Data editing in EJ2 JavaScript Chart control

8 May 20238 minutes to read

Enable Data Editing

We can use the data editing through inject the DataEditing module in the chart. It provides drag and drop support to the rendered points. Now, we can change the location or value of the point based on its y value. To enable the data editing, set the enable property to true in the drag settings of the series. Also, we can set color using fill property and set the data editing minimum and maximum range using minY and maxY properties.

index.js
index.html
var chart = new ej.charts.Chart({
 primaryXAxis: {
        valueType: 'DateTime',
        labelFormat: 'y',
        intervalType: 'Years',
        edgeLabelPlacement: 'Shift',
        majorGridLines: { width: 0 }
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        labelFormat: '{value}%',
        rangePadding: 'None',
        minimum: 0,
        maximum: 100,
        interval: 20,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 },
        minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Column',
            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: 57 },
                { x: new Date(2011, 0, 1), y: 70 }
            ],
            xName: 'x', width: 2, marker: {
                visible: true,
                width: 10,
                height: 10
            },
            yName: 'y', name: 'Germany', dragSettings: { enable: true, }
        },
        {
            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: 57 },
                { x: new Date(2011, 0, 1), y: 70 }
            ],
            xName: 'x', width: 2, marker: {
                visible: true,
                width: 10,
                height: 10
            },
            yName: 'y', name: 'Germany', dragSettings: { enable: true, }
        }
    ],

    //Initializing Chart title
    title: 'Inflation - Consumer Price',
    //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://cdn.syncfusion.com/ej2/25.1.35/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element"></div>
    </div>
     <script id="Unemployment" type="text/x-template">
      <div id='templateWrap'>
     <table style="width:100%;  border: 1px solid black;">
     <tr><th colspan="2" bgcolor="#00FFFF">Unemployment</th></tr>
     <tr><td bgcolor="#00FFFF">${x}:</td><td bgcolor="#00FFFF">${y}</td></tr>
    </table>
    </div>
  </script>


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