javascript 单击表格行上的任意位置，它会选中其在...中的复选框？

click anywhere on a table row and it will check the checkbox its in...?

提问by saint

I'm trying to figure out how to do this, but I can't find it out. Basically I want to be able to click anywhere on a table row and it will check/ unchecked the checkbox its in. I know it's possible because that's what PHPMyAdmin does...

我想弄清楚如何做到这一点，但我找不到。基本上我希望能够点击表格行上的任何地方，它会选中/取消选中它所在的复选框。我知道这是可能的，因为这就是 PHPMyAdmin 所做的......

here is my table row

这是我的表格行

<tbody>
<tr id="1" onclick="selectRow(1)"><td width="20px"><input type="checkbox" id="1" name="1/"></td><td>1</td><td>2011-04-21 22:04:56</td><td>action</td></tr>

<tr id="2" onclick="selectRow(2)"><td width="20px"><input type="checkbox" id="2" name="2/"></td><td>2</td><td>2011-04-21 22:04:56</td><td>action</td></tr>

</tbody>

回答by canon

<script type="text/javascript">
function selectRow(row)
{
    var firstInput = row.getElementsByTagName('input')[0];
    firstInput.checked = !firstInput.checked;
}
</script>

...

...

<tbody>
    <tr onclick="selectRow(this)"><td width="20px"><input type="checkbox" id="chk1" name="chk1/"></td><td>1</td><td>2011-04-21 22:04:56</td><td>action</td></tr>    
    <tr onclick="selectRow(this)"><td width="20px"><input type="checkbox" id="chk2" name="chk2/"></td><td>2</td><td>2011-04-21 22:04:56</td><td>action</td></tr>  
</tbody>

_{Note: You've also got collisions on ids. Your ids should be unique.}

_{注意：您还遇到了 id 冲突。您的 ID 应该是唯一的。}

Here's an alternative with programmatic binding:

这是编程绑定的替代方法：

document.querySelector("table").addEventListener("click", ({target}) => {
  // discard direct clicks on input elements
  if (target.nodeName === "INPUT") return;
  // get the nearest tr
  const tr = target.closest("tr");
  if (tr) {
    // if it exists, get the first checkbox
    const checkbox = tr.querySelector("input[type='checkbox']");
    if (checkbox) {
      // if it exists, toggle the checked property
      checkbox.checked = !checkbox.checked;
    }
  }
});

<table>
  <tbody>
    <tr>
      <td>
        <input type="checkbox" id="chk1" name="chk1" />
      </td>
      <td>1</td>
      <td>2011-04-21 22:04:56</td>
      <td>action</td>
    </tr>
    <tr>
      <td>
        <input type="checkbox" id="chk2" name="chk2" />
      </td>
      <td>2</td>
      <td>2011-04-21 22:04:56</td>
      <td>action</td>
    </tr>
    <tr>
      <td>
        <input type="checkbox" id="chk2" name="chk3" />
      </td>
      <td>2</td>
      <td>2011-04-21 25:30:16</td>
      <td>action</td>
    </tr>
  </tbody>
</table>

回答by Gerald Schneider

You don't need JavaScript for this:

您不需要为此使用 JavaScript：

td label {
  display: block;
}

<td width="20px"><input type="checkbox" id="chk2" name="chk2/"></td><td><label for="chk2">2</label></td><td><label for="chk2">2011-04-21 22:04:56</label></td><td><label for="chk2">action</label></td>

Just labels and a little CSS.

只是标签和一点 CSS。

回答by Duda Nogueira

Try this one out...

试试这个...

$("tr").click(function() {
    var checkbox = $(this).find("input[type='checkbox']");
    checkbox.attr('checked', !checkbox.attr('checked'));
});

http://jsfiddle.net/dVay8/

http://jsfiddle.net/dVay8/