css Bootstrap 5 -页面加载时模态打开

pbwdgjma 于 2023-02-01 发布在 Bootstrap

关注(0)|答案(2)|浏览(170)

我正在尝试实现一个模态，当页面加载到学校作业时自动打开。我使用Bootstrap 5，我在网上找到的所有示例都使用旧版本。模态可以在注解Vertically Centered Cookies Modal下找到。我使用了Bootstrap CDN以及来自https://getbootstrap.com/的Popper Bundle。这是我的代码：

<!DOCTYPE HTML>
<html lang="en-AU">
<head>
    <!-- Require Meta Tags -->
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        
    <!-- CDN - Bootstrap CSS -->
        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
    
    <!-- Title -->
        <title>Title Here</title>
    
    <!-- Webpage Icon -->
        <link rel="shortcut icon" href="Images\Pilot640_Logo_Symbol.ico"/>
        

</head>

<body>      

<!-- Nav Bar -->
<nav class="navbar navbar-expand-sm bg-secondary navbar-white">
    <div class="container-fluid">
        <a class="navbar-brand" href="#">
        <img src="Images\Pilot640_Logo_Symbol.ico" alt="Logo" style="width:100px;" class="rounded-pill">
        </a>
    </div>
</nav>

<!-- Header Section -->
<header> 

</header> 

<!-- Vertically Centered Cookies Modal -->

<div class="modal-dialog modal-dialog-centered" id="onload">
    <div class="modal-content">
        <div class="modal-header">
            <h5 class="modal-title" id="exampleModalLabel">Do You Want Cookie? We Want Yours! 🍪</h5>
        </div>
        <div class="modal-body">
            This site uses cookies to personalies the content for you.
        </div>
        <div class="modal-footer">
            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
        </div>
    </div>
</div>

<!-- Bootstrap Bundle with Popper -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
    
<!--Modal JS Script --> 
<script type="text/javascript">
    $(window).load(function(){
        $('#onload').modal('show');
    });
</script>
    
</body>
</html>

如果有人知道问题是什么或者如何制造一个，帮助将会非常感激。

css

来源：https://stackoverflow.com/questions/69534538/bootstrap-5-modal-open-on-page-load

2条答案

按热度按时间

js4nwp541#

首先欢迎来到Stackoverflow社区。
正如您所要求的，您已经首先更正了模态对话框代码片段。您已经错过了模态的第一行。您必须将id添加到该行，而不是添加到modal-dialog div

<div class="modal fade" id="onload" tabindex="-1" aria-labelledby="exampleModalLabel" aria-hidden="true"> <!-- Add this line to your code -->
    <div class="modal-dialog modal-dialog-centered">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="exampleModalLabel">Do You Want Cookie? We Want Yours! 🍪</h5>
            </div>
            <div class="modal-body">
                This site uses cookies to personalies the content for you.
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div> <!-- And the relavant closing div tag -->

然后，你需要导入jquery到你的代码中，否则你的html文件中的jquery代码段将无法工作，最后，不要使用jquery onload事件列表器，而是使用本地VanillaJS window.onload事件来触发你的模态。

<!-- import jquery -->
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>
<!-- Bootstrap Bundle with Popper -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>

<!--Modal JS Script -->
<script type="text/javascript">
    window.onload = () => {
        $('#onload').modal('show');
    }
</script>

然后，引导模式将与预期行为一起工作。

赞(0）回复(0）举报 2023-02-01

mspsb9vt2#

香草JS溶液
HTML将保持不变，但您不需要加载jQuery

<script type="text/javascript">
    window.onload = () => {
      const myModal = new bootstrap.Modal('#onload');
      myModal.show();
    }
</script>

赞(0）回复(0）举报 2023-02-01

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css Bootstrap 5 -页面加载时模态打开

2条答案

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