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Dynamic Badge Content

Badges in real-time needs to be updated dynamically based on the requirements. The following sample demonstrates how to update the badges content dynamically. Click the increment button to change the badge value.

Source
Preview
index.js
index.html
index.css
// Datasource for listview, badge field is the class data for Badges
var dataSource = [
    { id: 'p_01', text: 'Primary', messages: '3 New', badge: 'e-badge e-badge-primary', icons: 'primary', type: 'Primary' },
    { id: 'p_02', text: 'Social', messages: '27 New', badge: 'e-badge e-badge-secondary', icons: 'social', type: 'Primary' },
    { id: 'p_03', text: 'Promotions', messages: '7 New', badge: 'e-badge e-badge-success', icons: 'promotion', type: 'Primary' },
    { id: 'p_04', text: 'Updates', messages: '13 New', badge: 'e-badge e-badge-info', icons: 'updates', type: 'Primary' },
    { id: 'p_05', text: 'Starred', messages: '', badge: '', icons: 'starred', type: 'All Labels' },
    { id: 'p_06', text: 'Important', messages: '2 New', badge: 'e-badge e-badge-danger', icons: 'important', type: 'All Labels' },
    { id: 'p_07', text: 'Sent', messages: '', badge: '', icons: 'sent', type: 'All Labels' },
    { id: 'p_08', text: 'Outbox', messages: '', badge: '', icons: 'outbox', type: 'All Labels' },
    { id: 'p_09', text: 'Drafts', messages: '7 New', badge: 'e-badge e-badge-warning', icons: 'draft', type: 'All Labels' },
];

var list = new ej.lists.ListView({
    // Bind listview datasource
    dataSource: dataSource,
    // Assign header title
    headerTitle: 'Inbox',
    // Enable header
    showHeader: true,
    // Assign template
    template: '<div class="listWrapper" style="width: inherit;height: inherit;"><span class="${icons} list_svg">&nbsp;</span>' +
        '<span class="list_text">${text} </span>' +
        '${if(messages !== "")}<span class="${badge}" style="float: right;margin-top: 16px;font-size: 12px;">${messages}</span>${/if}</div>',

    // Map fields
    fields: { groupBy: 'type' },
    // Bind actioncomplete event
    actionComplete: () => {
        badgeElements = Array.prototype.slice.call(document.getElementById('lists').getElementsByClassName('e-badge'));
    }
});
list.appendTo('#lists');

document.getElementById('button').addEventListener('click', function buttonClick() {
    badgeElements.forEach((element) => {
        element.textContent = (Number(element.textContent.split(' ')[0])) + 1 + ' New';
    })
});
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 for Badge </title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Essential JS 2 for Badge UI Control">
    <meta name="author" content="Syncfusion">
    <link href="index.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-notifications/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>

<body>
    
    <div id="container">
        <div id="element">
            <div class="sample_container badge-list">
                <!-- Listview element -->
                <div id="lists"></div>
                <p class="crossline"></p>
                <span class="incr_button">
                  <button class="e-btn e-primary" id="button">Increment Badge Count</button>
                </span>
            </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>
#container {
  visibility: hidden;
}

#loader {
  color: #008cff;
  height: 40px;
  width: 30%;
  position: absolute;
  font-family: 'Helvetica Neue', 'calibiri';
  font-size: 14px;
  top: 45%;
  left: 45%;
}

#element {
  display: block;
  width: 670px;
  margin: auto;
  border-radius: 3px;
  justify-content: center;
}

.sample_container.badge-list {
  max-width: 650px;
  margin: auto;
  height: 540px;
}

#lists {
  width: 370px;
  display: inline-block;
  border: 1px solid rgba(0, 0, 0, 0.12)
}

#lists ul li:first-child {
  display: none;
}

.incr_button {
  vertical-align: top;
  position: relative;
  top: 250px;
  display: inline-block;
}

.crossline {
  display: inline-block;
  height: 100%;
  margin: 0 20px;
  width: 1px;
  background: #8080805c;
}
#lists .e-list-item {
  cursor: pointer;
  height: 50px;
  line-height: 48px;
  border: 0;
}


/* SVG Icons and Customization */

.list_svg {
  width: 24px;
  height: 24px;
  display: inline-block;
  margin-top: 11px;
  margin-right: 16px;
}

