direction) for the stack label background. Default is 5.
  • margin - Configures the margin around the stack label (left, right, top, and bottom).
  • border - Configures the appearance of the stack label’s border.
  • font - Customizes the stack label text, including font size, color, style, weight, and family.
import { Chart, StackingBarSeries, Category, Legend, DataLabel } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend, DataLabel);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y', marker:{dataLabel : {visible : true}},
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1', marker:{dataLabel : {visible : true}},
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2', marker:{dataLabel : {visible : true}},
        }
    ],
    stackLabels: { visible: true, fill: 'rgba(0, 123, 255, 0.5)', format: '{value}', angle: 45, rx: 10, ry: 10, margin: { left: 10, right: 10, top: 10, bottom: 10 }, border: { width: 2, color: '#000' }, font: { size: '14px', color: '#fff', weight: 'bold', family: 'Arial', textAlignment: 'Left' } },
    title: 'Sales Comparison'
}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

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.

import { Chart, StackingBarSeries, Category, Legend, IPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            cornerRadius: { topRight: 10, bottomRight: 10 },
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           cornerRadius: { topRight: 10, bottomRight: 10 },
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison',

}, '#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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

Point corner radius

We can customize the corner radius for individual points in the chart series using the pointRender event by setting the [cornerRadius] (../../api/chart/iPointRenderEventArgs/#cornerradius) property in its event argument.

import { Chart, StackingBarSeries, Category, Legend, IPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { stackedData } from './datasource.ts';
Chart.Inject(StackingBarSeries, Category, Legend);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
        title: 'Months'
    },
    primaryYAxis:
    {
        title: 'Percentage (%)',
        minimum: -20,
        maximum: 100,
        labelFormat: '{value}%',
        edgeLabelPlacement: 'Shift'
    },
    series: [
        {
            //Series type as stacked bar
            type: 'StackingBar', name: 'Apple',
            dataSource: stackedData, xName: 'x', yName: 'y'
        }, {
            type: 'StackingBar', name: 'Orange',
            dataSource: stackedData, xName: 'x', yName: 'y1'
        }, {
           type: 'StackingBar', name: 'Wastage',
            dataSource: stackedData, xName: 'x', yName: 'y2'
        }
    ],
    title: 'Sales Comparison',
    pointRender: (args: IPointRenderEventArgs) => {
        if (args.point.index === 1 && args.point.series.index === 1) {
            args.cornerRadius = { topLeft: 0, bottomLeft: 0, topRight: 10, bottomRight: 10 };
        }
        if (args.point.index === 4 && args.point.series.index === 1) {
            args.cornerRadius = { topLeft: 0, bottomLeft: 0, topRight: 10, bottomRight: 10 };
        }
        if (args.point.index === 6 && args.point.series.index === 1) {
            args.cornerRadius = { topLeft: 0, bottomLeft: 0, topRight: 10, bottomRight: 10 };
        }
        if (args.point.index === 8 && args.point.series.index === 1) {
            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://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let stackedData: Object[] = [
    { x: 'Jan', y: 6,  y1: 6,  y2: -1 }, 
    { x: 'Feb', y: 8 , y1: 8,  y2: -1.5 },
    { x: 'Mar', y: 12, y1: 11, y2: -2 }, 
    { x: 'Apr', y: 15, y1: 16, y2: -2.5 },
    { x: 'May', y: 20, y1: 21, y2: -3 }, 
    { x: 'Jun', y: 24, y1: 25, y2: -3.5 },
    { x: 'Jul', y: 28, y1: 27, y2: -4 }, 
    { x: 'Aug', y: 32, y1: 31, y2: -4.5 },
    { x: 'Sep', y: 33, y1: 34, y2: -5 }, 
    { x: 'Oct', y: 35, y1: 34, y2: -5.5 },
    { x: 'Nov', y: 40, y1: 41, y2: -6 }, 
    { x: 'Dec', y: 42, y1: 42, y2: -6.5 }
];

See also