javascript - 如何使用 JavaScript 触发模态?
问题描述
当我点击一个元素时,我想在我的文档中显示一个模式。我能够使其与默认引导程序“数据切换”和“数据目标”属性一起使用。但是当我尝试使用 JavaScript 实现相同的效果时,模式并没有出现。以下是相关代码:
<span class="navbar-text">
<a href="" id="login">
<span class="fa fa-sign-in fa-lg"></span>
Login
</a>
</span>
<script>
$(document).ready(function () {
$("#login").click(function () {
$("#loginModal").modal('show');
});
});
</script>
它只是似乎在模态中消失了一秒钟,但没有出现。
下面是我试图展示的模态 div:
<div id="loginModal" class="modal fade" role="dialog">
<div class="modal-dialog modal-lg" role="content">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">Login</h4>
<button type="button" class="close" data-dismiss="modal">
×
</button>
</div>
<div class="modal-body">
<form>
<div class="form-row">
<div class="form-group col-sm-4">
<label class="sr-only" for="exampleInputEmail3">Email address</label>
<input type="email" class="form-control form-control-sm mr-1" id="exampleInputEmail3"
placeholder="Enter email">
</div>
<div class="form-group col-sm-4">
<label class="sr-only" for="exampleInputPassword3">Password</label>
<input type="password" class="form-control form-control-sm mr-1" id="exampleInputPassword3"
placeholder="Password">
</div>
<div class="col-sm-auto">
<div class="form-check">
<input class="form-check-input" type="checkbox">
<label class="form-check-label"> Remember me
</label>
</div>
</div>
</div>
<div class="form-row">
<button type="button" class="btn btn-secondary btn-sm ml-auto"
data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary btn-sm ml-2">Sign in</button>
</div>
</form>
</div>
</div>
</div>
</div>
解决方案
您的代码是正确的,但您没有提供任何 HTML。我只能假设您按照以下指南设置您的网站。
编辑:由于您提供了 HTML,因此您的问题是您的href
内容是空的,因此它将转到一个空页面。将锚点更改href
为#
或使其成为按钮,如下面的完整示例所示。
<a href="#" id="login">
这是一个完美的解释:href 不能重新加载。你甚至可以参加一个onClick
很好的衡量标准。
您的固定代码
$(function() {
$("#login").click(function() {
$("#loginModal").modal('show');
});
});
.navbar-text {
display: block;
border: thin solid #007bff;
margin: 1em;
padding: 0.5em;
border-radius: 0.5em;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css">
<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>
<span class="navbar-text">
<a href="#" id="login">
<span class="fa fa-sign-in fa-lg"></span> Login
</a>
</span>
<div id="loginModal" class="modal fade" role="dialog">
<div class="modal-dialog modal-lg" role="content">
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">Login</h4>
<button type="button" class="close" data-dismiss="modal">×</button>
</div>
<div class="modal-body">
<form>
<div class="form-row">
<div class="form-group col-sm-4">
<label class="sr-only" for="exampleInputEmail3">Email address</label>
<input type="email" class="form-control form-control-sm mr-1" id="exampleInputEmail3" placeholder="Enter email">
</div>
<div class="form-group col-sm-4">
<label class="sr-only" for="exampleInputPassword3">Password</label>
<input type="password" class="form-control form-control-sm mr-1" id="exampleInputPassword3" placeholder="Password">
</div>
<div class="col-sm-auto">
<div class="form-check">
<input class="form-check-input" type="checkbox">
<label class="form-check-label"> Remember me</label>
</div>
</div>
</div>
<div class="form-row">
<button type="button" class="btn btn-secondary btn-sm ml-auto" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary btn-sm ml-2">Sign in</button>
</div>
</form>
</div>
</div>
</div>
</div>
完整按钮示例
Modal 文档有多个窗口示例。我结合了以下四个文档示例,为 Bootstrap 站点创建了一个可用的“登录”功能。
重要步骤
- 确保您的按钮
id
是"login"
- 确保您的模态窗口
id
是"loginModal"
- 确保您的模态窗口布局正确
- 确保您的模态窗口具有正确的淡入淡出类
资源
- https://getbootstrap.com/docs/4.0/getting-started/download/
- https://getbootstrap.com/docs/4.0/examples/pricing/
- https://getbootstrap.com/docs/4.0/components/modal/
- https://getbootstrap.com/docs/4.0/components/forms/
$(function() {
$("#login").click(function() {
$("#loginModal").modal('show');
});
});
html {
font-size: 14px;
}
@media (min-width: 768px) {
html {
font-size: 16px;
}
}
.container {
max-width: 960px;
}
.pricing-header {
max-width: 700px;
}
.border-top {
border-top: 1px solid #e5e5e5;
}
.border-bottom {
border-bottom: 1px solid #e5e5e5;
}
.box-shadow {
box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css">
<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>
<div class="d-flex flex-column flex-md-row align-items-center p-3 px-md-4 mb-3 bg-white border-bottom box-shadow">
<h5 class="my-0 mr-md-auto font-weight-normal">Company name</h5>
<nav class="my-2 my-md-0 mr-md-3">
<a class="p-2 text-dark" href="#">Features</a>
<a class="p-2 text-dark" href="#">Enterprise</a>
<a class="p-2 text-dark" href="#">Support</a>
<a class="p-2 text-dark" href="#">Pricing</a>
</nav>
<a class="btn btn-outline-primary" id="login" href="#">
<span class="fa fa-sign-in fa-lg"></span> Log In
</a>
</div>
<div class="pricing-header px-3 py-3 pt-md-5 pb-md-4 mx-auto text-center">
<h1 class="display-4">Pricing</h1>
<p class="lead">Quickly build an effective pricing table for your potential customers with this Bootstrap example. It's built with default Bootstrap components and utilities with little customization.</p>
</div>
<div id="loginModal" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Log In</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form>
<div class="form-group row">
<label for="inputEmail" class="col-sm-2 col-form-label">Email</label>
<div class="col-sm-10">
<input type="email" class="form-control" id="inputEmail" value="email@example.com">
</div>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-2 col-form-label">Password</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="inputPassword" placeholder="Password">
</div>
</div>
</form>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-primary">Log In</button>
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
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