Dynamic EJ2 JavaScript ListView control by loading ajax html content

1 Mar 20256 minutes to read

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

let template: string;
let ajax: Ajax = new Ajax('https://ej2.syncfusion.com/documentation/code-snippet/listview/ajax-cs1/template', 'GET', false);
ajax.onSuccess = (e: string)=>{
    template = e;
}

ajax.send();

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

var data = [
    { 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' }
];

var template;
var ajax = new ej.base.Ajax('https://ej2.syncfusion.com/documentation/code-snippet/listview/ajax-cs1/template', 'GET', true);
ajax.send().then();
ajax.onSuccess = function (e) {
    template = e;
    listfunction();
}

function listfunction() {
    listViewInstance.template = template;
    listViewInstance.refresh();
}


ajax.onFailure = function (reason) {
    console.log(reason);
}
var listViewInstance = new ej.lists.ListView({
    dataSource: data,
    headerTitle: 'Settings',
    showHeader: true,
    template: template,
    fields: { text: 'name', id: 'id' },
    height: 380
});

listViewInstance.appendTo('#element');
<!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/ej2/29.2.4/ej2-base/styles/material.css" rel="stylesheet">
  <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-lists/styles/material.css" rel="stylesheet">
  <link href="https://cdn.syncfusion.com/ej2/29.2.4/ej2-layouts/styles/material.css" rel="stylesheet">
  <script src="https://cdn.syncfusion.com/ej2/29.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
  <div id="container">
    <div id="element"></div>
  </div>

  <script>
    var ele = document.getElementById('container');
    if (ele) {
      ele.style.visibility = "visible";
    }   
  </script>
  <script src="index.js" type="text/javascript"></script>
  <style>
    #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;
    }
  </style>
</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%;
}