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当我点击bootstrap中的下拉菜单时它会打开然后自动关闭

[英]When I click on dropdown-menu in bootstrap It opens and then close automatically

 原文  2016-08-31 05:28:01  6   2    javascript/ php/ html/ css/ twitter-bootstrap

问题描述

 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>

I am trying to create advance search for php project. 我正在尝试为php项目创建高级搜索。 but my problem is that when i click internal dropdown menu - its open but then i release mouse button it automatically close. 但我的问题是，当我点击内部下拉菜单 - 它打开然后我释放鼠标按钮它会自动关闭。

I am using bootstrap 3.3.6. 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>

2 个解决方案

解决方案1
 0  2016-08-31 06:02:47

I have named the following div with the id 'someyourContainer'. 我用id“someyourContainer”命名了以下div。 

<div class="dropdown-menu dropdown-menu-right" role="menu" id="someyourContainer">

The toggle event of the button behaving as a dropdown is forcing to close the internal dropdown on clicks. 按钮的切换事件表现为下拉列表，强制关闭内部点击下拉列表。 Restrict the close event when the internal dropdown is clicked like below 单击内部下拉列表时限制关闭事件，如下所示 

 <script type="text/javascript">
        $('#someyourContainer').click(function (e) {
            e.stopPropagation();
        });
    </script>

解决方案2
 0 已采纳  2016-08-31 06:05:06

Event Bubbling is the main culprit there and you can stop that using event.stopPropagation(); 事件冒泡是那里的主要罪魁祸首，你可以使用event.stopPropagation(); for your expanded dropdown-menu and it closes itself when click on expanded dropdown. 对于展开的dropdown-menu ，单击展开的下拉dropdown-menu会自动关闭。 

 $('.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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