动态添加菜单项不会在侧边栏导航中切换到Sb Admin 2

Question

I'm new to bootstrap and JQuery. 我是Bootstrap和JQuery的新手。 I am having a problem with SB Admin 2 bootstrap. 我在SB Admin 2引导程序上遇到问题。 I've stripped down an example (Dashboard) page and added a menu item to the sidebar-nav dynamically. 我删除了一个示例（“仪表板”）页面，并向sidebar-nav动态添加了一个菜单项。

The problem is that the new menu item won't toggle / collapse. 问题在于新菜单项不会切换/折叠。

Below is a snippet of the html of side menu which works. 以下是有效的侧面菜单的HTML片段。

 <nav class="navbar navbar-default navbar-static-top" role="navigation" style="margin-bottom: 0">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
        </button>
        <a class="navbar-brand" href="#" id="navbar_brand">SB Admin v2.0</a>
    </div>
    <!-- /.navbar-header -->

    <ul class="nav navbar-top-links navbar-right">
        <li class="dropdown">
            <a class="dropdown-toggle" data-toggle="dropdown" href="#">
    <i class="fa fa-user fa-fw"></i> <i class="fa fa-caret-down"></i>
            </a>
            <ul class="dropdown-menu dropdown-user">
                <li>
        <a href="login.html"><i class="fa fa-sign-out fa-fw"></i> Logout</a>
                </li>
            </ul>
            <!-- /.dropdown-user -->
        </li>
        <!-- /.dropdown -->
    </ul>
    <!-- /.navbar-top-links -->

    <div class="navbar-default sidebar" role="navigation">
        <div class="sidebar-nav navbar-collapse">
            <ul class="nav" id="side-menu">
                <li>
                    <a href="index.html"><i class="fa fa-dashboard fa-fw"></i> Dashboard</a>
                </li>
                <li>
                    <a href="#"><i class="fa fa-files-o fa-fw"></i> Sample Pages<span class="fa arrow"></span></a>
                    <ul class="nav nav-second-level">
                        <li>
                            <a href="blank.html">Blank Page</a>
                        </li>
                        <li>
                            <a href="login.html">Login Page</a>
                        </li>
                    </ul>
                    <!-- /.nav-second-level -->
                </li>
            </ul>
        </div>
        <!-- /.sidebar-collapse -->
    </div>
    <!-- /.navbar-static-side -->
</nav>

To dynamically add a new menu item I've added a click event handler as below. 为了动态添加新的菜单项，我添加了如下的click事件处理程序。

$("#navbar_brand").click(function(){
    $("#side-menu").append('<li><a href="#"><i class="fa fa-files-o fa-fw"></i> TEST Pages<span class="fa arrow"></span></a><ul class="nav nav-second-level"><li><a href="blank.html">Blank Page</a></li><li><a href="login.html">Login Page</a></li></ul></li>');
});

The new menu item appears but doesn't toggle as the original Samples Pages menu. 出现新菜单项，但不会像原始“样本页面”菜单那样切换。 Could somebody help? 有人可以帮忙吗？

TIA TIA

* UPDATE * *更新*

Please find below html file in question. 请在下面的HTML文件中找到相关内容。

<!DOCTYPE html>
<html lang="en">

<head>

    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <meta name="description" content="">
    <meta name="author" content="">

    <title>SB Admin 2 - Bootstrap Admin Theme</title>

    <!-- Bootstrap Core CSS -->
    <link href="vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet">

    <!-- MetisMenu CSS -->
    <link href="vendor/metisMenu/metisMenu.min.css" rel="stylesheet">

    <!-- Custom CSS -->
    <link href="dist/css/sb-admin-2.css" rel="stylesheet">

    <!-- Morris Charts CSS -->
    <link href="vendor/morrisjs/morris.css" rel="stylesheet">

    <!-- Custom Fonts -->
    <link href="vendor/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css">

    <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
        <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
        <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
</head>

<body>

    <div id="wrapper">

        <!-- Navigation -->
        <nav class="navbar navbar-default navbar-static-top" role="navigation" style="margin-bottom: 0">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#" id="navbar_brand">SB Admin v2.0</a>
            </div>
            <!-- /.navbar-header -->

            <ul class="nav navbar-top-links navbar-right">
                <li class="dropdown">
                    <a class="dropdown-toggle" data-toggle="dropdown" href="#">
                        <i class="fa fa-user fa-fw"></i> <i class="fa fa-caret-down"></i>
                    </a>
                    <ul class="dropdown-menu dropdown-user">
                        <li>
                            <a href="login.html"><i class="fa fa-sign-out fa-fw"></i> Logout</a>
                        </li>
                    </ul>
                    <!-- /.dropdown-user -->
                </li>
                <!-- /.dropdown -->
            </ul>
            <!-- /.navbar-top-links -->

            <div class="navbar-default sidebar" role="navigation">
                <div class="sidebar-nav navbar-collapse">
                    <ul class="nav" id="side-menu">
                        <li>
                            <a href="index.html"><i class="fa fa-dashboard fa-fw"></i> Dashboard</a>
                        </li>
                        <li>
                            <a href="#"><i class="fa fa-files-o fa-fw"></i> Sample Pages<span class="fa arrow"></span></a>
                            <ul class="nav nav-second-level">
                                <li>
                                    <a href="blank.html">Blank Page</a>
                                </li>
                                <li>
                                    <a href="login.html">Login Page</a>
                                </li>
                            </ul>
                            <!-- /.nav-second-level -->
                        </li>
                    </ul>
                </div>
                <!-- /.sidebar-collapse -->
            </div>
            <!-- /.navbar-static-side -->
        </nav>

