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Dotted Line in JavaScript Chart control

By using annotation, you can add dotted lines in the chart.

To add dotted lines in the chart, follow the given steps:

Step 1:

Initialize the custom elements by using the annotation property.

By setting coordinateUnits value as point in annotation object you can placed dotted lines in the chart based on point x and y values.

import { Chart, LineSeries, Category, ChartAnnotation } from '@syncfusion/ej2-charts';
import { columnData } from './datasource.ts';
Chart.Inject(LineSeries, Category, ChartAnnotation);

let chart: Chart = new Chart({
    primaryXAxis: {
        valueType: 'Category',
     primaryYAxis: {
      title: 'Medals'
        content: '<div id ="test" style="border-top:3px dashed grey;border-top-width: 2px; width: 10000px"></div>',
        x: 'France',
        y: 50,
        coordinateUnits: 'Point',
        Region: 'Chart'
        dataSource: columnData,
        xName: 'country', yName: 'gold',
        type: 'Line'

}, '#element');
<!DOCTYPE html>
<html lang="en">

    <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=""></script>
    <script src="systemjs.config.js"></script>

    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
		   <div id='element1'></div>