asp.net 中RadioButtonList控件有关问题，怎么判断是哪条记录的

asp.net 中RadioButtonList控件问题，如何判断是哪条记录的？
正在做一个调查投票的小功能，碰到如下问题当提交时，需判断是否都给了分数，如果没给分，给出提示“1.1未打分”这个投票问题我用的是repeater控件绑定的。如下：

  <table class="table1">
                                    <asp:Repeater runat="server" ID="rptItemlist">
                                        <ItemTemplate>
                                            <tr>
                                                <td class="td1">
                                                    <span style="color: #FF001E">*</span>
                                                        <%#Eval("sn")%>
                                                </td>
                                                <td class="td2">
                                                    <span>
                                                        <%#Eval("ItemTitle")%></span>
                                                </td>
                                                <td class="td3"> 
 
                                                    <asp:RadioButtonList ID="RadioButtonList1" RepeatDirection="Horizontal" runat="server" CssClass="radio">
                                                        <asp:ListItem Value="5">5</asp:ListItem>
                                                        <asp:ListItem Value="4">4</asp:ListItem>
                                                        <asp:ListItem Value="3">3</asp:ListItem>
                                                        <asp:ListItem Value="2">2</asp:ListItem>
                                                        <asp:ListItem Value="1">1</asp:ListItem>
                                                    </asp:RadioButtonList>
                                                </td>
                                            </tr>
                                        </ItemTemplate>
                                    </asp:Repeater>
                                </table> 
 

我想请教的是，在客户端提交时，如何判断是否每个都给了分数？并做分数记录呢 ASP.NET 控件 javascript
[解决办法]
jQuery("table.table1>tr").each(function(i,item){
   if(jQuery(item).find("input[class='radio']:checked").length<=0){
       alert(jQuery(item).find("td").eq(0).html()+"没有勾选");
       return false;
   }
});

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