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Columns in JavaScript Gantt control

22 Jul 2021 / 20 minutes to read

The column displays information from a bound data source, and you can edit the values of column to update the task details through TreeGrid. The operations such as sorting, filtering, and searching can be performed based on column definitions. To display a Gantt column, the field property should be mapped from the data source to the column.

If the column field is not specified in the data source, the column values will be empty.

The treeColumnIndex property is used to define the expander column in the Gantt control to expand and collapse the child rows.

Defining columns

Using the columns property, you can define the columns in Gantt. If the columns are not defined, then the default columns will be rendered based on the mapped data source fields in the taskFields property. Refer to the following code example for defining the columns in Gantt along with their widths.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';

let GanttData: Object[]  = [
        {
            TaskID: 1,
            TaskName: 'Project Initiation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            subtasks: [
                { TaskID: 2, TaskName: 'Identify Site location', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
                { TaskID: 3, TaskName: 'Perform Soil test', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50  },
                { TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Progress: 50 },
            ]
        },
        {
            TaskID: 5,
            TaskName: 'Project Estimation',
            StartDate: new Date('04/02/2019'),
            EndDate: new Date('04/21/2019'),
            subtasks: [
                { TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                { TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 },
                { TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'), Duration: 3, Progress: 50 }
            ]
        },
    ];

let gantt: Gantt = new Gantt({
    dataSource: GanttData,
    taskFields: {
        id: 'TaskID',
        name: 'TaskName',
        startDate: 'StartDate',
        duration: 'Duration',
        progress: 'Progress',
        child: 'subtasks',
    },
    height: '450px',
    splitterSettings: {
        columnIndex: 2
    },
    columns: [
        { field: 'TaskID', width: '150' },
        { field: 'TaskName', width: '250' }
    ]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

Custom column header

The column header text can be defined using the headerText property, and you can customize the column headers using the headerTemplate property.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
    dataSource: GanttData,
    taskFields: {
        id: 'TaskID',
        name: 'TaskName',
        startDate: 'StartDate',
        duration: 'Duration',
        progress: 'Progress',
        child: 'subtasks',
    },
    height: '450px',
    splitterSettings: {
        columnIndex: 4
    },
    columns: [
        { field: 'TaskName', headerTemplate: '#projectName', width: '150' },
        { field: 'StartDate', headerTemplate: '#dateTemplate', width: '150' },
        { field: 'Duration', headerTemplate: '#durationTemplate', headerText: 'Duration', width: '150' },
        { field: 'Progress', headerTemplate: '#progressTemplate', headerText: 'Progress', width: '150' },
    ]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
   
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
	
	<script type="text/x-template" id="projectName">
        <div>
            <div>
                <img src="taskname.png" width="20" height="20" class="e-image" />  Task Name
            </div>
        </div>
    </script>
    <script type="text/x-template" id="dateTemplate">
        <div>
            <div>
                <img src="startdate.png" width="20" height="20" class="e-image" />  Start Date
            </div>
        </div>
    </script>
    <script type="text/x-template" id="durationTemplate">
        <div>
            <div>
                <img src="duration.png" width="20" height="20" class="e-image" />  Duration
            </div>
        </div>
    </script>
    <script type="text/x-template" id="progressTemplate">
        <div>
            <div>
                <img src="progress.png" width="20" height="20" class="e-image" />  Progress
            </div>
        </div>
    </script>


</body></html>

Format

To format the cell values based on a specific culture, use the columns.format property. The Gantt control uses the Internationalization library to format number and date values.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
    dataSource: GanttData,
    taskFields: {
        id: 'TaskID',
        name: 'TaskName',
        startDate: 'StartDate',
        duration: 'Duration',
        progress: 'Progress',
        child: 'subtasks'
    },
    splitterSettings: {
        columnIndex: 3
    },
    height: '450px',
    columns: [
        { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
        { field: 'Progress', headerText: 'Progress', width: '150', format: 'C' },
        { field: 'TaskName', headerText: 'Task Name', width: '150' },
        { field: 'StartDate', headerText: 'Start Date', width: '150' },
        { field: 'Duration', headerText: 'Duration', width: '150' }
    ]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

By default, the number and date values are formatted in en-US culture.

Number formatting

The number or integer values can be formatted using the following format strings.

Format	Description
N	Denotes numeric type.
C	Denotes currency type.
P	Denotes percentage type

Date formatting

You can format date values either using the built-in date format string or a custom format string.

