Stacked line Chart in EJ2 TypeScript control

13 Dec 202424 minutes to read

100% Stacked line

To render a 100% stacked line 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 StackingLine100 in your chart configuration. This indicates that the data should be represented as a 100% stacked line chart, with each data series shown as a percentage of the total. This chart type ensures that all lines are stacked to always reach 100% at each data point, allowing for easy comparison of the proportional relationships between the series without the influence of absolute values.
Inject the StackingLineSeries module: Use the Chart.Inject(StackingLineSeries) method to inject the StackingLineSeries module into your chart. This step is essential, as it ensures that the necessary functionalities for rendering 100% stacked line series are available in your chart.

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle'
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

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.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle'
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Series customization

The following properties can be used to customize the 100% stacked line series.

Fill

The fill property determines the color applied to the series.

index.ts
index.html
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', fill: '#ff4251'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', fill: '#4C4C4C'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', fill: '#794F1B'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', fill: '#1a9a6f'
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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>

The fill property can be used to apply a gradient color to the 100% stacked line 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.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', fill: 'url(#gradient1)'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', fill: 'url(#gradient2)'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', fill: 'url(#gradient3)'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', fill: 'url(#gradient4)'
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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>
    
    <svg style="width:1px; height:1px">
        <defs>
            <linearGradient id="gradient4">
                <stop offset="0%" style="stop-color:darkviolet;stop-opacity:5" />
                <stop offset="50%" style="stop-color:darkgoldenrod;stop-opacity:5" />
            </linearGradient>
        </defs>
    </svg>
</body>

</html>
export let chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

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.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', opacity: 0.7
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', opacity: 0.7
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', opacity: 0.7
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', opacity: 0.7
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Dash array

The dashArray property determines the pattern of dashes and gaps in the series.

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', dashArray: '5,5'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', dashArray: '5,5'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', dashArray: '5,5'
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', dashArray: '5,5'
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Width

The width property specifies the stroke width applied to the series.

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

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.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y', name: 'John', width: 2,
            emptyPointSettings: { mode: 'Average' }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2,
            emptyPointSettings: { mode: 'Gap' }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: null, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: undefined, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Fill

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

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y', name: 'John', width: 2,
            emptyPointSettings: { mode: 'Average', fill: 'red' }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2,
            emptyPointSettings: { mode: 'Gap' }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: null, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: undefined, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Border

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

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y', name: 'John', width: 2,
            emptyPointSettings: { mode: 'Average', fill: 'red', border: { width: 2, color: 'green' } }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2,
            emptyPointSettings: { mode: 'Gap' }
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true, width: 7, height: 7, isFilled: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: null, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: undefined, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

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.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries, ISeriesRenderEventArgs } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    },
    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';
        }
        else if (args.series.index === 3) {
            args.fill = '#1a9a6f';
        }
    }
}, '#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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];

Point render

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

index.ts
index.html
datasource.ts
import { Chart, Category, Legend, Tooltip, StackingLineSeries, IPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { chartData } from './datasource.ts';
Chart.Inject(StackingLineSeries, Category, Legend, Tooltip);

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1, 
        valueType: 'Category'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        interval: 20
    },
    chartArea: { border: { width: 0 } },
    //Initializing Chart Series
    series: [
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y', name: 'John', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y1', name: 'Peter', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y2', name: 'Steve', width: 2
        },
        {
            type: 'StackingLine100', dataSource: chartData, marker: { visible: true },
            xName: 'x', yName: 'y3', name: 'Charle', width: 2
        }
    ],
    //Initializing User Interaction Tooltip
    tooltip: {
        enable: true
    },
    pointRender: (args: IPointRenderEventArgs) => {
        if (args.point.y < 70) {
            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 chartData: Object[] = [
    { x: 'Food', y: 90, y1: 40, y2: 70, y3: 120 },
    { x: 'Transport', y: 80, y1: 90, y2: 110, y3: 70 },
    { x: 'Medical', y: 50, y1: 80, y2: 120, y3: 50 },
    { x: 'Clothes', y: 70, y1: 30, y2: 60, y3: 180 },
    { x: 'Personal Care', y: 30, y1: 80, y2: 80, y3: 30 },
    { x: 'Books', y: 10, y1: 40, y2: 30, y3: 270 },
    { x: 'Fitness', y: 100, y1: 30, y2: 70, y3: 40 },
    { x: 'Electricity', y: 55, y1: 95, y2: 55, y3: 75 },
    { x: 'Tax', y: 20, y1: 50, y2: 40, y3: 65 },
    { x: 'Pet Care', y: 40, y1: 20, y2: 80, y3: 95 },
    { x: 'Education', y: 45, y1: 15, y2: 45, y3: 195 },
    { x: 'Entertainment', y: 75, y1: 45, y2: 65, y3: 115 }
];