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Dynamic Chart in JavaScript Chart control

08 Apr 2021 / 2 minutes to read

By using html button, you can add the chart dynamically when click the button.

To add the chart dynamically through button click, follow the given steps:

Step 1:

Initially create the html button.

Then create chart inside of button onClick function. Now click the button charts will render based on click count.

The following code sample demonstrates the output.

Source
Preview
index.ts
index.html
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import { Chart, LineSeries, DateTime, Legend, Tooltip, ILoadedEventArgs, ChartTheme } from '@syncfusion/ej2-charts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(LineSeries, DateTime, Legend, Tooltip);


let count: number = 0;  
document.getElementById('btn').onclick=()=> {

      //Create div element dynamically and append to DOM
        var chartEle = document.createElement('div');
        chartEle.id = 'chartContainer' + count;
        document.getElementsByTagName('body')[0].appendChild(chartEle);

        //Created chart here
        var chart = new Chart({
            series: [{
                type: 'Line', xName: 'x', width: 2, marker: { visible: true },
                yName: 'y', name: 'Germany',
                dataSource: [{ x: 1, y: 21 },{ x: 2, y: 24 },{ x: 3, y: 36 },
                        { x: 4, y: 38 },{ x: 5, y: 54 },{ x: 6, y: 57 },{ x: 7, y: 70 }],
                }],
            title: 'Inflation - Consumer Price', tooltip: { enable: true }, height:'400', width: '800'
        });
        chart.appendTo('#' + chartEle.id);
        count++;
}
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<!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>
</head>

<body>
    <div id='loader'>Loading....</div>
      <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
    <button id="btn">Add Chart</button>
</body>

</html>