For the built-in date format, you can specify the columns.format property as string (example: yMd).

You can also use the custom format string to format the date values. Some of the custom formats and the formatted date values are given in the following table.

Format	Formatted value
{ type:‘date’, format:‘dd/MM/yyyy’ }	04/07/2019
{ type:‘date’, format:‘dd.MM.yyyy’ }	04.07.2019
{ type:‘date’, skeleton:‘short’ }	7/4/19
{ type: ‘dateTime’, format: ‘dd/MM/yyyy hh:mm a’ }	04/07/2019 12:00 AM
{ type: ‘dateTime’, format: ‘MM/dd/yyyy hh:mm:ss a’ }	07/04/2019 12:00:00 AM

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    columnIndex: 3
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '150' },
    { field: 'Progress', headerText: 'Progress', width: '150', format: 'C' },
    { field: 'StartDate', headerText: 'Start Date', width: '150', format: { format: 'dd/MM/yyyy', type: 'date' } },
    { field: 'Duration', headerText: 'Duration', width: '150' }
]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

Column reordering

The column reordering can be done by dragging a column header from one index to another index within the TreeGrid. To enable reordering, set the allowReordering property to true.

To use the column reordering feature, inject the Reorder module to the Gantt control.

Source

Preview

index.ts

index.html

import { Gantt, Reorder } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Reorder);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
allowReordering: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
height: '450px',
splitterSettings: {
    columnIndex: 5
}
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

You can disable the reordering of a particular column by setting the columns.allowReordering property to false.

Reorder multiple columns

Multiple columns can be reordered at a time by using the reorderColumns method.

Source

Preview

index.ts

index.html

import { Gantt, Reorder } from '@syncfusion/ej2-gantt';
import { Button } from '@syncfusion/ej2-buttons';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Reorder);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
allowReordering: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
height: '450px',
splitterSettings: {
    position: '100%'
},
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '150' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '150' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
]
});
gantt.appendTo('#Gantt');

let reorderMultipleCols: Button = new Button();
reorderMultipleCols.appendTo('#reorderMultipleCols');

document.getElementById('reorderMultipleCols').addEventListener('click', () => {
gantt.reorderColumns('TaskName', 'Progress');
});

<!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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    
    <div id='loader'>Loading....</div>
    <div id='container'>
	<button id="reorderMultipleCols">Reorder Task ID and Task Name to Last</button> 
        <div id='Gantt'></div>        
    </div>
</body>

</html>

Reorder Events

During the reorder action, the gantt component triggers the below three events.

The columnDragStart event triggers when column header element drag (move) starts.
The columnDrag event triggers when column header element is dragged (moved) continuously.
The columnDrop event triggers when a column header element is dropped on the target column.

Source

Preview

index.ts

index.html

import { Gantt, Reorder } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Reorder);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
allowReordering: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    columnIndex: 4
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '150' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '150' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
],
columnDragStart: () => {
    alert('columnDragStart event is Triggered');
},
columnDrag: () => {
    alert('columnDrag event is Triggered');
},
columnDrop: () => {
    alert('columnDrop event is Triggered');
}
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
    
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>        
    </div>
</body>

</html>

Column resizing

The column width can be resized by clicking and dragging the right edge of the column header. While dragging, the width of the column will be resized immediately. Each column can be auto resized by double-clicking the right edge of the column header to fit the width of that column based on the widest cell content. To resize the column, set the allowResizing property to true. The following code example shows how to enable the column resize feature in the Gantt control.

To resize the column, inject the Resize module into the Gantt control.

Source

Preview

index.ts

index.html

import { Gantt, Resize } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Resize);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
allowResizing: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    columnIndex: 4
},
height: '450px'
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

You can disable resizing for a particular column by setting the columns.allowResizing to false.

Defining minimum and maximum column width

The column resizing can be restricted between minimum and maximum widths by defining the columns->minWidth and columns->maxWidth properties.

In the following example, the minimum and maximum widths are defined for the Duration, and Task Name columns.