        <div id="page-wrapper">
            <div class="row">
                <div class="col-lg-12">
                    <h1 class="page-header">Dashboard</h1>
                </div>
                <!-- /.col-lg-12 -->
            </div>
            <!-- /.row -->



            <div class="row">
                <div class="col-lg-6">
                    <div class="panel panel-default">
                        <div class="panel-heading">
                            Hover Rows
                        </div>
                        <!-- /.panel-heading -->
                        <div class="panel-body">
                            <div class="table-responsive">
                                <table class="table table-hover">
                                    <thead>
                                        <tr>
                                            <th>#</th>
                                            <th>First Name</th>
                                            <th>Last Name</th>
                                            <th>Username</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        <tr>
                                            <td>1</td>
                                            <td>Mark</td>
                                            <td>Otto</td>
                                            <td>@mdo</td>
                                        </tr>
                                        <tr>
                                            <td>2</td>
                                            <td>Jacob</td>
                                            <td>Thornton</td>
                                            <td>@fat</td>
                                        </tr>
                                        <tr>
                                            <td>3</td>
                                            <td>Larry</td>
                                            <td>the Bird</td>
                                            <td>@twitter</td>
                                        </tr>
                                    </tbody>
                                </table>
                            </div>
                            <!-- /.table-responsive -->
                        </div>
                        <!-- /.panel-body -->
                    </div>
                    <!-- /.panel -->
                </div>
                <!-- /.col-lg-6 -->

            </div>
            <!-- /.row -->

        </div>
        <!-- /#page-wrapper -->


    </div>
    <!-- /#wrapper -->

    <!-- jQuery -->
    <script src="vendor/jquery/jquery.min.js"></script>

    <!-- Custom Theme JavaScript -->
    <script src="vendor/core/js/common.js"></script>    

    <!-- Metis Menu Plugin JavaScript -->
    <script src="vendor/metisMenu/metisMenu.min.js"></script>

    <!-- Custom Theme JavaScript -->
    <script src="dist/js/sb-admin-2.js"></script>

    <!-- Bootstrap Core JavaScript -->
    <script src="vendor/bootstrap/js/bootstrap.min.js"></script>


    <!-- Page Custom JavaScript code -->
    <script>

    $( window ).on('load', function() {
        console_log("page loadedd");

        $(window).ready(function(){
            console_log("page ready");

            // setup page
            $.pageInit();
        });     
    });

    $.pageInit = function() {

    }

    $("#navbar_brand").click(function(){
        console_log("test");

        $("#side-menu").append('<li><a href="#"><i class="fa fa-files-o fa-fw"></i> TEST Pages<span class="fa arrow"></span></a><ul class="nav nav-second-level"><li><a href="blank.html">Blank Page</a></li><li><a href="login.html">Login Page</a></li></ul></li>');


    });

    </script>
</body>
</html>

Answer 1

Hard to tell exactly what the #side-menu functionality is without being able to look inside the JS scripts you're using, but you need to pay attention to the order in which JavaScript works. 在无法查看正在使用的JS脚本的内部时，很难确切地说出#side-menu功能是什么，但是您需要注意JavaScript的工作顺序。 This is what your browser is doing: 这是您的浏览器正在执行的操作：

Reading the HTML document. 读取HTML文档。
Loading and executing all .js files. 加载并执行所有.js文件。 In here, your plugin is looking for #side-menu and applying functionality to its 2 existing <li> child elements. 在这里，您的插件正在寻找#side-menu并将功能应用于其2个现有的<li>子元素。
Upon clicking on #navbar_brand , it's adding a 3rd <li> child to #side-menu , but this one never has any functionality added to it, since that took place in step 2. 单击#navbar_brand ，它将在#side-menu添加第三个<li>子#side-menu ，但是此子级从未添加任何功能，因为这是在步骤2中进行的。

You have 2 options: 您有2个选择：

Look into the plugin's features, and see if you can initiate it again after you've added the 3rd <li> child. 查看插件的功能，并查看添加第三个<li>子级后是否可以再次启动它。
Have all 3 <li> s built into the HTML document, but have display: none in the CSS for the 3rd one. 将所有3个<li>内置到HTML文档中，但display: none第三个CSS中display: none 。 Once you click on #navbar_brand you can show it by changing its style to display: block or whatever you wish. 单击#navbar_brand ，可以通过将其样式更改为display: block或任何您想要的内容来display: block它。

动态添加菜单项不会在侧边栏导航中切换到Sb Admin 2

问题描述

1 个解决方案

解决方案1
0 已采纳 2017-06-29 21:00:48

动态添加菜单项不会在侧边栏导航中切换到Sb Admin 2

问题描述

1 个解决方案

解决方案1 0 已采纳 2017-06-29 21:00:48

解决方案1
0 已采纳 2017-06-29 21:00:48