几个repeater的foreach会互相影响么？

我写了三个repeater的foreach，但是只有第一个执行，剩下的为什么不执行？

不会影响，具体你下断点去调试下。

<div style="width:80%;margin-left:auto;margin-right:auto;">
<asp:Repeater ID="Repeater2" runat="server">
    <HeaderTemplate><!--头部模板,放表格开始及第一行标题-->
    <table class="ts" style="width:100%;"><!--插入表格时只需插入两行即可，显示数据时是根据数据库表循环显示的-->
        <tr>
            <th style="width:100%;text-align:left;">
                二、判断题（共10题，每题2分）</th></tr>
          <tr> </HeaderTemplate>   
    <ItemTemplate><!--项目模板，会进行循环显示，放置表格第二行-->
    <tr><td>
    <asp:Label ID="Label11" runat="server" Text='<%# Eval("col1") %>'></asp:Label>
    <%--<asp:Label ID="Label1" runat="server" Text='<%# Container.ItemIndex + 1% %> '></asp:Label>--%>
                                        <asp:Label ID="Label12" runat="server" Text='<%# Eval("col2") %>'></asp:Label>
                                        <asp:Label ID="Label13" runat="server" Text='<%# Eval("col3") %>' Visible="true"></asp:Label>
            <%--<td style="width:100%;text-align:left;">
                <%#Eval("col2") %> <!--HTMl中插入其他代码需要用<% %>括起来，Eval("数据库中的字段名")--></td>--%>
               </td> </tr>
      <tr>       <td style="width:100%;text-align:left"> 
          <asp:RadioButton ID="RadioButton11" runat="server" GroupName="1"  Text='<%#Eval("col4") %>' /> </td></tr>
        <tr>       <td style="width:100%;text-align:left;"> 
         <asp:RadioButton ID="RadioButton12" runat="server" GroupName="1" Text='<%#Eval("col5") %>' /></td></tr>
    </ItemTemplate>       
    <FooterTemplate><!--底部模板-->
    </table>        <!--表格结束部分-->
    </FooterTemplate>   
    </asp:Repeater>
</div>

    这是前台的代码，下面的是后台的代码

    int score = 0;
    //int singlemark = int.Parse(((Label)GridView1.Rows[0].FindControl("Label4")).Text);//取出单选题的每题分值
    foreach (RepeaterItem rs in Repeater1.Items)//对单选题每题进行判断用户选择答案
    {
        string ta = Request.QueryString["tabName"];
        string str = "";
        SqlConnection conn = new SqlConnection();
        conn.ConnectionString = "Data Source=localhost;Initial Catalog=zh;Integrated Security=True";
        // 打开连接
        if (conn.State == ConnectionState.Closed)
        {
            conn.Open();
        }
        if (((RadioButton)rs.FindControl("RadioButton1")).Checked)
        {
            str = "A";
            string aa = ((Label)rs.FindControl("Label1")).Text.Trim();
            string mysql1 = "update "+ ta +" set col8='A' where col1="+aa;
            SqlCommand cmd1 = new SqlCommand(mysql1, conn);
            cmd1.ExecuteNonQuery();
        }
        else if (((RadioButton)rs.FindControl("RadioButton2")).Checked)
        {
            str = "B";
            string aa = ((Label)rs.FindControl("Label1")).Text.Trim();
            string mysql1 = "update " + ta + " set col8='B' where col1=" + aa;
            SqlCommand cmd1 = new SqlCommand(mysql1, conn);
            cmd1.ExecuteNonQuery();
        }
        else if (((RadioButton)rs.FindControl("RadioButton3")).Checked)
        {
            str = "C";
            string aa = ((Label)rs.FindControl("Label1")).Text.Trim();
            string mysql1 = "update " + ta + " set col8='C' where col1=" + aa;
            SqlCommand cmd1 = new SqlCommand(mysql1, conn);
            cmd1.ExecuteNonQuery();
        }
        else if (((RadioButton)rs.FindControl("RadioButton4")).Checked)
        {
            str = "D";
            string aa = ((Label)rs.FindControl("Label1")).Text.Trim();
            string mysql1 = "update " + ta + " set col8='D' where col1=" + aa;
            SqlCommand cmd1 = new SqlCommand(mysql1, conn);
            cmd1.ExecuteNonQuery();
        }
        if (((Label)rs.FindControl("Label3")).Text.Trim() == str)//将用户选择结果和答案进行比较
        {
            score = score + 2;
        }

    }
    foreach (RepeaterItem dr in Repeater2.Items)//对判断题每题进行判断用户选择答案
    {
        string str = "";
        if (((RadioButton)dr.FindControl("RadioButton11")).Checked)
        {
            str = "A";
        }
        else if (((RadioButton)dr.FindControl("RadioButton12")).Checked)
        {
            str = "B";
        }
        if (((Label)dr.FindControl("Label13")).Text.Trim() == str)//将用户选择结果和答案进行比较
        {
            score = score + 2;
        }
        Response.Write(score);
    }