Source

Preview

index.ts

index.html

import { Gantt, Resize } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Resize);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
allowResizing: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    columnIndex: 5
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '200', minWidth: '150', maxWidth: '250', },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '100', minWidth: '50', maxWidth: '200' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
]

});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

Column template

A column template is used to customize the column’s look. The following code example explains how to define the custom template in Gantt using the template property.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';

let ProjectResources: Object[]  = [
{ resourceId: 1, resourceName: 'Martin Tamer' },
{ resourceId: 2, resourceName: 'Rose Fuller' },
{ resourceId: 3, resourceName: 'Margaret Buchanan' },
{ resourceId: 4, resourceName: 'Fuller King' },
{ resourceId: 5, resourceName: 'Davolio Fuller' },
{ resourceId: 6, resourceName: 'Van Jack' },
{ resourceId: 7, resourceName: 'Fuller Buchanan' },
{ resourceId: 8, resourceName: 'Jack Davolio' },
{ resourceId: 9, resourceName: 'Tamer Vinet' },
{ resourceId: 10, resourceName: 'Vinet Fuller' },
{ resourceId: 11, resourceName: 'Bergs Anton' },
{ resourceId: 12, resourceName: 'Construction Supervisor' }
];

let GanttData: Object[]  = [
{
    TaskID: 1,
    TaskName: 'Project initiation',
    StartDate: new Date('04/02/2019'),
    EndDate: new Date('04/21/2019'),
    subtasks: [
        {TaskID: 2, TaskName: 'Identify site location', StartDate: new Date('04/02/2019'), Duration: 4,Progress: 50, resources: [1]},
        {TaskID: 3, TaskName: 'Perform soil test', StartDate: new Date('04/02/2019'), Duration: 4, Predecessor: '2',Progress: 50, resources: [2]},
        {TaskID: 4, TaskName: 'Soil test approval', StartDate: new Date('04/02/2019'), Duration: 4, Predecessor: '3', Progress: 50 ,resources: [3]},
    ]
},
{
    TaskID: 5,
    TaskName: 'Project estimation',
    StartDate: new Date('04/02/2019'),
    EndDate: new Date('04/21/2019'),
    subtasks: [
        {TaskID: 6, TaskName: 'Develop floor plan for estimation', StartDate: new Date('04/04/2019'),Duration: 3, Predecessor: '4', Progress: 50, resources: [4]},
        {TaskID: 7, TaskName: 'List materials', StartDate: new Date('04/04/2019'),Duration: 3, Predecessor: '6', resources: [3],Progress: 50},
        {TaskID: 8, TaskName: 'Estimation approval', StartDate: new Date('04/04/2019'),Duration: 3, Predecessor: '7',
        }
    ]
}];

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    resourceInfo: 'resources',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
rowHeight: 50,
splitterSettings: {
    columnIndex: 3
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '150' },
    { field: 'resources', headerText: 'Resources', width: '250', template: '#columnTemplate' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '150' },
    { field: 'Progress', headerText: 'Progress', width: '150' },
],
resourceFields: {
    id: 'resourceId',
    name: 'resourceName',
},
resources: ProjectResources
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
     <script type="text/x-jsrender" id="columnTemplate">
        ${if(ganttProperties.resourceNames)}
       
         <div class="image">
                <img src="${TaskID}.png" style="height:40px;width:40px" /><div style="display:inline-block;width:100%;position:relative;left:30px;top:-14px">${ganttProperties.resourceNames}</div>
            </div>
        ${/if}
    </script>
       
     <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

The column menu has options to integrate features like sorting, filtering, and autofit. It will show a menu with the integrated feature when users click the Multiple icon of the column. To enable the column menu, you should set the showColumnMenu property to true. The default items are displayed in the following table:

Item	Description
`SortAscending`	Sort the current column in ascending order.
`SortDescending`	Sort the current column in descending order.
`AutoFit`	Auto fit the current column.
`AutoFitAll`	Auto fit all columns.
`Filter`	Show the filter option as given in the `filterSettings.type` property.

Source

Preview

index.ts

index.html

import { Gantt, Filter, Sort, Resize, ColumnMenu } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Filter, Sort, Resize, ColumnMenu);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
showColumnMenu: true,
allowFiltering: true,
allowResizing: true,
allowSorting: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
splitterSettings: {
    position: '100%'
},
height: '450px'
});

gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

You can disable the column menu for a particular column by setting the columns.showColumnMenu to false.

During the resizing action, the gantt component triggers the below two events.

The columnMenuOpen event triggers before the column menu opens.
The columnMenuClick event triggers when the user clicks the column menu of the gantt.

Source

Preview

index.ts

index.html

import { Gantt, Filter, Sort, Resize, ColumnMenu } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Filter, Sort, Resize, ColumnMenu);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
showColumnMenu: true,
allowFiltering: true,
allowResizing: true,
allowSorting: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
splitterSettings: {
    position: '100%'
},
height: '450px',
columnMenuOpen: () => {
    alert('columnMenuOpen event is Triggered');
},
columnMenuClick: () => {
    alert('columnMenuClick event is Triggered');
}
});

gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Custom column menu items can be added by defining the columnMenuItems. Actions for this customized items can be defined in the columnMenuClick event.

