效果图：
html代码：
<ext:FormLayout ID="FormLayout1" runat="server" LabelWidth="40">
<ext:Anchor>
<ext:CheckboxColumn ID="CheckboxColumn1" runat="server" ColumnWidth="0.25" >
<Items>
<ext:Panel runat="server">
<Body>
<table>
<tr>
<td>
<ext:Checkbox ID="Checkbox27" runat="server" BoxLabel="客户帐号" Checked="true" />
</td>
<td>
<ext:TextField ID="TextField2" runat="server"
FieldLabel="客户帐号" Width="125" TabIndex="10" >
</ext:TextField>
</td>
</tr>
<tr>
<td>
<ext:Checkbox ID="Checkbox28" runat="server" BoxLabel="客户姓名" Checked="true" />
</td>
<td>
<ext:TextField ID="TextField1" runat="server"
FieldLabel="客户姓名" Width="125" TabIndex="11">
</ext:TextField>
</td>
</tr>
<tr>
<td>
<ext:Checkbox ID="Checkbox1" runat="server" BoxLabel="地址"/>
</td>
<td>
<ext:TextField ID="TextField3" runat="server"
FieldLabel="地址" Width="125" TabIndex="11">
</ext:TextField>
</td>
</tr>
<tr>
<td>
<ext:Checkbox ID="Checkbox2" runat="server" BoxLabel="电话" />
</td>
<td>
<ext:TextField ID="TextField4" runat="server"
FieldLabel="电话" Width="125" TabIndex="11">
</ext:TextField>
</td>
</tr>
</table>
</Body>
</ext:Panel>
</Items>
</ext:CheckboxColumn>
</ext:Anchor>
</ext:FormLayout>