Initial scrollbar in EJ2 TypeScript Chart control

8 May 202310 minutes to read

By setting zoomFactor in primaryXAxis and isZoomed value as true in load event and enableScrollbar value as true inzoomSettings, you can make the scrollbar visible in initial rendering of chart.

import { Chart, LineSeries, DateTime, Legend, Tooltip, ILoadedEventArgs, ChartTheme, Zoom, ScrollBar } from '@syncfusion/ej2-charts';
Chart.Inject(LineSeries, DateTime, Legend, Tooltip, Zoom, ScrollBar);
    let chart: Chart = new Chart({
        primaryXAxis: {
            zoomFactor: 0.3,
            valueType: 'DateTime',
            labelFormat: 'y',
            intervalType: 'Years',
            edgeLabelPlacement:'Shift'
        },
        primaryYAxis:
        {
            labelFormat: '{value}%',
            rangePadding: 'None',
            minimum: 0,
            maximum: 100,
            interval: 20,
        },
        series: [
            {
                type: 'Line',
                dataSource: [
                    { x: new Date(2005, 0, 1), y: 21 },
                    { x: new Date(2006, 0, 1), y: 24 },
                    { x: new Date(2007, 0, 1), y: 36 },
                    { x: new Date(2008, 0, 1), y: 38 },
                    { x: new Date(2009, 0, 1), y: 54 },
                    { x: new Date(2010, 0, 1), y: 21 },
                    { x: new Date(2011, 0, 1), y: 24 },
                    { x: new Date(2012, 0, 1), y: 36 },
                    { x: new Date(2013, 0, 1), y: 38 },
                    { x: new Date(2014, 0, 1), y: 54 },
                    { x: new Date(2015, 0, 1), y: 21 },
                    { x: new Date(2016, 0, 1), y: 24 },
                    { x: new Date(2017, 0, 1), y: 36 },
                    { x: new Date(2018, 0, 1), y: 38 },
                ],
                xName: 'x', width: 2, marker: {
                    visible: true,
                    width: 10,
                    height: 10
                },
                yName: 'y', name: 'Germany',
            }
        ],
         zoomSettings:
                        {
                             enableMouseWheelZooming: true,
                             enablePinchZooming: true,
                             enableSelectionZooming: true,
                             mode: 'X',
                             enableScrollbar: true,
                        },
        title: 'Inflation - Consumer Price',
        tooltip: {
            enable: true
        },
        load: (args: ILoadedEventArgs) => {
              args.chart.zoomModule.isZoomed = true;
        }
    });
    chart.appendTo('#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="https://cdn.syncfusion.com/ej2/material.css" rel="stylesheet" rel="stylesheet">
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.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 class="col-sm-8">
            <div class="row">
                <div class="col-sm-4">  
                  <div id='container'>
                    <div id='element'  style="width:350px; height:350px;float:left">
                    </div>
                    <label id="lbl"></label>
                  </div>
                </div>
                <div class="col-sm-4" style="width:200px; height:350px;float: right">
                  <div id='Grid'>
                  </div>
                </div>
            </div>
    </div>
</body> 
</html>