Source

Preview

index.ts

index.html

import { Gantt, Filter, Sort, Resize, ColumnMenu } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';
import { MenuEventArgs } from '@syncfusion/ej2-navigations';

Gantt.Inject(Filter, Sort, Resize, ColumnMenu);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
showColumnMenu: true,
allowFiltering: true,
allowResizing: true,
allowSorting: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
columnMenuItems:[{text:'Clear Sorting', id:'ganttclearsorting'}],
columnMenuClick: function(args: MenuEventArgs){
    if(args.item.id === 'ganttclearsorting'){
        gantt.clearSorting();
    }
},
sortSettings:{
    columns:[{direction: "Ascending", field: "TaskName"}]
},
splitterSettings: {
    position: '75%'
},
columns: [
    { field: 'TaskID', headerText: 'Task ID'},
    { field: 'TaskName', headerText: 'Task Name' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '100' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
],
height: '450px'
});

gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Sometimes, you have a scenario that to hide an item from column menu for particular columns. In that case, you need to define the columnMenuOpenEventArgs.hide as true in the columnMenuOpen event.

The following sample, Filter item was hidden in column menu when opens for the Task Name column.

Source

Preview

index.ts

index.html

import { Gantt, Filter, Sort, Resize, ColumnMenu } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';
import { ColumnMenuOpenEventArgs, ColumnMenuItemModel } from '@syncfusion/ej2-grids';

Gantt.Inject(Filter, Sort, Resize, ColumnMenu);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
showColumnMenu: true,
allowFiltering: true,
allowResizing: true,
allowSorting: true,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
},
splitterSettings: {
    position: '100%'
},
columns: [
    { field: 'TaskID', headerText: 'Task ID'},
    { field: 'TaskName', headerText: 'Task Name' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '100' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
],
height: '450px',
columnMenuOpen: function (args: ColumnMenuOpenEventArgs) {
    for (let item of args.items) {
        if (item.text === 'Filter' && args.column.field === 'TaskName') {
            (item as ColumnMenuItemModel).hide = true;
        } else {
            (item as ColumnMenuItemModel).hide = false;
        }
    }
},
});

gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Responsive columns

You can toggle the column visibility based on media queries, which are defined in the hideAtMedia. The hideAtMedia accepts valid Media Queries.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    position: '75%'
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID', textAlign: 'Left', width: '100' },
    { field: 'TaskName', headerText: 'Task Name', width: '200', hideAtMedia: '(min-width: 700px)' },
    { field: 'StartDate', headerText: 'Start Date', width: '150' },
    { field: 'Duration', headerText: 'Duration', width: '100', hideAtMedia: '(max-width: 500px)' },
    { field: 'Progress', headerText: 'Progress', width: '150' }
]

});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

Change tree/expander column

The tree/expander column is a column in the Gantt control, that has icons to expand or collapse the parent records. You can define the tree column index in the Gantt control by using the treeColumnIndex property and the default value of this property is 0. The following code example shows how to use this property.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    columnIndex: 3
},
height: '450px',
treeColumnIndex: 2
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>


<body>
    
    <div id='loader'>Loading....</div>
    <div id="container">
        <div id="Gantt"></div>        
    </div>
</body></html>

Show or Hide columns dynamically

You can show or hide gantt columns dynamically using external buttons by invoking the showColumn or hideColumn method.

Source

Preview

index.ts

index.html

import { Gantt, Edit, Selection } from '@syncfusion/ej2-gantt';
import { Button } from '@syncfusion/ej2-buttons';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Edit, Selection);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
splitterSettings: {
    position: '75%'
},
editSettings: {
    allowEditing: true
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID' },
    { field: 'Progress', headerText: 'Progress' },
    { field: 'TaskName', headerText: 'Task Name' },
    { field: 'StartDate', headerText: 'Start Date' },
    { field: 'Duration', headerText: 'Duration' }
]
});
gantt.appendTo('#Gantt');
let show: Button = new Button();
show.appendTo('#show');
let hide: Button = new Button();
hide.appendTo('#hide');
document.getElementById('show').addEventListener('click', () => {
   gantt.showColumn(['TaskName', 'Duration']);
});
document.getElementById('hide').addEventListener('click', () => {
   gantt.hideColumn(['TaskName', 'Duration']);
});

<!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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
	   <button id="show">Show</button>
       <button id="hide">Hide</button>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Checkbox Column

To render boolean values as checkbox in columns, you need to set displayAsCheckBox property as true.

