Question

我在我的网页上使用Bootstrap 4，我遇到导航标签的问题。

我需要通过超链接从登录标签内容页面打开忘记密码标签。

下面的代码在Bootstrap 3中为我工作，但在Bootstrap 4

中没有

<ul class="nav nav-tabs" role="tablist">
    <li class="nav-item"><a class="nav-link active" href="#log-in" data-toggle="tab">Log in</a></li>
    <li class="nav-item"><a class="nav-link" href="#forgot-password" data-toggle="tab">Forgot password</a></li>
    <li class="nav-item"><a class="nav-link" href="#sign-up" data-toggle="tab">Sign up</a></li>
</ul>
<div class="tab-content">
    <div class="tab-pane fade show active" id="log-in">
        Login tab
        <a href="#forgot-password" data-toggle="tab">Go to Forget Password</a>
    </div>
    <div class="tab-pane fade" id="forgot-password">Forgt password tab</div>
    <div class="tab-pane fade" id="sign-up">sign-up tab</div>
</div>

Answer 1

我可以考虑两种方法来解决这个问题：

由于Bootstrap 4不使用网址#hash es进行标签导航，因此简单的javascript可以在常规链接上收听点击事件，并且触发额外点击 - 在相应的标签。
使用网址#hash es并根据该值的更改打开标签。这种方法还具有以下优点：标签可以直接链接，因此您可以使用例如example.com #sign-up打开一个打开特定标签的页面。

下面您将找到每种方法的两个片段。

<强> 1。在引擎盖下点击：

＆＃13;

$('.tab-link').on('click', function(event) {
    // Prevent url change
    event.preventDefault();
    
    // `this` is the clicked <a> tag
    $('[data-toggle="tab"][href="' + this.hash + '"]').trigger('click');
})

＆＃13;

<ul class="nav nav-tabs" id="myTab" role="tablist">
    <li class="nav-item">
        <a class="nav-link active" id="log-in-tab" data-toggle="tab" href="#log-in" role="tab" aria-controls="log-in" aria-selected="true">Log in</a>
    </li>
    <li class="nav-item">
        <a class="nav-link" id="forgot-password-tab" data-toggle="tab" href="#forgot-password" role="tab" aria-controls="forgot-password" aria-selected="false">Forgot password</a>
    </li>
    <li class="nav-item">
        <a class="nav-link" id="sign-up-tab" data-toggle="tab" href="#sign-up" role="tab" aria-controls="sign-up" aria-selected="false">Sign up</a>
    </li>
</ul>

<div class="tab-content" id="myTabContent">
    <div class="tab-pane fade show active" id="log-in" role="tabpanel" aria-labelledby="log-in-tab">
        Login tab<br />
        <a href="#forgot-password" Xdata-toggle="tab" class="tab-link">Go to Forget Password</a>
    </div>
    
    <div class="tab-pane fade" id="forgot-password" role="tabpanel" aria-labelledby="forgot-password-tab">
        Forgt password tab
    </div>

    <div class="tab-pane fade" id="sign-up" role="tabpanel" aria-labelledby="sign-up-tab">
        Sign-up tab
    </div>
</div>


<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>

＆＃13;

<强> 2。在网址中使用哈希：

＆＃13;

$(document).ready(function() {
    function onHashChange() {
        var hash = window.location.hash;

        if (hash) {
            // using ES6 template string syntax
            $(`[data-toggle="tab"][href="${hash}"]`).trigger('click');
        }
    }

    window.addEventListener('hashchange', onHashChange, false);
    onHashChange();
});

＆＃13;

<ul class="nav nav-tabs" id="myTab" role="tablist">
    <li class="nav-item">
        <a class="nav-link active" id="log-in-tab" data-toggle="tab" href="#log-in" role="tab" aria-controls="log-in" aria-selected="true">Log in</a>
    </li>
    <li class="nav-item">
        <a class="nav-link" id="forgot-password-tab" data-toggle="tab" href="#forgot-password" role="tab" aria-controls="forgot-password" aria-selected="false">Forgot password</a>
    </li>
    <li class="nav-item">
        <a class="nav-link" id="sign-up-tab" data-toggle="tab" href="#sign-up" role="tab" aria-controls="sign-up" aria-selected="false">Sign up</a>
    </li>
</ul>

<div class="tab-content" id="myTabContent">
    <div class="tab-pane fade show active" id="log-in" role="tabpanel" aria-labelledby="log-in-tab">
        Login tab<br />
        <a href="#forgot-password" Xdata-toggle="tab" class="tab-link">Go to Forget Password</a>
    </div>
    
    <div class="tab-pane fade" id="forgot-password" role="tabpanel" aria-labelledby="forgot-password-tab">
        Forgt password tab
    </div>

    <div class="tab-pane fade" id="sign-up" role="tabpanel" aria-labelledby="sign-up-tab">
        Sign-up tab
    </div>
</div>


<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>

＆＃13;

Answer 2

这可以通过触发一个在单击链接时更改选项卡的函数来实现。

<强> HTML

<ul class="nav nav-tabs" role="tablist" id="myTabs">
  <li class="nav-item">
    <a class="nav-link active" href="#log-in" data-toggle="tab">Log in</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#forgot-password" data-toggle="tab">Forgot password</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" href="#sign-up" data-toggle="tab">Sign up</a>
  </li>
</ul>
<div class="tab-content">
  <div class="tab-pane fade show active" id="log-in">
    Login tab
    <a href="#forgot-password" data-toggle="tab" class="forgot-password-link">Go to Forget Password</a>
  </div>
  <div class="tab-pane fade" id="forgot-password">Forgt password tab</div>
  <div class="tab-pane fade" id="sign-up">sign-up tab</div>
</div>

<强>的Javascript

$( ".forgot-password-link" ).click(function() {
    $('#myTabs li:nth-child(2) a').tab('show')
});

Codepen示例：https://codepen.io/Washable/pen/VQYewy

如何从外部链接打开选项卡？

2 个答案: