C# ASP.NET如何更改按钮单击时表格行的背景色+；行条目？

我有一个表，其中有一行在用户单击按钮后填充了值。我想根据填充到行中的值将行的背景色更改为不同的颜色

<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Search" />
<tr>
    <td runat="server" id ="td1" class="auto-style1"></td>
    <td runat="server" id ="td2" class="auto-style1"></td>
    <td runat="server" id ="td3" class="auto-style1"></td>
    <td runat="server" id ="td4" class="auto-style1"></td>
</tr>

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基本上，我想根据toDisp[1]的值设置表行的背景色。我该怎么做呢？谢谢。

如果只有一排的话

只需使用runat属性为其设置一个ID

<tr id="test" runat="server">
    <td runat="server" id ="td1" class="auto-style1"></td>
    <td runat="server" id ="td2" class="auto-style1"></td>
    <td runat="server" id ="td3" class="auto-style1"></td>
    <td runat="server" id ="td4" class="auto-style1"></td>
</tr>

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是否存在表示颜色的常量？

<tr id="test" runat="server">
    <td runat="server" id ="td1" class="auto-style1"></td>
    <td runat="server" id ="td2" class="auto-style1"></td>
    <td runat="server" id ="td3" class="auto-style1"></td>
    <td runat="server" id ="td4" class="auto-style1"></td>
</tr>

test.BgColor = "SomeColor";