jquery - 我无法使用 jquery 唯一定位定位元素

Question

我正在做一个元素，我从数据库中汇集图像 src 并将其隐藏，直到单击与图像位置相关的按钮。但是，图像是绝对定位的。下面是我的代码段。

HTML

<div class="table-responsive">
    <table class="table table-bordered table-hover table-striped">
      <thead>
        <tr>
             <th>S/N</th>
             <th>Name</th>
             <th>Phone</th>
             <th>Proof of Payment</th>
             <th>Activate User</th>
        </tr>
    </thead>
    <tbody>

        <tr> 
            <td>1</td>
            <td>Okolo Michael</td>
            <td>08062970094</td>
            <td><button class="btn btn-warning view_pop">View POP</button></td>
            <td><button class="btn btn-primary">Activate User</button></td>
            <div class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></div>
           </tr><tr> 
            <td>2</td>
            <td>Okeke Chidimma</td>
            <td>08044323123</td>
            <td><button class="btn btn-warning view_pop">View POP</button></td>
            <td><button class="btn btn-primary">Activate User</button></td>
            <div class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></div>
          </tr><tr> 
            <td>3</td>
            <td>Anibueze Chigozie</td>
            <td>08162657108</td>
            <td><button class="btn btn-warning view_pop">View POP</button></td>
            <td><button class="btn btn-primary">Activate User</button></td>
           <div class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></div>
          </tr> </tbody>
    </table>
</div> 

JQuery

$('.view_pop').click(function() {
    $(this).parent().siblings('.pop_view').css('display', 'block');
    $(this).html('Viewed');
});

$('.close').click(function() {
    $(this).parent('.pop_view').css('display', 'none');
});

CSS

.pop_view{
    display: none;
    position: absolute;
    z-index: 5;
    top: 25%;
    left: 25%;

}

.close{
    position: relative;
    top: 0;
    right: 0;
}

单击按钮时，图像不显示。如何根据单击的按钮唯一地选择这些图像？

Answer 1

实际上是一个<div>里面<tr>是无效的结构，并且浏览器将其呈现在顶部(整个表本身之外)，这就是您的代码失败的原因(因为它不再是 child/siblings 的 tr/td )。

解决方案:- 转换 <div>至 <td>

工作示例:-

$('.view_pop').click(function() {
    $(this).parent().siblings('.pop_view').css('display', 'block');
    $(this).html('Viewed');
});

$('.close').click(function() {
    $(this).parent('.pop_view').css('display', 'none');
});

.pop_view{
display:none;
float:left;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="table-responsive">
<table class="table table-bordered table-hover table-striped">
<thead>
  <tr>
       <th>S/N</th>
       <th>Name</th>
       <th>Phone</th>
       <th>Proof of Payment</th>
       <th>Activate User</th>
  </tr>
</thead>
<tbody>

  <tr> 
      <td>1</td>
      <td>Okolo Michael</td>
      <td>08062970094</td>
      <td><button class="btn btn-warning view_pop">View POP</button></td>
      <td><button class="btn btn-primary">Activate User</button></td>
      <td class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></td>
     </tr><tr> 
      <td>2</td>
      <td>Okeke Chidimma</td>
      <td>08044323123</td>
      <td><button class="btn btn-warning view_pop">View POP</button></td>
      <td><button class="btn btn-primary">Activate User</button></td>
      <td class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></td>
    </tr><tr> 
      <td>3</td>
      <td>Anibueze Chigozie</td>
      <td>08162657108</td>
      <td><button class="btn btn-warning view_pop">View POP</button></td>
      <td><button class="btn btn-primary">Activate User</button></td>
     <td class="pop_view"><img src="pop/59a178206fade2.43644948.jpg" alt="File not Found"> <span class="close">X</span></td>
    </tr> </tbody>
</table>
</div>