复选框传值（接上个项目）

前台代码

<%@ Page Title="" Language="C#" MasterPageFile="~/Teacher.Master" AutoEventWireup="true" CodeBehind="teacher2.aspx.cs" Inherits="周五重点.teacher2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
  <div>
        <p>姓名：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></p>
        <p>密码：<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox></p>
        <p>电话：<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox></p>

        <p>住址：<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label></p>
        <p>生日：<asp:Label ID="Label2" runat="server" Text="Label"></asp:Label></p>
        <p>爱好：</p>
        <p>
            <asp:Panel ID="Panel1" runat="server">
                 <asp:CheckBox ID="CheckBox1" runat="server" Text="唱歌" />
                <asp:CheckBox ID="CheckBox2" runat="server" Text="跳舞" />
                <asp:CheckBox ID="CheckBox3" runat="server" Text="学习" />
                <asp:CheckBox ID="CheckBox4" runat="server" Text="羽毛球"/>
                <asp:CheckBox ID="CheckBox5" runat="server" Text="篮球" />
            </asp:Panel>
        </p>
        

    </div>
</asp:Content>

后台代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace 周五重点
{
    public partial class teacher2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
           
            if (Session["uid"]!=null)
            {
                int id = int.Parse(Session["uid"].ToString());
                DataTable dt = BLL.Manager.userGetId(id);
                this.TextBox1.Text = dt.Rows[0]["UserName"].ToString();
                this.TextBox2.Text = dt.Rows[0]["UserPwd"].ToString();
                this.TextBox3.Text = dt.Rows[0]["UserTel"].ToString();
                this.Label1.Text = dt.Rows[0]["UserAddr"].ToString();
                this.Label2.Text = ((DateTime)dt.Rows[0]["UserBirth"]).ToLongDateString();
                var hobby = dt.Rows[0]["UserHobby"].ToString().Split('，');
                foreach (var item in hobby)
                {
                    foreach (Control cl in Panel1.Controls)
                    {
                        if (cl is CheckBox)
                        {
                            CheckBox ck=(CheckBox)cl;
                            if (item==ck.Text)
                            {
                                ck.Checked = true;
                            }
                        }
                    }
                }
            }

        }
    }
}