获取嵌入式表中最里面的行 [英] Getting the inner-most row in the embedded tables

问题描述

我有一个带有嵌套表的表，问题是在鼠标事件侦听器中，我想获取最深的行.我发现此这几乎是我想要的，但是我没有足够的经验来使用此示例来解决我的问题.成功的关键是在给定 JSFIddle 的情况下，在下面的警告框中显示"2"而不是"1".

I have a table with nested tables.And the problem is that in mouse event listener, I would like to grab the deepest row. I've found this which is almost what I am looking for, but I am not experienced enough to use this example to solve my issue. The key to success is making alert box to display "2" instead of "1" in the below given JSFIddle

<table>
  <tbody>
    <tr id='1'><td>A
      <table>
        <tbody>
          <td><tr id='2'>B</tr></td>
        </tbody>
      </table>
      </td>
    </tr>
  </tbody>
</table>

注意:为简单起见，我介绍了两个级别，但是想问您考虑一下可能有任何级别的嵌入式结构的一般情况.

NOTE: For simplicity, I presented two levels, but would like to ask you consider the general case when any level of embedded structures might be possible.

更新:请参见已更新的JSFiddle 已针对NewToJS的评论进行了修正

UPDATE: See the updated JSFiddle corrected for NewToJS's comment

推荐答案

• 使用 event.stopPropagation()
• 还请注意，td是tr的子级，反之亦然
• Use event.stopPropagation()
• Also note that td is child of tr, not vice versa

Event.stopPropagation()在捕获和冒泡阶段阻止当前事件的进一步传播.

Event.stopPropagation() Prevents further propagation of the current event in the capturing and bubbling phases.

$(function() {
  $(document).on('mouseover', 'tr', function(e) {
    e.stopPropagation();
    console.log(this.id);
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<table>
  <tbody>
    <tr id='1'>
      <td>A
        <table>
          <tbody>
            <tr id='2'>
              <td>B</td>
            </tr>
            <tr id='3'>
              <td>C</td>
            </tr>
          </tbody>
        </table>
      </td>
    </tr>
  </tbody>
</table>

这篇关于获取嵌入式表中最里面的行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！