how to set active class to nav menu from twitter b

2020-02-02 06:51发布

站内问答 / JavaScript
891 13 5

I'm new to the twitter bootstrap. Using there navigation menus . I'm trying to set active class to selected menu. my menu is - 

<div class="nav-collapse">
  <ul class="nav">
    <li id="home" class="active"><a href="~/Home/Index">Home</a></li>
    <li><a href="#">Project</a></li>
    <li><a href="#">Customer</a></li>
    <li><a href="#">Staff</a></li>
    <li  id="broker"><a href="~/Home/Broker">Broker</a></li>
    <li><a href="#">Sale</a></li>
  </ul>
</div>

I tried following thing after googling on this that i have to set active class on each page from menu like as--

<script>
  $(document).ready(function () {
    $('#home').addClass('active');
  });
</script>

but problem for above is that i set home menu selected by default. Then it always get selected. Is there any other way to do this ? , or which i can generalize and keep my js in layout file itself?

After executing application my menu looks - enter image description here

after clicking on other menu item i get following result- enter image description here

And i added following scripts on Index view and Broker view ---

<script>
  $(document).ready(function () {
    $('#home').addClass('active');
  });
</script>

<script>
  $(document).ready(function () {
    $('#broker').addClass('active');
  });
</script>

respectively.

13条回答
我想做一个坏孩纸
2楼-- · 2020-02-02 07:24 
(function (window) {
bs3Utils = {}
bs3Utils.nav = {
    activeTab: function (tabId) {
        /// <summary>
        /// 设置需要展现的tab
        /// </summary>
        /// <param name="tabId"></param>
        $('.nav-tabs a[href="#' + tabId + '"]').tab('show');
    }
}
window.bs3Utils = bs3Utils;
})(window);

example:

var _actvieTab = _type == '0' ? 'portlet_tab2_1' : 'portlet_tab2_2';
            bs3Utils.nav.activeTab(_actvieTab);
                        <ul class="nav nav-tabs">
                        <li class="active">
                            <a href="#portlet_tab2_1" data-toggle="tab">箱-单灯节点 </a>
                        </li>
                        <li>
                            <a href="#portlet_tab2_2" data-toggle="tab">箱-灯组节点 </a>
                        </li>

                    </ul>
查看更多
0人赞 添加讨论(0) 举报
混吃等死
3楼-- · 2020-02-02 07:26

For single-page sites where the menu items simply jump down to other sections of the page, this simple solution works for me:

$('.nav li').on('click', function(){
    $('.nav li').removeClass('active');
    $(this).addClass('active');
  });
查看更多
0人赞 添加讨论(0) 举报
唯我独甜
4楼-- · 2020-02-02 07:26

I am using Flask Bootstrap. My solution is a little bit simpler because my template already receives the option or choice as a parameter from Flask. 

var choice = document.getElementById("{{ item_kind }}");
choice.className += "active";

First line, js code gets the element. So, you should identify each of the elements with a id. I'll show an example below. Second line, you add the class active. You can see html ids below. 

<div class="navbar-collapse collapse">
    <ul class="nav navbar-nav"> 
        <li>
            <a id="speed" href="{{ url_for('list_gold_per_item',item_kind='speed',level='2') }}">
                <h2>Speed</h2>
            </a>
        </li>
        <li>
            <a id="life" href="{{ url_for('list_gold_per_item',item_kind='life',level='3') }}">
                <h2>Life</h2>
            </a>
        </li>
    </ul>
</div>

查看更多
0人赞 添加讨论(0) 举报
看我几分像从前
5楼-- · 2020-02-02 07:28

You can use this JavaScript\jQuery code:

// Sets active link in Bootstrap menu
// Add this code in a central place used\shared by all pages
// like your _Layout.cshtml in ASP.NET MVC for example
$('a[href="' + this.location.pathname + '"]').parents('li,ul').addClass('active');

It'll set the <a>'s parent <li> and the <li>'s parent <ul> as active.

A simple solution that works!

Original source:

Bootstrap add active class to li

查看更多
0人赞 添加讨论(0) 举报
Bombasti
6楼-- · 2020-02-02 07:31

You could add a diffrent class onto the BODY tag on each page e.g. on the homepage you could have this:

<body class="nav-1-on">

Then this css:

.nav-1-on .nav-1 a, .nav-2-on .nav-2 a, .nav-3-on .nav-3 a, .nav-4-on .nav-4 a {
     // set your styles here
}

The NAV element:

<ul>
  <li class="nav-1"><a href="#">Home</a></li>
  <li class="nav-2"><a href="#">Services</a></li>
  <li class="nav-3"><a href="#">About</a></li>
  <li class="nav-4"><a href="#">Contact</a></li>
</ul>
#

Alternatively you could place a class on the BODY on each page and then grab that via jQuery and add the .active class to the correct nav item based on that tag.

查看更多
0人赞 添加讨论(0) 举报
【Aperson】
7楼-- · 2020-02-02 07:33 
<div class="nav-collapse">
                <ul class="nav">
                    <li class="home"><a href="~/Home/Index">Home</a></li>
                    <li class="Project"><a href="#">Project</a></li>
                    <li class="Customer"><a href="#">Customer</a></li>
                    <li class="Staff"><a href="#">Staff</a></li>
                    <li class="Broker"><a href="~/Home/Broker">Broker</a></li>
                    <li class="Sale"><a href="#">Sale</a></li>
                </ul>
</div>

$('ul.nav>li.home>a').click();  // first. same to all the other options changing the li class name
查看更多
0人赞 添加讨论(0) 举报
上一页 1 2 3 下一页
登录 后发表回答
相关问题
查看全部
相关文章
查看全部
收藏的人(5)