javascript - 使用 javascript 查找活动的引导模式

Question

我确实有动态生成的具有不同 ID 的模态。我想知道打开/显示给用户的模式。我有一个解决方案，如果我知道模型的 id 为

  $('#modelId').on('show.bs.modal', function (event) {  // modelId is dynamic
      var button = $(event.relatedTarget); 
      var productid = button.data('target');
      console.log(productid)
});

但是当我们不知道用户触发了哪个modal时，如何获取modalId呢？

标签： javascripttwitter-bootstrap

Answer 1

而是将事件侦听器附加到文档。例子：

$(document).on('show.bs.modal', function(event) { // modelId is dynamic
  var button = $(event.relatedTarget);
  var productid = button.data('target');
  console.log(productid)
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" rel="stylesheet">

<!-- Button trigger modal -->
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">
  Launch exampleModal
</button>
<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal2">
  Launch exampleModal2
</button>

<!-- Modal -->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>
<div class="modal fade" id="exampleModal2" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="exampleModalLabel">Modal title</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        ...
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
        <button type="button" class="btn btn-primary">Save changes</button>
      </div>
    </div>
  </div>
</div>