javascript - 如何使用 jQuery 或 Javascript 制作模态弹出窗口以获取输入值？

Question

我想单击我的文本字段并打开一个模式弹出窗口以在模式中输入文本，当我关闭模式时，文本将显示在我的文本字段中

我刚刚在 js 中尝试过，但它不起作用，我正在寻找 jQuery 方法..但我是 jQuery 新手。

document.getElementById('narrat_ok').myfunction('click', function() {
  document.getElementById('cash_narrat').value = document.getElementById('cash_text').value
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<td>
  <input type="text" id="cash_narrat" placeholder="Enter here" class="form-control narate" pattern="[a-zA-Z0-9-_.]{1,20}" name="cash_narrat" data-toggle="modal" data-target="#narratModal" />
</td>

<div class="modal fade" id="narratModal" tabindex="-1" role="dialog" aria-labelledby="narratModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close cash-dismiss" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title modal_head" id="narratModalLabel">Narration</h4>
      </div>
      <div class="modal-body">
        <label class="modal_note">Note: Only alphabets A-Z a-z number 0-9 and characters % & [] () - _ . , are allowed in text</label>
        <textarea class="cash_text" pattern="[a-zA-Z0-9-_.]{1,20}" id="cash_text">
                                                                Enter Here...
                                                            </textarea>
        <span class="modal_valid">0/200 Characterts entered</span>
      </div>
      <div class="modal-footer narr_footer">
        <button type="button" class="btn btn-primary cashmodal_btn" id="narrat_ok" data-dismiss="modal">OK</button>
      </div>
    </div>
  </div>
</div>

Answer 1

实现此目的的一种方法是捕获 hide.bs.modal Bootstrap 模态的事件。从那里，您可以获取模态内部的输入值，然后将其放入外部的输入中。

目前，每次模式关闭时，无论您是否单击按钮，它都会获取该值

我还删除了模式中的文本以简化它

$('#narratModal').on('hide.bs.modal', function() {
  let val = $('.myInput').val();
  $('#cash_narrat').val(val);
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<td>
  <input type="text" id="cash_narrat" placeholder="Enter here" class="form-control narate" pattern="[a-zA-Z0-9-_.]{1,20}" name="cash_narrat" data-toggle="modal" data-target="#narratModal" />
</td>

<div class="modal fade" id="narratModal" tabindex="-1" role="dialog" aria-labelledby="narratModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <h4 class="modal-title modal_head" id="narratModalLabel">Narration</h4>
        <button type="button" class="close cash-dismiss" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
      </div>
      <div class="modal-body">
        <label class="modal_note">Input</label>
        <input class="myInput form-control form-control-sm" />
      </div>
      <div class="modal-footer narr_footer">
        <button type="button" class="btn btn-primary cashmodal_btn" id="narrat_ok" data-dismiss="modal">OK</button>
      </div>
    </div>
  </div>
</div>

或者，如果您确实只想使用按钮，这里有另一个版本

$('.cashmodal_btn').on('click', function() {
  let val = $('.myInput').val();
  $('#cash_narrat').val(val);
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<td>
  <input type="text" id="cash_narrat" placeholder="Enter here" class="form-control narate" pattern="[a-zA-Z0-9-_.]{1,20}" name="cash_narrat" data-toggle="modal" data-target="#narratModal" />
</td>

<div class="modal fade" id="narratModal" tabindex="-1" role="dialog" aria-labelledby="narratModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <h4 class="modal-title modal_head" id="narratModalLabel">Narration</h4>
        <button type="button" class="close cash-dismiss" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
      </div>
      <div class="modal-body">
        <label class="modal_note">Input</label>
        <input class="myInput form-control form-control-sm" />
      </div>
      <div class="modal-footer narr_footer">
        <button type="button" class="btn btn-primary cashmodal_btn" id="narrat_ok" data-dismiss="modal">OK</button>
      </div>
    </div>
  </div>
</div>