mirror of
https://github.com/mdbootstrap/mdb-ui-kit.git
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202 lines
8.7 KiB
HTML
202 lines
8.7 KiB
HTML
<div class="bs-docs-section">
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<h1 id="dropdowns" class="page-header">Dropdowns <small>dropdown.js</small></h1>
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<h2 id="dropdowns-examples">Examples</h2>
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<p>Add dropdown menus to nearly anything with this simple plugin, including the navbar, tabs, and pills.</p>
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<h3>Within a navbar</h3>
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<div class="bs-example">
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<nav id="navbar-example" class="navbar navbar-default navbar-static">
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<div class="container-fluid">
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<div class="navbar-header">
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<button class="navbar-toggle collapsed" type="button" data-toggle="collapse" data-target=".bs-example-js-navbar-collapse">
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<span class="sr-only">Toggle navigation</span>
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<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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</button>
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<a class="navbar-brand" href="#">Project Name</a>
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</div>
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<div class="collapse navbar-collapse bs-example-js-navbar-collapse">
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<ul class="nav navbar-nav">
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<li class="dropdown">
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<a id="drop1" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul class="dropdown-menu" aria-labelledby="drop1">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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<li class="dropdown">
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<a id="drop2" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul class="dropdown-menu" aria-labelledby="drop2">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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</ul>
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<ul class="nav navbar-nav navbar-right">
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<li id="fat-menu" class="dropdown">
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<a id="drop3" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul class="dropdown-menu" aria-labelledby="drop3">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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</ul>
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</div><!-- /.nav-collapse -->
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</div><!-- /.container-fluid -->
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</nav> <!-- /navbar-example -->
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</div> <!-- /example -->
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<h3>Within pills</h3>
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<div class="bs-example">
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<ul class="nav nav-pills" role="tablist">
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<li role="presentation" class="active"><a href="#">Regular link</a></li>
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<li role="presentation" class="dropdown">
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<a id="drop4" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul id="menu1" class="dropdown-menu" aria-labelledby="drop4">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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<li role="presentation" class="dropdown">
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<a id="drop5" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul id="menu2" class="dropdown-menu" aria-labelledby="drop5">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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<li role="presentation" class="dropdown">
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<a id="drop6" href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown
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<span class="caret"></span>
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</a>
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<ul id="menu3" class="dropdown-menu" aria-labelledby="drop6">
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<li><a href="#">Action</a></li>
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<li><a href="#">Another action</a></li>
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<li><a href="#">Something else here</a></li>
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<li role="separator" class="divider"></li>
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<li><a href="#">Separated link</a></li>
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</ul>
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</li>
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</ul> <!-- /pills -->
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</div> <!-- /example -->
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<h2 id="dropdowns-usage">Usage</h2>
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<p>Via data attributes or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the <code>.open</code> class on the parent list item.</p>
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<p>On mobile devices, opening a dropdown adds a <code>.dropdown-backdrop</code> as a tap area for closing dropdown menus when tapping outside the menu, a requirement for proper iOS support. <strong class="text-danger">This means that switching from an open dropdown menu to a different dropdown menu requires an extra tap on mobile.</strong></p>
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<p>Note: The <code>data-toggle="dropdown"</code> attribute is relied on for closing dropdown menus at an application level, so it's a good idea to always use it.</p>
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<h3>Via data attributes</h3>
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<p>Add <code>data-toggle="dropdown"</code> to a link or button to toggle a dropdown.</p>
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{% highlight html %}
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<div class="dropdown">
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<button id="dLabel" type="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
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Dropdown trigger
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<span class="caret"></span>
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</button>
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<ul class="dropdown-menu" aria-labelledby="dLabel">
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...
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</ul>
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</div>
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{% endhighlight %}
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<p>To keep URLs intact with link buttons, use the <code>data-target</code> attribute instead of <code>href="#"</code>.</p>
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{% highlight html %}
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<div class="dropdown">
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<a id="dLabel" data-target="#" href="http://example.com" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
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Dropdown trigger
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<span class="caret"></span>
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</a>
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<ul class="dropdown-menu" aria-labelledby="dLabel">
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...
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</ul>
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</div>
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{% endhighlight %}
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<h3>Via JavaScript</h3>
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<p>Call the dropdowns via JavaScript:</p>
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{% highlight js %}
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$('.dropdown-toggle').dropdown()
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{% endhighlight %}
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<div class="bs-callout bs-callout-info" id="callout-dropdowns-data-required">
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<h4><code>data-toggle="dropdown"</code> still required</h4>
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<p>Regardless of whether you call your dropdown via JavaScript or instead use the data-api, <code>data-toggle="dropdown"</code> is always required to be present on the dropdown's trigger element.</p>
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</div>
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<h3 id="dropdowns-options">Options</h3>
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<p><em>None</em></p>
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<h3 id="dropdowns-methods">Methods</h3>
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<h4><code>$().dropdown('toggle')</code></h4>
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<p>Toggles the dropdown menu of a given navbar or tabbed navigation.</p>
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<h3 id="dropdowns-events">Events</h3>
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<p>All dropdown events are fired at the <code>.dropdown-menu</code>'s parent element.</p>
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<p>All dropdown events have a <code>relatedTarget</code> property, whose value is the toggling anchor element.</p>
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<div class="table-responsive">
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<table class="table table-bordered table-striped bs-events-table">
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<thead>
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<tr>
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<th>Event Type</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>show.bs.dropdown</td>
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<td>This event fires immediately when the show instance method is called.</td>
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</tr>
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<tr>
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<td>shown.bs.dropdown</td>
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<td>This event is fired when the dropdown has been made visible to the user (will wait for CSS transitions, to complete).</td>
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</tr>
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<tr>
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<td>hide.bs.dropdown</td>
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<td>This event is fired immediately when the hide instance method has been called.</td>
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</tr>
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<tr>
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<td>hidden.bs.dropdown</td>
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<td>This event is fired when the dropdown has finished being hidden from the user (will wait for CSS transitions, to complete).</td>
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</tr>
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</tbody>
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</table>
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</div><!-- ./bs-table-responsive -->
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{% highlight js %}
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$('#myDropdown').on('show.bs.dropdown', function () {
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// do something…
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})
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{% endhighlight %}
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</div>
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