Source

Preview

index.ts

index.html

import { Gantt } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks',
    verified: 'verified'
},
splitterSettings: {
    columnIndex: 5
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID' },
    { field: 'Progress', headerText: 'Progress' },
    { field: 'TaskName', headerText: 'Task Name' },
    { field: 'StartDate', headerText: 'Start Date' },
    { field: 'verified', headerText: 'Verified', displayAsCheckBox: true, type: 'boolean' },
    { field: 'Duration', headerText: 'Duration' }
]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Controlling Grid actions

You can enable or disable gantt action for a particular column by setting the allowFiltering, allowSorting, allowReordering, and allowEditing properties.

Source

Preview

index.ts

index.html

import { Gantt, Filter, Sort, Resize, ColumnMenu, Reorder, Selection, Edit }  from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Edit, Selection, Filter, Sort, Resize, Reorder);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    progress: 'Progress',
    child: 'subtasks'
},
allowFiltering: true,
allowSorting: true,
allowReordering: true,
splitterSettings: {
    position: '75%'
},
editSettings: {
    allowEditing: true
},
height: '450px',
columns: [
    { field: 'TaskID', headerText: 'Task ID' },
    { field: 'Progress', headerText: 'Progress', allowReordering: false },
    { field: 'TaskName', headerText: 'Task Name', allowSorting: false },
    { field: 'StartDate', headerText: 'Start Date', allowEditing: false },
    { field: 'Duration', headerText: 'Duration', allowFiltering: false }
]
});
gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Column type

Column type can be specified using the columns.type property. It specifies the type of data the column binds.

If the format is defined for a column, the column uses type to select the appropriate format option number or date.

Gantt column supports the following types:

string
number
boolean
date
date time

If the type is not defined, it will be determined from the first record of the dataSource. In case if the first record of the dataSource is null/blank value for a column then it is necessary to define the type for that column.

Column Spanning

The gantt has option to span the adjacent cells. You need to define the colSpan attribute to span cells in the QueryCellInfo event.

In the following demo, Work 1 cells have been spanned.

Source

Preview

index.ts

index.html

import { Gantt, Edit, Selection, QueryCellInfoEventArgs } from '@syncfusion/ej2-gantt';
import { GanttData } from 'datasource.ts';

Gantt.Inject(Edit, Selection);

let gantt: Gantt = new Gantt({
dataSource: GanttData,
gridLines: 'Both',
height: '450px',
taskFields: {
    id: 'TaskID',
    name: 'TaskName',
    startDate: 'StartDate',
    duration: 'Duration',
    work1: 'work1',
    work2: 'work2',
    progress: 'Progress',
    child: 'subtasks'
},
columns: [
    { field: 'TaskID', headerText: 'Task ID' },
    { field: 'TaskName', headerText: 'Task Name' },
    { field: 'work1', headerText: 'Work 1' },
    { field: 'work2', headerText: 'Work 2' },
    { field: 'StartDate', headerText: 'Start Date' },
    { field: 'Duration', headerText: 'Duration' },
    { field: 'Progress', headerText: 'Progress'}
],
splitterSettings: {
    columnIndex: 5
},
queryCellInfo: function (args: QueryCellInfoEventArgs) {
    switch(args.data.TaskID) {
        case 1:
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
        case 2:
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
        case 3:
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
        case 4:
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
        case 5  :
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
        case 7:
        if ((args.column.field == 'work1') && (args.data.taskData.work1 == 'support')) {
            args.colSpan = 2;
        }
        break;
    }
}
});

gantt.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/material.css" rel="stylesheet" type="text/css"/>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
       
     <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Gantt'></div>
    </div>
</body>

</html>

Please provide additional information

Thank you for your feedback and comments.We will rectify this as soon as possible!

Columns in JavaScript Gantt control

Defining columns

Custom column header

Format

Number formatting

Date formatting

Column reordering

Reorder multiple columns

Reorder Events

Column resizing

Defining minimum and maximum column width

Column template

Column menu

Column menu events

Custom Column Menu Item

Customize menu items for particular columns

Responsive columns

Change tree/expander column

Show or Hide columns dynamically

Checkbox Column

Controlling Grid actions

Column type

Column Spanning