スマート選択では、_maxlength_属性を使用して、限られた数のアイテムを選択できます。
次の例は、Framework7で選択可能なアイテムの数が制限されているアイテムの選択を示しています-
<!DOCTYPE html>
<html>
<head>
<meta name = "viewport" content = "width = device-width, initial-scale = 1,
maximum-scale = 1, minimum-scale = 1, user-scalable = no, minimal-ui"/>
<meta name = "apple-mobile-web-app-capable" content = "yes"/>
<meta name = "apple-mobile-web-app-status-bar-style" content = "black"/>
<title>Multiple Select and Maxlength</title>
<link rel = "stylesheet"
href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.min.css"/>
<link rel = "stylesheet"
href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.colors.min.css"/>
</head>
<body>
<div class = "views">
<div class = "view view-main">
<div class = "navbar">
<div class = "navbar-inner">
<div class = "left"> </div>
<div class = "center sliding">Multiple Select and Maxlength</div>
<div class = "right"> </div>
</div>
</div>
<div class = "pages navbar-through">
<div data-page = "home" class = "page">
<div class = "page-content">
<div class = "list-block">
<ul>
<li>
<a href = "#" class = "item-link smart-select">
<select name = "car" multiple maxlength = "4">
<optgroup label = "India">
<option value = "delhi" selected>Delhi</option>
<option value = "mumbai">Mumbai</option>
<option value = "bangalore">Bangalore</option>
</optgroup>
<optgroup label = "United Kingdom">
<option value = "london">London</option>
<option value = "belfast">Belfast</option>
<option value = "wells">Wells</option>
</optgroup>
<optgroup label = "Australia">
<option value = "sydney">Sydney</option>
<option value = "perth">Perth</option>
<option value = "melbourne">Melbourne</option>
</optgroup>
</select>
<div class = "item-content">
<div class = "item-inner">
<div class = "item-title">Cities</div>
</div>
</div>
</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
<script type = "text/javascript"
src = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/js/framework7.min.js"></script>
<script>
//here initialize the app
var myApp = new Framework7({
animateNavBackIcon:true
});
//If your using custom DOM library, then save it to $$ variable
var $$ = Dom7;
//Add the view
var mainView = myApp.addView('.view-main', {
//enable the dynamic navbar for this view
dynamicNavbar: true
});
</script>
</body>
</html>上記のコードがどのように機能するかを確認するために次の手順を実行してみましょう-
