jquery-ui/demos/sortable/empty-lists.html

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<!doctype html>
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<html lang="en">
<head>
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<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>jQuery UI Sortable - Handle empty lists</title>
<link rel="stylesheet" href="../../themes/base/all.css">
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<link rel="stylesheet" href="../demos.css">
<style>
#sortable1, #sortable2, #sortable3 { list-style-type: none; margin: 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; }
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</style>
<script src="../../external/requirejs/require.js"></script>
<script src="../bootstrap.js" data-modules="disable-selection">
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$( "ul.droptrue" ).sortable({
connectWith: "ul"
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});
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$( "ul.dropfalse" ).sortable({
connectWith: "ul",
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dropOnEmpty: false
});
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$( "#sortable1, #sortable2, #sortable3" ).disableSelection();
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</script>
</head>
<body>
<ul id="sortable1" class='droptrue'>
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<li class="ui-state-default">Can be dropped..</li>
<li class="ui-state-default">..on an empty list</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'>
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<li class="ui-state-highlight">Cannot be dropped..</li>
<li class="ui-state-highlight">..on an empty list</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'>
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</ul>
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<br style="clear:both">
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<div class="demo-description">
<p>
Prevent all items in a list from being dropped into a separate, empty list
using the <code>dropOnEmpty</code> option set to <code>false</code>. By default,
sortable items can be dropped on empty lists.
</p>
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</div>
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</body>
</html>