.list_text {
  width: 60%;
  display: inline-block;
  vertical-align: top;
}

.updates {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M17.024 13.812l.022.162v.893c0 .487-.007.942-.022 1.366-.012.423-.027.833-.042 1.23v2.435c0 .415.022.799.064 1.15.042.35.11.559.202.622.091.063.232.095.422.095h.328l.105.324c-.041.073-.125.136-.253.189-.127.055-.226.063-.296.028H14.126a.556.556 0 0 1-.34-.109v-.27c.086-.108.22-.162.403-.162h.38c.185-.109.294-.219.328-.328.036-.108.054-.3.054-.573a7.32 7.32 0 0 0 .042-.819c0-.29.007-.527.021-.709V17.233c0-.636-.018-1.041-.053-1.213-.034-.173-.082-.386-.138-.64a20.09 20.09 0 0 1-.455.19c-.176.072-.291.108-.348.108l-.105-.162c0-.162.09-.307.274-.434l.38-.27a6.472 6.472 0 0 1 .847-.406c.227-.144.469-.265.73-.365.26-.1.554-.176.878-.229zm-.952-5.736a.9.9 0 0 1 .613.243c.184.162.343.361.477.595.135.235.2.451.2.65 0 .451-.129.802-.39 1.054-.261.254-.453.397-.572.434a1.424 1.424 0 0 1-.412.054.934.934 0 0 1-.455-.122c-.15-.082-.293-.23-.433-.447a1.834 1.834 0 0 1-.277-.676c-.027-.307.044-.63.213-.974.17-.342.373-.577.613-.703.17-.072.31-.108.423-.108zM16 3.465C9.088 3.465 3.464 9.088 3.464 16c0 6.913 5.624 12.536 12.536 12.536S28.536 22.913 28.536 16c0-6.912-5.624-12.535-12.536-12.535zM16 1.6c7.94 0 14.4 6.46 14.4 14.4S23.94 30.4 16 30.4 1.6 23.94 1.6 16 8.06 1.6 16 1.6z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.promotion {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M6 4c.4 0 .7.2 1 .4.5.6.5 1.5-.1 2-.5.5-1.4.5-1.9-.1s-.5-1.4.1-1.9c.2-.3.6-.4.9-.4zm0-1c-.6 0-1.2.2-1.6.6-1 .9-1.1 2.4-.2 3.4.9 1 2.4 1 3.4.2 1-.9 1-2.4.1-3.4C7.3 3.2 6.6 3 6 3zm.3-3l7.1 1 18 19.6L18.9 32 .9 12.4.6 5.3z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.social {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M15.254 19.089c.996 0 3.587 1.992 3.786 8.27l-19.03.199s-.498-7.97 5.579-8.37c2.392-.398 4.783 1.993 6.178 1.793 1.295-.198 2.59-1.892 3.487-1.892zm3.886-2.69c.797 0 1.793 1.495 2.989 1.694 1.096.198 3.188-1.993 5.18-1.595 5.082.3 4.684 7.573 4.684 7.573l-11.558-.1c-.697-3.687-2.391-5.181-3.288-5.38.598-1.594 1.495-2.192 1.993-2.192zm-8.17-9.963c2.79 0 4.98 2.49 4.98 5.679 0 3.089-2.19 5.679-4.98 5.679-2.79 0-4.982-2.491-4.982-5.68 0-3.088 2.192-5.678 4.982-5.678zm11.657-1.994c2.49 0 4.583 2.293 4.583 5.082 0 2.79-2.092 5.082-4.583 5.082s-4.583-2.293-4.583-5.082c0-2.79 2.092-5.082 4.583-5.082z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.primary {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M1 7.5h10v2H2v18h28v-18h-9v-2h10a1 1 0 0 1 1 1v20a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1v-20a1 1 0 0 1 1-1zm14-5h2v13.172l2.536-2.536 1.414 1.414L17 18.5l-1 1-1-1-3.95-3.95 1.414-1.414L15 15.672z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.draft {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M10.262 23.448l2.295 2.298-3.443 1.149zm6.886-6.895l2.296 2.298-5.739 5.746-2.295-2.298zm3.443-3.448l2.295 2.299-2.295 2.298-2.295-2.298zM21 3.414V7h3.785zM6 2v28h20V9h-4.833C20.062 9 19 8.137 19 7.032V2zm.167-2h14.414L28 7.586V30c0 1.103-.73 2-1.833 2h-20C5.064 32 4 31.103 4 30V2C4 .897 5.064 0 6.167 0z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.outbox {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M2 9.63V26h28.001V9.67L15.998 20.08zM2 6v1.134l14.001 10.452 14-10.408L30 6zm0-2h28c1.103 0 2 .897 2 2v20c0 1.103-.897 2-2 2H2c-1.103 0-2-.897-2-2V6c0-1.103.897-2 2-2z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.sent {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M6.756 7.527l6.997 8.487-7.02 8.516 20.126-8.457zM0 2.48l32 13.603L.024 29.52l11.135-13.506z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.important {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M1.3 2.7c.7 0 1.3.6 1.3 1.3v25.2c0 .7-.6 1.3-1.3 1.3-.7 0-1.3-.6-1.3-1.3V4c0-.7.6-1.3 1.3-1.3zm10.3-1.2C18.2 1.5 23.7 5 32 2v17.5c-11.1 4-17.1-3.7-27.7 1V3.1c2.7-1.2 5-1.6 7.3-1.6z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}

.starred {
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath fill='#9E9E9E' d='M16 1.6l4.45 9.48 9.95 1.52-7.2 7.38 1.7 10.42-8.9-4.92-8.9 4.92 1.7-10.42-7.2-7.38 9.951-1.52z'/%3E%3C/svg%3E") no-repeat 100% 100%;
}