获取< td>值仅在使用jQuery的特定行中

问题描述：

我有一个表(id ="docsTable")，其行看起来与此类似:

I have a table (id="docsTable") whose rows look similar to this:

<tr bgcolor="#E7DDCC">
    <td align="center"><input type="checkbox" name="docsToAddToClass[]" value="35" /></td>
    <td>Document Title</td>
    <td>Document Description.</td>
</tr>

我需要遍历表，确定用户已经选中了哪些复选框，对于带有选中复选框的行，获取第一个值和接下来两个的文本.

I need to iterate through the table, determine which checkboxes the user has checked, and for the rows with a checked checkbox, grab the value for the first and the text for the next two.

我不需要构建集合:在每次迭代中，我想更改其他地方的某些元素. (对我而言)这不是困难的部分.它试图找出如何遍历表格并仅选中带有选中复选框的.

I don't need to build a collection: Within each iteration I want to change some elements elsewhere. That's not the hard part (for me). It's trying to figure out how to iterate through the table and select only the s with checked checkboxes.

答

<html>
  <head>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" ></script>
    <script type="text/javascript">
        $(function(){
            $('#btnTest').click(function(){
                $('#docsTable input[type="checkbox"]:checked').each(function(){
                    var $row = $(this).parents('tr'); 
                    alert($row.find('td:eq(0) input').val());
                    alert($row.find('td:eq(1)').html());
                    alert($row.find('td:eq(2)').html());
                });
            });
        });
    </script>
  </head>
  <body>
    <table id="docsTable">
        <tr bgcolor="#E7DDCC">
            <td align="center"><input type="checkbox" name="docsToAddToClass[]" value="35" /></td>
            <td>Document Title 1</td>
            <td>Document Description.</td>
        </tr>
        <tr bgcolor="#E7DDCC">
            <td align="center"><input type="checkbox" name="docsToAddToClass[]" value="36" /></td>
            <td>Document Title 2</td>
            <td>Document Description.</td>
        </tr>
        <tr bgcolor="#E7DDCC">
            <td align="center"><input type="checkbox" name="docsToAddToClass[]" value="37" /></td>
            <td>Document Title 3</td>
            <td>Document Description.</td>
        </tr>
    </table>
    <input type='button' id='btnTest' value='Get Rows' />
  </body>
</html>

获取< td>值仅在使用jQuery的特定行中

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