DevExtreme Accessibility Compliance
DevExtreme component libraries meet a variety of WCAG and Section 508 compliance standards. To assess this demo’s accessibility level, click the Run AXE® Validation button to launch the AXE® web accessibility evaluation tool.
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The overall accessibility level of your application depends on the Menu features used.
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Backend API
$(() => {
const dxMenu = $('#menu').dxMenu({
dataSource: menuData,
hideSubmenuOnMouseLeave: false,
displayExpr: 'name',
onItemClick(data) {
const item = data.itemData;
if (item.price) {
$('#product-details').removeClass('hidden');
$('#product-details > img').attr('src', item.icon);
$('#product-details > .price').text(`$${item.price}`);
$('#product-details > .name').text(item.name);
}
},
}).dxMenu('instance');
const showSubmenuModes = [{
name: 'onHover',
delay: { show: 0, hide: 500 },
}, {
name: 'onClick',
delay: { show: 0, hide: 300 },
}];
$('#show-submenu-mode').dxSelectBox({
items: showSubmenuModes,
value: showSubmenuModes[1],
inputAttr: { 'aria-label': 'Submenu Mode' },
displayExpr: 'name',
onValueChanged(data) {
dxMenu.option('showFirstSubmenuMode', data.value);
},
});
$('#orientation').dxSelectBox({
items: ['horizontal', 'vertical'],
inputAttr: { 'aria-label': 'Orientation' },
value: 'horizontal',
onValueChanged(data) {
dxMenu.option('orientation', data.value);
},
});
$('#mouse-leave').dxCheckBox({
value: false,
text: 'Hide Submenu on Mouse Leave',
onValueChanged(data) {
dxMenu.option('hideSubmenuOnMouseLeave', data.value);
},
});
});
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<script src="js/dx.all.js"></script>
<script src="data.js"></script>
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="index.js"></script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div class="form">
<div>
<div class="label">Catalog:</div>
<div id="menu"></div>
<div id="product-details" class="hidden">
<img src="" />
<div class="name"></div>
<div class="price"></div>
</div>
</div>
<div class="options">
<div class="caption">Options</div>
<div class="option">
<div>Show First Submenu Mode</div>
<div id="show-submenu-mode"></div>
</div>
<div class="option">
<div>Orientation</div>
<div id="orientation"></div>
</div>
<div class="option">
<div id="mouse-leave"></div>
</div>
</div>
</div>
</div>
</body>
</html>
.form {
margin-left: 3px;
}
.form > div:first-child {
margin-right: 320px;
}
.label {
font-size: 22px;
padding-bottom: 24px;
}
#product-details {
width: 400px;
height: 400px;
margin: 20px auto 0;
}
#product-details > img {
height: 300px;
width: 400px;
}
#product-details > .name {
text-align: center;
font-size: 20px;
}
#product-details > .price {
text-align: center;
font-size: 24px;
}
.dark #product-details > div {
color: #f0f0f0;
}
.options {
padding: 20px;
position: absolute;
bottom: 0;
right: 0;
width: 260px;
top: 0;
background-color: rgba(191, 191, 191, 0.15);
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
margin-top: 10px;
}
.hidden {
visibility: hidden;
}
const menuData = [{
id: '1',
name: 'Video Players',
items: [{
id: '1_1',
name: 'HD Video Player',
price: 220,
icon: '../../../../images/products/1.png',
}, {
id: '1_2',
name: 'SuperHD Video Player',
icon: '../../../../images/products/2.png',
price: 270,
}],
}, {
id: '2',
name: 'Televisions',
items: [{
id: '2_1',
name: 'SuperLCD 42',
icon: '../../../../images/products/7.png',
price: 1200,
}, {
id: '2_2',
name: 'SuperLED 42',
icon: '../../../../images/products/5.png',
price: 1450,
}, {
id: '2_3',
name: 'SuperLED 50',
icon: '../../../../images/products/4.png',
price: 1600,
}, {
id: '2_4',
name: 'SuperLCD 55 (Not available)',
icon: '../../../../images/products/6.png',
price: 1350,
disabled: true,
}, {
id: '2_5',
name: 'SuperLCD 70',
icon: '../../../../images/products/9.png',
price: 4000,
}],
}, {
id: '3',
name: 'Monitors',
items: [{
id: '3_1',
name: '19"',
items: [{
id: '3_1_1',
name: 'DesktopLCD 19',
icon: '../../../../images/products/10.png',
price: 160,
}],
}, {
id: '3_2',
name: '21"',
items: [{
id: '3_2_1',
name: 'DesktopLCD 21',
icon: '../../../../images/products/12.png',
price: 170,
}, {
id: '3_2_2',
name: 'DesktopLED 21',
icon: '../../../../images/products/13.png',
price: 175,
}],
}],
}, {
id: '4',
name: 'Projectors',
items: [{
id: '4_1',
name: 'Projector Plus',
icon: '../../../../images/products/14.png',
price: 550,
}, {
id: '4_2',
name: 'Projector PlusHD',
icon: '../../../../images/products/15.png',
price: 750,
}],
}];
Configure the JavaScript Menu
Use the orientation property to specify whether the JavaScript Menu has horizontal or vertical orientation. Use the animation property to specify the type, delay, duration, and other options of show and hide menu actions.
Configure the Submenus
Clicking or a hovering a JavaScript Menu item opens a drop-down menu that can contain several submenus. To specify the drop-down menu mode ("onClick" or "onHover"), use the showSubmenuMode property. If you need only to specify the first level of drop-down menus, use the showFirstSubmenuMode property.
If you want to hide the submenu when the mouse pointer leaves it, set the hideSubmenuOnMouseLeave property to true.
Customize Item Appearance
You can define specific fields in the item data objects to change the appearance of an item. For example, use the icon property to supply items with icons. Define an itemTemplate to customize item appearance.