javascript - 未捕获的类型错误 : Cannot read property 'className' of undefined dataTable

Question

我有 table :

HTML

<table id="mydata">
    <thead>
        <tr>
            <th>Data 1</th>
            <th>Data 2</th>
            <th>Data 3</th>
            <th>Data 4</th>
        </tr>
    </thead>
    <tbody>
        <tr class="main">
            <td class="data_1">A</td>
            <td class="data_2">B</td>
            <td class="data_3">C</td>
            <td class="data_4">D</td>
        </tr>
   </tbody>
</table>

当我使用 dataTable 对 jquery 进行排序时:

JavaScript

jQuery('#mydata').dataTable({
    "sDom": " ",
    "bPaginate": false,
    "bInfo": false,
    'bFilter':false,                        
    "aoColumns": [
        null,               
        null,
        null,
        null
    ]
});

成功了。

但是，当我为 ma​​in 添加子行时:

HTML

<table id="mydata">
    <thead>
        <tr>
            <th>Data 1</th>
            <th>Data 2</th>
            <th>Data 3</th>
            <th>Data 4</th>
        </tr>
    </thead>
    <tbody>
        <tr class="main">
            <td class="data_1">A</td>
            <td class="data_2">B</td>
            <td class="data_3">C</td>
            <td class="data_4">D</td>
        </tr>

        <tr class="detail-header">
            <td><strong>A1</strong></td>
            <td><strong>B1</strong></td>
            <td><strong>C1</strong></td>
            <td><strong>D1</strong></td>
        </tr>
        <tr class="detail">
            <td><strong>A2</strong></td>
            <td><strong>B2</strong></td>
            <td><strong>C2</strong></td>
            <td><strong>D2</strong></td>
        </tr>
        <tr class="control">
            <td colspan="2"><a href="#">Show details</a></td>
            <td colspan="2"><a href="#">Hide details</a></td>
        </tr>
    </tbody>
</table>

在该 html 中:detail-header、detail 和 control 是 ma​​in 的子项，它们显示点击显示详细信息，排序时应该忽略它，但我似乎他们也按数据表排序，所以我收到错误:

Uncaught TypeError: Cannot read property 'className' of undefined

Answer 1

dataTables 做 not accept colspans in <tbody> .将最后一行(带链接的行)放在 <tfoot> 中相反:

<tfoot>
    <tr class="control">
        <td colspan="2"><a href="#">Show details</a></td>
        <td colspan="2"><a href="#">Hide details</a></td>
    </tr>
</tfoot>  

演示 -> http://jsfiddle.net/71zcn578/