扩展数据网格
我想扩展 ASP.NET DataGrid Web 控件以添加许多附加功能，但最重要的是，我想让网格主体可滚动。
我已经解决了 HTML，但覆盖控件的呈现令人困惑。 最终控制的基本结构应该如下所示：
<div id="grid1" class="grid">
<div class="grid-header">
<div class="grid-header-l"></div>
<div class="grid-header-c">
<div class="grid-header-wrapper">
<div class="wrapper">Grid Header</div>
</div>
</div>
<div class="grid-header-r"></div>
</div>
<div class="grid-body">
<div class="grid-column-headers">
<div class="grid-column-headers-l"></div>
<div class="grid-column-headers-c">
<div class="grid-column-headers-wrapper">
<table class="grid-column-header-table" cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<td>
<div class="grid-column-header-cell asc">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
<td>
<div class="grid-column-header-cell">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
<td class="last">
<div class="grid-column-header-cell">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="grid-column-headers-r"></div>
</div>
<div class="grid-body-content">
<div class="grid-body-content-t">
<div class="grid-body-content-t-l"></div>
<div class="grid-body-content-t-c"></div>
<div class="grid-body-content-t-r"></div>
</div>
<div class="grid-body-content-m">
<div class="grid-body-content-m-l"></div>
<div class="grid-body-content-m-c">
<div class="grid-body-content-wrapper">
<div class="scroll-wrapper">
<table class="grid-content-table" cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="grid-body-content-m-r"></div>
</div>
<div class="grid-body-content-b">
<div class="grid-body-content-b-l"></div>
<div class="grid-body-content-b-c"></div>
<div class="grid-body-content-b-r"></div>
</div>
</div>
</div>
有人知道最好的方法应该是什么吗？ 谁能指点我一些教程吗？ 我注意到作者在将渲染的 html 发送到响应流之前捕获了它并对其进行了更改。 然而我不喜欢使用这种方法。
I would like to extend the ASP.NET DataGrid web control to add lots of additional features but most important of all, I would like to make the body of the grid scrollable.
I have the HTML worked out but overriding the rendering of the control is confusing. The basic structure of final control should look like so:
<div id="grid1" class="grid">
<div class="grid-header">
<div class="grid-header-l"></div>
<div class="grid-header-c">
<div class="grid-header-wrapper">
<div class="wrapper">Grid Header</div>
</div>
</div>
<div class="grid-header-r"></div>
</div>
<div class="grid-body">
<div class="grid-column-headers">
<div class="grid-column-headers-l"></div>
<div class="grid-column-headers-c">
<div class="grid-column-headers-wrapper">
<table class="grid-column-header-table" cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<td>
<div class="grid-column-header-cell asc">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
<td>
<div class="grid-column-header-cell">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
<td class="last">
<div class="grid-column-header-cell">
<div class="grid-column-header-cell-wrapper">
<div class="grid-column-header-text" title="Column Header Name">Column Header Name</div>
<a href="javascript:;" class="grid-column-header-button" title="Hide/Show Columns"><span></span></a>
<div class="grid-column-header-divider"></div>
</div>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="grid-column-headers-r"></div>
</div>
<div class="grid-body-content">
<div class="grid-body-content-t">
<div class="grid-body-content-t-l"></div>
<div class="grid-body-content-t-c"></div>
<div class="grid-body-content-t-r"></div>
</div>
<div class="grid-body-content-m">
<div class="grid-body-content-m-l"></div>
<div class="grid-body-content-m-c">
<div class="grid-body-content-wrapper">
<div class="scroll-wrapper">
<table class="grid-content-table" cellpadding="0" cellspacing="0" border="0">
<tbody>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
<tr>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
<td>
<div class="grid-content-cell">Cell Text/Value</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="grid-body-content-m-r"></div>
</div>
<div class="grid-body-content-b">
<div class="grid-body-content-b-l"></div>
<div class="grid-body-content-b-c"></div>
<div class="grid-body-content-b-r"></div>
</div>
</div>
</div>
Anyone know what the best approach should be? Can anyone point me to some tutorial? I have noticed one where the author captured the rendered html before it is sent to the response stream and altered it. I do not like to use that approach however.
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评论（2）
您可以尝试这种方法。 对我来说效果很好。
You can try this approach. Works good for me.
因为我只想修改控件的输出，所以“扩展”控件实际上意味着我只需覆盖渲染。
我找到了有关控制适配器的文章，可以使用它来改变输出。 CodePlex 上存在名为“CSS 控制适配器'。 它对于 DataGrid 以外的更多控件都非常有帮助。
Because I only wanted to modify the output of the control, 'extending' the control actually meant that I only had to override the rendering.
I found articles on control adapters that one can use to alter the output. A project exists on CodePlex named 'CSS Control Adapters'. It has been very helpful on more controls than just the DataGrid.