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Populating Items in JavaScript (ES5) Carousel control

24 May 2022 / 4 minutes to read

In the Carousel, slides can be rendered in two ways as follows,

  • Populating items using carousel item
  • Populating items using data source

When rendering the Carousel component using items binding, you can assign templates for each item separately or assign a common template to each item. You can also customize the slide transition interval for each item separately. The following example code depicts the functionality as item property binding.

Source
Preview
index.js
index.html
styles.css
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var carouselObj = new ej.navigations.Carousel({
    items: [
        { template: '<div class="fs-5">Slide 1</div>' },
        { template: '<div class="fs-5">Slide 2</div>' },
        { template: '<div class="fs-5">Slide 3</div>' },
        { template: '<div class="fs-5">Slide 4</div>' },
        { template: '<div class="fs-5">Slide 5</div>' }
    ]
});
carouselObj.appendTo('#carousel');
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<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="description" content="Essential JS 2">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-navigations/styles/material.css" rel="stylesheet">

    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">

    <!--system js reference and configuration-->
    
    
<script src="https://cdn.syncfusion.com/ej2/20.1.57/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div class="control-section">
            <div class="control-container">
                <div id="carousel"></div>
            </div>
        </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>
Copied to clipboard
.control-container {
  height: 360px;
  margin: 0 auto;
  width: 600px;
}

.img-container {
  height: 100%;
  margin: 0;
}

.img-caption {
  color: #fff;
  font-size: 1rem;
  position: absolute;
  bottom: 3rem;
  width: 100%;
  text-align: center;
}

Populating items using data source

When rendering the Carousel component using data binding, you can assign a common template only for all items using the itemTemplate property. You cannot set the interval for each item. The following example code depicts the functionality as data binding.

Source
Preview
index.js
index.html
styles.css
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var productItems = [
    { ID: 1, Title: 'Slide 1' }, 
    { ID: 2, Title: 'Slide 2' },
    { ID: 3, Title: 'Slide 3' }, 
    { ID: 4, Title: 'Slide 4' }, 
    { ID: 5, Title: 'Slide 5' }
];

var carouselObj = new ej.navigations.Carousel({
    dataSource: productItems,
    itemTemplate: '<div class="fs-5">${Title}</div>'
});
carouselObj.appendTo('#carousel');
Copied to clipboard
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="description" content="Essential JS 2">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-navigations/styles/material.css" rel="stylesheet">

    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">

    <!--system js reference and configuration-->
    
    
<script src="https://cdn.syncfusion.com/ej2/20.1.57/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div class="control-section">
            <div class="control-container">
                <div id="carousel"></div>
            </div>
        </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>
Copied to clipboard
.control-container {
  height: 360px;
  margin: 0 auto;
  width: 600px;
}

.img-container {
  height: 100%;
  margin: 0;
}

.img-caption {
  color: #fff;
  font-size: 1rem;
  position: absolute;
  bottom: 3rem;
  width: 100%;
  text-align: center;
}

Selection

The Carousel items will be populated from the first index of the Carousel items and can be customized using the following ways,

  • Select an item using the property.
  • Select an item using the method.

Select an item using the property

Using the selectedIndex property of the Carousel component, you can set the slide to be populated at the time of initial rendering else you can switch to the particular slide item.

Source
Preview
index.js
index.html
styles.css
Copied to clipboard
var carouselObj = new ej.navigations.Carousel({
    items: [
        { template: '<div class="fs-5">Slide 1</div>' },
        { template: '<div class="fs-5">Slide 2</div>' },
        { template: '<div class="fs-5">Slide 3</div>' },
        { template: '<div class="fs-5">Slide 4</div>' },
        { template: '<div class="fs-5">Slide 5</div>' }
    ],
    selectedIndex: 3
});
carouselObj.appendTo('#carousel');
Copied to clipboard
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="description" content="Essential JS 2">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-navigations/styles/material.css" rel="stylesheet">

    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">

    <!--system js reference and configuration-->
    
    
<script src="https://cdn.syncfusion.com/ej2/20.1.57/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div class="control-section">
            <div class="control-container">
                <div id="carousel"></div>
            </div>
        </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>
Copied to clipboard
.control-container {
  height: 360px;
  margin: 0 auto;
  width: 600px;
}

.img-container {
  height: 100%;
  margin: 0;
}

.img-caption {
  color: #fff;
  font-size: 1rem;
  position: absolute;
  bottom: 3rem;
  width: 100%;
  text-align: center;
}

Select an item using the method

Using the prev or next public method of the Carousel component, you can switch the current populating slide to a previous or next slide.

Source
Preview
index.js
index.html
styles.css
Copied to clipboard
var carouselObj = new ej.navigations.Carousel({
    items: [
        { template: '<div class="fs-5">Slide 1</div>' },
        { template: '<div class="fs-5">Slide 2</div>' },
        { template: '<div class="fs-5">Slide 3</div>' },
        { template: '<div class="fs-5">Slide 4</div>' },
        { template: '<div class="fs-5">Slide 5</div>' }
    ]
});
carouselObj.appendTo('#carousel');

var prevButton = new ej.buttons.Button({ cssClass: 'e-info' });
prevButton.appendTo('#prev');
prevButton.element.onclick = (): void => {
    carouselObj.prev();
};

var nextButton = new ej.buttons.Button({ cssClass: 'e-info' });
nextButton.appendTo('#next');
nextButton.element.onclick = (): void => {
    carouselObj.next();
};
Copied to clipboard
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="description" content="Essential JS 2">
    <meta name="author" content="Syncfusion">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.57/ej2-navigations/styles/material.css" rel="stylesheet">

    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">

    <!--system js reference and configuration-->
    
    
<script src="https://cdn.syncfusion.com/ej2/20.1.57/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div class="control-section">
            <div id="prev">Previous</div>
            <div id="next">Next</div>
            <div class="control-container">
                <div id="carousel"></div>
            </div>
        </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>
Copied to clipboard
.control-container {
  background-color: #e5e5e5;
  height: 360px;
  margin: 0 auto;
  width: 600px;
}

.img-container {
  height: 100%;
  margin: 0;
}

.img-caption {
  color: #fff;
  font-size: 1rem;
  position: absolute;
  bottom: 3rem;
  width: 100%;
  text-align: center;
}