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Dynamic listview by loading AJAX HTML content in JavaScript ListView control

08 Apr 2021 / 2 minutes to read

We can set external HTML page content as template for our ListView control by making use of AJAX call.

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let template: string;
let ajax: Ajax = new Ajax('./template.html', 'GET', false);
ajax.onSuccess = (e: string)=>{
    template = e;
}

ajax.send();

In the below sample, we have rendered smartphone settings template from external HTML file.

Source
Preview
index.ts
index.html
index.css
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import { ListView } from '@syncfusion/ej2-lists';
import { Ajax } from '@syncfusion/ej2-base';

let data: { [key: string]: Object }[] = [
    { name: 'Network & Internet', id: '0', description: 'Wi-Fi, mobile, data usage, hotspot' },
    { name: 'Connected devices', id: '1', description: 'Bluetooth, cast, NFC' },
    { name: 'Battery', id: '2', description: '18% -4h 12m left' },
    { name: 'Display', id: '3', description: 'Wallpaper, sleep, font size' },
    { name: 'Sound', id: '4', description: 'Volume, vibration, Do Not Disturb' },
    { name: 'Storage', id: '5', description: '52% used - 15.48 GB free' }
];

let template: string;
let ajax: Ajax = new Ajax('./template.html', 'GET', false);
ajax.onSuccess = (e: string)=>{
    template = e;
}

ajax.send();

let listViewInstance: ListView = new ListView({
    dataSource: data,
    template: template,
    headerTitle: 'Settings',
    showHeader: true,
    fields: {text:'name', id: 'id'}
});

listViewInstance.appendTo('#element');
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<!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="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/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>
</head>

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

</html>
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#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;
    max-width: 300px;
    margin: auto;
    border: 1px solid #dddddd;
    border-radius: 3px;
}

#element .e-list-header {
    background: rgb(2, 120, 215);
    color: white;
    font-size: 19px;
    font-weight: 500;
}

#element.e-listview .e-list-item {
    padding: 10px 16px;
    height: 61px;

}

#element .settings-container .name {
    font-size: 15px;
    font-weight: 500;
    line-height: 20px;
    height: 20px;
}

#element .settings-container .description {
    line-height: 20px;
    height: 20px;
    font-size: 10px;
    font-style: italic;
    margin-top: -2px;
}