table使用runat=server后CSS丢失的问题

Question

一个table，列有CSS，本来是好的。
使用了runat="server"运行后，CSS就不行了，查看源文件发现<col class="col1" />这整段都没有了，这是怎么回事？         <table id="table1" class="tablestyle" runat="server" visible="false">
                <col class="col1" />
                <col class="col2" />
                <col class="col1" />
                <col class="col2" />
                <col class="col1" />
                <col class="col2" />
                     <tr>
                    <td>
                    </td>
                    <td>
                    </td>
                    <td>
                    </td>
                    <td>
                       </td>
                    <td>
                  </td>
                    <td>
                    </td>
                </tr>
            </table>

Answer 1

按我的经验，服务器控件只能用用repeat和简单的一些控件
其他见鬼的东西，微软都会重写id的，很麻烦

Answer 2

那就不要给table加runat
如果想要隐藏等可以在外面再加panel

Answer 3

加入了Ruant=server之后页面就会把他当做服务器控件来进行Render,自然就有了自己的规则.然后就会有东西不见了

Answer 4

runat="server" 跟样式没关系吧，要不就是你后台改样式了，要不就是覆盖了之类的吧。。

Answer 5

有关系的,微软的RenderControl机制会乱来的。
比如lz的Table加了Runat,最后呈现出来的结果是<div>
        <table class="tablestyle" id="table1">
<tbody><tr>
<td>
                </td>
<td>
                </td>
<td>
                </td>
<td>
                </td>
<td>
                </td>
<td>
                </td>
</tr>
</tbody></table>    </div>如果没有加，则是<table class="tablestyle" id="table1">
            <colgroup><col class="col1">
            <col class="col2">
            <col class="col1">
            <col class="col2">
            <col class="col1">
            <col class="col2">
            </colgroup><tbody><tr>
                <td>
                </td>
                <td>
                </td>
                <td>
                </td>
                <td>
                </td>
                <td>
                </td>
                <td>
                </td>
            </tr>
        </tbody></table>

Answer 6

MSDN的原话就是
From MSDN "A complex table model is not supported. You cannot have an HtmlTable control with nested caption, col, colgroup, tbody, thead, or tfoot elements."