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Display items count in group header in EJ2 TypeScript ListView control
22 Feb 20256 minutes to read
The ListView control supports grouping list items based on categories. The category of each list item can be mapped with the groupBy
field of the data source. You can display the count of grouped list items in the list header using the group header template. Refer to the following code sample to display the count of grouped list items.
import { ListView } from '@syncfusion/ej2-lists';
let template: string = '<div class="e-list-wrapper e-list-multi-line e-list-avatar">' +
'<img class="e-avatar e-avatar-circle" src=${image} style="background:#BCBCBC" />' +
'<span class="e-list-item-header">${Name}</span>' +
'<span class="e-list-content">${contact}</span>' +
'</div>';
//Define an array of JSON data
let dataSource: { [key: string]: string }[] = [
{ Name: 'Nancy', contact: '(206) 555-985774', id: '1', image: 'https://ej2.syncfusion.com/demos/src/grid/images/1.png', category: 'Experience' },
{ Name: 'Janet', contact: '(206) 555-3412', id: '2', image: 'https://ej2.syncfusion.com/demos/src/grid/images/3.png', category: 'Fresher' },
{ Name: 'Margaret', contact: '(206) 555-8122', id: '4', image: 'https://ej2.syncfusion.com/demos/src/grid/images/4.png', category: 'Experience' },
{ Name: 'Andrew ', contact: '(206) 555-9482', id: '5', image: 'https://ej2.syncfusion.com/demos/src/grid/images/2.png', category: 'Experience' },
{ Name: 'Steven', contact: '(71) 555-4848', id: '6', image: 'https://ej2.syncfusion.com/demos/src/grid/images/5.png', category: 'Fresher' },
{ Name: 'Michael', contact: '(71) 555-7773', id: '7', image: 'https://ej2.syncfusion.com/demos/src/grid/images/6.png', category: 'Experience' },
{ Name: 'Robert', contact: '(71) 555-5598', id: '8', image: 'https://ej2.syncfusion.com/demos/src/grid/images/7.png', category: 'Fresher' },
{ Name: 'Laura', contact: '(206) 555-1189', id: '9', image: 'https://ej2.syncfusion.com/demos/src/grid/images/8.png', category: 'Experience' },
];
// Initialize the ListView control
let listObj: ListView = new ListView({
//Set the defined data to the data source property
dataSource: dataSource,
//Map the appropriate columns to the fields property
fields: { text: 'Name', groupBy: 'category' },
//set cssClass for template customization
cssClass: 'e-list-template',
//Set the customized template
template: template,
groupTemplate: '<div><span class="category">${items[0].category}</span> <span class="count"> ${items.length} Item(s)</span></div> ',
height: 380,
});
//Render the initialized ListView control
listObj.appendTo('#List');
<!DOCTYPE html>
<html lang="en">
<head>
<title>Essential JS 2 for ListView </title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="Essential JS 2 for ListView UI Control" />
<meta name="author" content="Syncfusion" />
<link href="index.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/30.1.37/ej2-base/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/30.1.37/ej2-lists/styles/material.css" rel="stylesheet" />
<link href="https://cdn.syncfusion.com/ej2/30.1.37/ej2-layouts/styles/material.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
<script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id='loader'>Loading....</div>
<div id="container">
<div class="col-lg-12 control-section">
<!-- ListView element -->
<div id="List" tabindex="1">
</div>
</div>
</div>
<style>
#List {
display: block;
margin: auto;
font-size: 15px;
border: 1px solid;
border-color: #ccc;
width: 350px;
}
#List .e-list-group-item {
height: 56px;
line-height: 56px;
}
#List .count {
float: right;
}
</style>
</body>
</html>
#container {
visibility: hidden;
}
#loader {
color: #008cff;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}