<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI 排序（Sortable） - 处理空列表</title>
<link rel="stylesheet" href="https://libs.baidu.com/jqueryui/1.10.4/css/jquery-ui.min.css">
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script src="https://libs.baidu.com/jqueryui/1.10.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="/demo/jqueryui/style.css">
<style>
#sortable1, #sortable2, #sortable3 { list-style-type: none; margin: 0; padding: 0; float: left; margin-right: 10px; background: #eee; padding: 5px; width: 143px;}
#sortable1 li, #sortable2 li, #sortable3 li { margin: 5px; padding: 5px; font-size: 1.2em; width: 120px; }
</style>
<script>
$(function() {
$( "ul.droptrue" ).sortable({
connectWith: "ul"
});
$( "ul.dropfalse" ).sortable({
connectWith: "ul",
dropOnEmpty: false
});
$( "#sortable1, #sortable2, #sortable3" ).disableSelection();
});
</script>
</head>
<body>
<ul id="sortable1" class="droptrue">
<li class="ui-state-default">可被放置到..</li>
<li class="ui-state-default">..一个空列表中</li>
<li class="ui-state-default">Item 3</li>
<li class="ui-state-default">Item 4</li>
<li class="ui-state-default">Item 5</li>
</ul>
<ul id="sortable2" class="dropfalse">
<li class="ui-state-highlight">不可被放置到..</li>
<li class="ui-state-highlight">..一个空列表中</li>
<li class="ui-state-highlight">Item 3</li>
<li class="ui-state-highlight">Item 4</li>
<li class="ui-state-highlight">Item 5</li>
</ul>
<ul id="sortable3" class="droptrue">
</ul>
<br style="clear:both">
</body>
</html>