我的Bootstrap模式需要点击两次才能打开

Question

最近，我遇到了一个我根本不知道如何解决的错误。

当我单击“ Ver Receita”按钮时，它什么都没有显示，但是如果再次单击，则模式会打开。 我认为问题在于，模态位于外部文件中（由于模态是动态的）。

带按钮的HTML

<button type="button" 
        class="btn btn-success text-center mb-1"
        data-toggle="modal" 
        data-target="#receita" 
        onclick="verReceita(<?php echo $registo['id'];?>)">
Ver Receita
</button>

此按钮触发verReceita.php中的div出现

<div class="modal fade" id="receita">
    <div class="modal-dialog modal-lg">
    <div class="modal-content">
        <div class="modal-header">
        <h1 class="page-header text-center">Detalhes da Receita</h1>
        <button type="button" class="close" data-dismiss="modal">&times;</button>
        </div>

   <div class="modal-body">
      <table class="table table-striped table-bordered border border-dark">

        <tbody>

        </tbody>

      </table>
      <h2>Ingredientes</h2>
      <p>Quero que aqui apareçam os ingredientes associados à receita</p>
      </div>
      <div class="modal-footer">
        <button class="btn btn-success" type="button" class="btn pull-left" data-dismiss="modal">Cancelar</a></button>
      </div>
  </div>
</div>
</div> 

verReceita.php

function verReceita(id){

  var numReceita = id;

  $.post('verReceita.php',{postnumReceita: numReceita},
  function(data){
    $('#result').html(data);
  });
}

我的verReceita.php发出AJAX请求，并将参数发送到外部verReceita.php

关于解决此两击问题有什么建议吗？

Answer 1

发生这种情况是因为您的按钮上有一个onClick侦听器，以及Bootstrap模式触发器。 您可以删除onClick侦听器，也可以从onClick侦听器调用的verReceita函数内触发模式。 下面的代码段显示了两个示例：

 function verReceita() { $('#receita').modal('toggle'); } 

 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous"> <button type="button" class="btn btn-success text-center mb-1" data-toggle="modal" data-target="#receita"> <!-- onclick="verReceita(<?php echo $registo['id'];?>)"> --> Ver Receita </button> <button type="button" class="btn btn-info text-center mb-1" onclick="verReceita()"> Ver Receita 2 </button> <div class="modal fade" id="receita"> <div class="modal-dialog modal-lg"> <div class="modal-content"> <div class="modal-header"> <h1 class="page-header text-center">Detalhes da Receita</h1> <button type="button" class="close" data-dismiss="modal">&times;</button> </div> <div class="modal-body"> <table class="table table-striped table-bordered border border-dark"> <tbody> </tbody> </table> <h2>Ingredientes</h2> <p>Quero que aqui apareçam os ingredientes associados à receita</p> </div> <div class="modal-footer"> <button class="btn btn-success" type="button" class="btn pull-left" data-dismiss="modal">Cancelar</button> </div> </div> </div> </div> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>