Data markers in EJ2 JavaScript Gantt control

2 May 20233 minutes to read

Data markers are a set of events used to represent the schedule events for a task. Data markers are defined in data source as array of objects, and this value is mapped to the Gantt control using the taskFields.indicators property. You can represent more than one data marker in a task.

Data markers can be defined using the following properties:

  • date: Defines the date of indicator.
  • iconClass: Defines the icon class of indicator.
  • name: Defines the name of indicator.
  • tooltip: Defines the tooltip of indicator.

Note: Data Marker tooltip will be rendered only if tooltip property has value.

The following code example demonstrates how to implement data markers in the Gantt chart.

var ganttChart = new ej.gantt.Gantt({
    dataSource: GanttData,
    height: '450px',
    taskFields: {
        id: 'TaskID',
        name: 'TaskName',
        startDate: 'StartDate',
        resourceInfo: 'resources',
        duration: 'Duration',
        progress: 'Progress',
        dependency: 'Predecessor',
        parentID: 'ParentID',
        indicators: 'Indicators'
    },
});
ganttChart.appendTo('#Gantt');
<!DOCTYPE html>
<html lang="en">
    <head>
        <title>EJ2 Gantt</title>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta name="description" content="Typescript Gantt Controls">
        <meta name="author" content="Syncfusion">
        <link href="index.css" rel="stylesheet">
        <link href="https://cdn.syncfusion.com/ej2/31.2.2/material.css" rel="stylesheet" type="text/css">
        <script src="https://cdn.syncfusion.com/ej2/31.2.2/dist/ej2.min.js" type="text/javascript"></script>
        <script src="es5-datasource.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="Gantt"></div>        
        </div>
        <script>
        var ele = document.getElementById('container');
        if(ele) {
        ele.style.visibility = "visible";
        }   
        </script>
        <script src="index.js" type="text/javascript"></script>
    </body>
</html>