The Menu provides a set of events to enable users to customize it.
The available events are beforeOpen, beforeClose, onClose, onOpen, and select.
import { Menu, MenuItemModel, MenuEventArgs } from '@syncfusion/ej2-navigations';
import { OpenCloseMenuEventArgs, BeforeOpenCloseMenuEventArgs } from '@syncfusion/ej2-navigations';
import { Button } from '@syncfusion/ej2-buttons';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);
//Menu items definition
let menuItems: MenuItemModel[] = [
{
text: 'Events',
items: [
{ text: 'Conferences' },
{ text: 'Music' },
{ text: 'Workshops' }
]
},
{
text: 'Movies',
items: [
{ text: 'Now Showing' },
{ text: 'Coming Soon' }
]
},
{
text: 'Directory',
items: [
{ text: 'Media Gallery' },
{ text: 'Newsletters' }
]
},
{
text: 'Queries',
items: [
{ text: 'Our Policy' },
{ text: 'Site Map' }
]
},
{ text: 'Services' }
];
// Initialize Menu component.
let menuObj: Menu = new Menu({
items: menuItems,
beforeOpen: (args: BeforeOpenCloseMenuEventArgs) => {
updateEventLog(args);
},
beforeClose: (args: BeforeOpenCloseMenuEventArgs) => {
updateEventLog(args);
},
onClose: (args: OpenCloseMenuEventArgs) => {
updateEventLog(args);
},
onOpen: (args: OpenCloseMenuEventArgs) => {
updateEventLog(args);
},
select: (args: MenuEventArgs) => {
updateEventLog(args);
}
}, '#menu');
let clear: Button = new Button({ cssClass: 'e-small'});
clear.appendTo('#clear');
clear.element.onclick = () => {
let propertyElem: HTMLElement = document.getElementById('propertyTable');
propertyElem.getElementsByTagName('td')[0].innerHTML = '';
}
function updateEventLog(args: any): void {
let propertyElem: HTMLElement = document.getElementById('propertyTable');
propertyElem.getElementsByTagName('td')[0].insertAdjacentHTML('beforeend', args.name + ' Event triggered. <br />');
}<!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="//cdn.syncfusion.com/ej2/21.2.3/ej2-base/styles/material.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-popups/styles/material.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-navigations/styles/material.css" rel="stylesheet" />
<link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-buttons/styles/material.css" rel="stylesheet" />
<!--style reference from app-->
<link href="styles.css" rel="stylesheet" />
<!--system js reference and configuration-->
<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 class="control-section">
<div class="menu-section">
<ul id="menu"></ul>
</div>
<div class="property-section">
<table id="propertyTable" title="Event trace">
<tbody>
<th>Event trace:-</th>
<tr>
<td></td>
</tr>
</tbody>
</table>
</div>
<button id='clear'>Clear</button>
</div>
</div>
</body>
</html>html, body, .control-section {
height: 95%;
}
.menu-section {
margin-top: 100px;
text-align: center;
float: left;
}
.property-section {
overflow: auto;
width: 40%;
height: 330px;
float: right;
font-family: monospace;
}
.property-section th {
text-align: left;
}
#clear {
float: right;
clear: both;
}