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Timeline in JavaScript (ES5) Gantt control

06 Jun 2023 / 4 minutes to read

In the Gantt control, timeline is used to represent the project duration as individual cells with defined unit and formats.

Timeline view modes

Gantt contains the following in-built timeline view modes:

Hour
Day
Week
Month
Year

Timescale mode in Gantt can be defined by using timelineViewMode property and also we can define timescale mode of top tier and bottom tier by using topTier.unit and bottomTier.unit properties.

Week timeline mode

In the Week timeline mode, the upper part of the schedule header displays the weeks, whereas the bottom half of the header displays the days. Refer to the following code example.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: WeekData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			dependency: 'Predecessor',
            child: 'subtasks'
        },
		timelineSettings: {
			timelineViewMode:'Week'
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Month timeline mode

In the Month timeline mode, the upper part of the schedule header displays the months, whereas the bottom header of the schedule displays its corresponding weeks. Refer to the following code example.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: MonthData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
		    timelineViewMode:'Month',
			timelineUnitSize:150
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Year timeline mode

In the Year timeline mode, the upper schedule header displays the years whereas, the bottom header displays its corresponding months. Refer to the following code example.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: YearData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
		    timelineViewMode:'Year',
			timelineUnitSize:70
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Day timeline mode

In the Day timeline mode, the upper part of the header displays the days whereas, the bottom schedule header displays its corresponding hours. Refer to the following code example.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: DayData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
		    timelineViewMode:'Day'
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Hour timeline mode

An Hour timeline mode tracks the tasks in minutes scale. In this mode, the upper schedule header displays hour scale and the lower schedule header displays its corresponding minutes.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: HourData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
		    timelineViewMode:'Hour'
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Week start day customization

In the Gantt control, you can customize the week start day using the weekStartDay property. By default, the weekStartDay is set to 0, which specifies the Sunday as a start day of the week. But, you can customize the week start day by using the following code example.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: GanttData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
			timelineViewMode:'Week',
            weekStartDay:3
        }
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Customize automatic timescale update action

In the Gantt control, the schedule timeline will be automatically updated when the tasks date values are updated beyond the project start date and end date ranges. This can be enabled or disabled using the updateTimescaleView property.

Source

Preview

index.js

index.html

var ganttChart = new ej.gantt.Gantt({
        dataSource: GanttData,
		height:'450px',
		taskFields: {
            id: 'TaskID',
            name: 'TaskName',
            startDate: 'StartDate',
			duration: 'Duration',
            progress: 'Progress',
			child: 'subtasks'
        },
		timelineSettings: {
            updateTimescaleView:false
        },
		editSettings:{
			allowEditing:true,
			allowTaskbarEditing:true
		}
});
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/ej2/21.2.3/material.css" rel="stylesheet" type="text/css">
    
    
<script src="https://cdn.syncfusion.com/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.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>

Contents

Timeline view modes
Week timeline mode
Month timeline mode
Year timeline mode
Day timeline mode
Hour timeline mode
Week start day customization
Customize automatic timescale update action

Contents

Timeline view modes
Week timeline mode
Month timeline mode
Year timeline mode
Day timeline mode
Hour timeline mode
Week start day customization
Customize automatic timescale update action