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[英]how to automatically close submenu on dropdown-menu in Bootstrap 4
[英]When I click on dropdown-menu in bootstrap It opens and then close automatically
body { padding-top: 50px; } .dropdown.dropdown-lg .dropdown-menu { margin-top: -1px; padding: 6px 20px; } .input-group-btn .btn-group { display: flex !important; } .btn-group .btn { border-radius: 0; margin-left: -1px; } .btn-group .btn:last-child { border-top-right-radius: 4px; border-bottom-right-radius: 4px; } .form-horizontal .btn[type="submit"] { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } .form-horizontal .form-group { margin-left: 0; margin-right: 0; } .form-group .form-control:last-child { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } @media screen and (min-width: 768px) { #adv-search { width: 500px; margin: 0 auto; } .dropdown.dropdown-lg { position: static !important; } .dropdown.dropdown-lg .dropdown-menu { min-width: 500px; } }
<!DOCTYPE html> <html> <head> <title></title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.min.css"> <link rel="stylesheet" href="css/style.css"> <script type="text/javascript" src="https://code.jquery.com/jquery-3.1.0.min.js"></script> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <div class="row"> <div class="col-md-12"> <form class="form-horizontal" role="form"> <div class="input-group" id="adv-search"> <input type="text" class="form-control" placeholder="Search for snippets" /> <div class="input-group-btn"> <div class="btn-group" role="group"> <div class="dropdown dropdown-lg"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false"><span class="caret"></span></button> <div class="dropdown-menu dropdown-menu-right" role="menu"> <div class="form-group"> <label for="filter">Filter by</label> <select class="form-control"> <option value="0" selected>All Snippets</option> <option value="1">Featured</option> <option value="2">Most popular</option> <option value="3">Top rated</option> <option value="4">Most commented</option> </select> </div> <div class="form-group"> <label for="contain">Author</label> <input class="form-control" type="text" /> </div> <div class="form-group"> <label for="contain">Contains the words</label> <input class="form-control" type="text" /> </div> <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button> </div> </div> <button type="button" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button> </div> </div> </div> </form> </div> </div> </body>
我正在嘗試為php項目創建高級搜索。 但我的問題是,當我點擊內部下拉菜單 - 它打開然后我釋放鼠標按鈕它會自動關閉。
我正在使用bootstrap 3.3.6。
body { padding-top: 50px; } .dropdown.dropdown-lg .dropdown-menu { margin-top: -1px; padding: 6px 20px; } .input-group-btn .btn-group { display: flex !important; } .btn-group .btn { border-radius: 0; margin-left: -1px; } .btn-group .btn:last-child { border-top-right-radius: 4px; border-bottom-right-radius: 4px; } .form-horizontal .btn[type="submit"] { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } .form-horizontal .form-group { margin-left: 0; margin-right: 0; } .form-group .form-control:last-child { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } @media screen and (min-width: 768px) { #adv-search { width: 500px; margin: 0 auto; } .dropdown.dropdown-lg { position: static !important; } .dropdown.dropdown-lg .dropdown-menu { min-width: 500px; } }
<!DOCTYPE html> <html> <head> <title></title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.min.css"> <link rel="stylesheet" href="css/style.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/js/bootstrap.min.js"></script> <!-- begin snippet: js hide: false console: true babel: false -->
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<form class="form-horizontal" role="form">
<div class="input-group" id="adv-search">
<input type="text" class="form-control" placeholder="Search for snippets" />
<div class="input-group-btn">
<div class="btn-group" role="group">
<div class="dropdown dropdown-lg">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false"><span class="caret"></span></button>
<div class="dropdown-menu dropdown-menu-right" role="menu">
<div class="form-group">
<label for="filter">Filter by</label>
<select class="form-control">
<option value="0" selected>All Snippets</option>
<option value="1">Featured</option>
<option value="2">Most popular</option>
<option value="3">Top rated</option>
<option value="4">Most commented</option>
</select>
</div>
<div class="form-group">
<label for="contain">Author</label>
<input class="form-control" type="text" />
</div>
<div class="form-group">
<label for="contain">Contains the words</label>
<input class="form-control" type="text" />
</div>
<button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
</div>
</div>
<button type="button" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
</div>
</div>
</div>
</form>
</div>
</div>
</body>
我用id“someyourContainer”命名了以下div。
<div class="dropdown-menu dropdown-menu-right" role="menu" id="someyourContainer">
按鈕的切換事件表現為下拉列表,強制關閉內部點擊下拉列表。 單擊內部下拉列表時限制關閉事件,如下所示
<script type="text/javascript">
$('#someyourContainer').click(function (e) {
e.stopPropagation();
});
</script>
事件冒泡是那里的主要罪魁禍首,你可以使用event.stopPropagation();
對於展開的dropdown-menu
,單擊展開的下拉dropdown-menu
會自動關閉。
$('.dropdown-menu').on('click', function(event) { event.stopPropagation(); });
body { padding-top: 50px; } .dropdown.dropdown-lg .dropdown-menu { margin-top: -1px; padding: 6px 20px; } .input-group-btn .btn-group { display: flex !important; } .btn-group .btn { border-radius: 0; margin-left: -1px; } .btn-group .btn:last-child { border-top-right-radius: 4px; border-bottom-right-radius: 4px; } .form-horizontal .btn[type="submit"] { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } .form-horizontal .form-group { margin-left: 0; margin-right: 0; } .form-group .form-control:last-child { border-top-left-radius: 4px; border-bottom-left-radius: 4px; } @media screen and (min-width: 768px) { #adv-search { width: 500px; margin: 0 auto; } .dropdown.dropdown-lg { position: static !important; } .dropdown.dropdown-lg .dropdown-menu { min-width: 500px; } }
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js"></script> <div class="container"> <div class="row"> <div class="col-md-12"> <form class="form-horizontal" role="form"> <div class="input-group" id="adv-search"> <input type="text" class="form-control" placeholder="Search for snippets" /> <div class="input-group-btn"> <div class="btn-group" role="group"> <div class="dropdown dropdown-lg"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false"><span class="caret"></span> </button> <div class="dropdown-menu dropdown-menu-right" role="menu"> <div class="form-group"> <label for="filter">Filter by</label> <select class="form-control"> <option value="0" selected>All Snippets</option> <option value="1">Featured</option> <option value="2">Most popular</option> <option value="3">Top rated</option> <option value="4">Most commented</option> </select> </div> <div class="form-group"> <label for="contain">Author</label> <input class="form-control" type="text" /> </div> <div class="form-group"> <label for="contain">Contains the words</label> <input class="form-control" type="text" /> </div> <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span> </button> </div> </div> <button type="button" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span> </button> </div> </div> </div> </form> </div> </div>
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