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Dotted Line in JavaScript (ES5) Chart control

08 Apr 2021 / 1 minute to read

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.

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var columnData = [{ country: "USA", gold: 50 }, { country: "China", gold: 40 }, { country: "Japan", gold: 70 },
{ country: "Australia", gold: 60 }, { country: "France", gold: 50 }, { country: "Germany", gold: 40 },
{ country: "Italy", gold: 40 }, { country: "Sweden", gold: 30 }];
   var chart = new ej.charts.Chart({
        primaryXAxis: {
            valueType: 'Category',
        primaryYAxis: {
            title: 'Medals'
        annotations: [{
                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'
        series: [{
                dataSource: columnData,
                xName: 'country', yName: 'gold',
                type: 'Line'
    }, '#element');
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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="" type="text/javascript"></script>

    <div id="container">
        <div id="element"></div>
		   <div id="element1"></div>

var ele = document.getElementById('container');
if(ele) { = "visible";
<script src="index.js" type="text/javascript"></script>