如何在Bootstrap模态框中传递值到href链接？

Question

我希望清除某个表格的值，因此我想使用Bootstrap模态框获取表格名称。我希望在URL中获得表格名称。

这是我的代码： 在这里，我将表格名称发送到模态框中。

<ol class="breadcrumb text-center">
  <li class="breadcrumb-item">
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product1">Insert1</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product2">Insert2</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product3">Insert3</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product4">Insert4</a>
</ol>

我想把data-table里面的值传递到href中，格式为clear.php?clear_id="table_name"

<div class="modal fade" id="scrapModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel1" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel1">Confirm Clear?</h5>
        <button class="close" type="button" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">×</span>
        </button>
      </div>
      <div class="modal-body">Are you sure you want to clear scrap for this table.</div>
      <div class="modal-footer">
        <button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
        <a class="btn btn-danger" href="clear.php?clear_id=">Clear</a>
      </div>
    </div>
  </div>
</div>

非常感谢您的提前帮助！

- Dipanshu Chaubey

Answer 1

您可以通过利用shown.bs.modal事件触发器并使用事件对象中提供的relatedTarget属性中的data-table属性来构建URL，从而动态更改模态框中清除按钮的href值。我已添加了清除按钮的单击事件以视觉上强调这一点。

$('#scrapModal').on('show.bs.modal', function (e) {
  var table = $(e.relatedTarget).data('table')
  var href = 'clear.php?clear_id=' + table
  $('.btn-danger', this).attr('href', href)
  console.log(href)
})

// Simulate "clear" button click to alert href value
$('#scrapModal .btn-danger').on('click', function (e) {
  e.preventDefault()
  alert(e.target.pathname + e.target.search)
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" rel="stylesheet"/>

<ol class="breadcrumb text-center">
  <li class="breadcrumb-item">
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product1">Insert1</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product2">Insert2</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product3">Insert3</a>
     <a class="btn btn-primary" href="#scrapModal" data-toggle="modal" data-table="product4">Insert4</a>
  </li>
</ol>

<div class="modal fade" id="scrapModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel1" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel1">Confirm Clear?</h5>
        <button class="close" type="button" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&#215;</span>
        </button>
      </div>
      <div class="modal-body">
        Are you sure you want to clear scrap for this table.
      </div>
      <div class="modal-footer">
        <button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
        <a class="btn btn-danger" href="#">Clear</a>
      </div>
    </div>
  </div>
</div>

- Cue

Answer 2

将以下代码行放入您的脚本标签中，这样应该就可以正常工作。

$('#scrapModal .btn-danger').on('click', function (e) {
  e.preventDefault()
  alert(e.target.pathname + e.target.search)
})

- Siddhinath

Answer 3

你可以使用类似这样的简单脚本来完成它：

$('#scrapModal').on('show.bs.modal', function (event) {
  var table = $(event.relatedTarget).data('table');
  $(this).find('.btn-danger').attr("href", "clear.php?clear_id=" + table);
)}

这段代码将在模态框出现时运行。为了更加优雅地查找确认按钮，最好给它添加一个id属性。

您可以在此处找到有关变化模态框内容的更多信息：https://getbootstrap.com/docs/4.0/components/modal/#varying-modal-content

- Imre Kis