javascript - 无法验证 Bootstrap 模式弹出窗口中的动态内容

Question

我正在尝试验证模态弹出窗口中的动态内容，但通过单击模态弹出窗口上的按钮添加的动态内容未验证。在下面的工作片段中，单击添加字段后有一个添加字段按钮，但字段已添加到模式中，但问题是动态生成的字段未得到验证。

$(function() {
   $("#newModalForm").validate();
      $('.form-control').each(function() {
           $(this).rules("add", 
            {
                required: true,
                messages: {
                    required: "This field is required",
                }
            });
      }); 
      
      
       $(document).on('click', '#add_field', function (e) {
  $('#dynamic_div').html("<input type=text class=form-control>");
  });
  


});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.14.0/jquery.validate.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#addMyModal">Open Modal</button>
<div class="modal fade" id="addMyModal" role="dialog">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Add Stuff</h4>
      </div>
      <div class="modal-body">
        <form role="form" id="newModalForm">
          <div class="form-group">
            <label class="control-label col-md-3" for="email">A p Name:</label>
            <div class="col-md-9">
              <input type="text" class="form-control" id="pName" name="pName" placeholder="Enter a p name"/>
            </div>
          </div>
          <div class="form-group">
            <label class="control-label col-md-3" for="email">Action:</label>
            <div class="col-md-9">
              <input type="text" class="form-control" id="action" name="action" placeholder="Enter and action">
            </div>
          </div>
          
           <div class="form-group">
            <label class="control-label col-md-3" for="email">Dynamic field:</label>
            <div class="col-md-9" id="dynamic_div">
              
            </div>
          </div>
          
          <div class="modal-footer">
            <button type="submit" class="btn btn-success" id="btnSaveIt">Save</button>
            <button type="button" id="add_field" class="btn btn-default">Add Field</button>
            <button type="button" class="btn btn-default" id="btnCloseIt" data-dismiss="modal">Close</button>
          </div>
        </form>
      </div>
    </div>
  </div>
</div>

标签： javascripthtmljquery

Answer 1

您可以添加一个函数来验证添加的新输入：

$(function() {
    $("#newModalForm").validate();
    $('.form-control').each(function() {
        required($(this))
    });


    $(document).on('click', '#add_field', function(e) {
        $('#dynamic_div').html("<input type=text class=form-control>");
        required($(this))
    });

    function required(el) {
        el.rules("add", {
            required: true,
            messages: {
                required: "This field is required",
            }
        });
    }
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.14.0/jquery.validate.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#addMyModal">Open Modal</button>
<div class="modal fade" id="addMyModal" role="dialog">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        <h4 class="modal-title">Add Stuff</h4>
      </div>
      <div class="modal-body">
        <form role="form" id="newModalForm">
          <div class="form-group">
            <label class="control-label col-md-3" for="email">A p Name:</label>
            <div class="col-md-9">
              <input type="text" class="form-control" id="pName" name="pName" placeholder="Enter a p name"/>
            </div>
          </div>
          <div class="form-group">
            <label class="control-label col-md-3" for="email">Action:</label>
            <div class="col-md-9">
              <input type="text" class="form-control" id="action" name="action" placeholder="Enter and action">
            </div>
          </div>
          
           <div class="form-group">
            <label class="control-label col-md-3" for="email">Dynamic field:</label>
            <div class="col-md-9" id="dynamic_div">
              
            </div>
          </div>
          
          <div class="modal-footer">
            <button type="submit" class="btn btn-success" id="btnSaveIt">Save</button>
            <button type="button" id="add_field" class="btn btn-default">Add Field</button>
            <button type="button" class="btn btn-default" id="btnCloseIt" data-dismiss="modal">Close</button>
          </div>
        </form>
      </div>
    </div>
  </div>
</div>