调试易

在首页piclist.aspx我是这样做的:
<asp:DataList ID="dlContent" runat="server" Width="554px">
   <ItemTemplate>
    <table cellpadding="0" cellspacing="0">
     <tr>
      <td style="width: 554px; text-align: left; height: 26px;">
       <img id='img1' src='StreamImg.aspx?id= <%# DataBinder.Eval(Container.DataItem,"ImageID") %>'>
        </a>
          </a>
            </td>
             </tr>
               </table>
                 </ItemTemplate>
</asp:DataList>后台是这个piclist.aspx.cspublic partial class Test_Test : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            //连接数据库 
            string ConnStr = "Data Source=Localhost; Initial Catalog=EX_NEW; User ID=sa;Pwd=photosystem;";
            SqlConnection sqlcon = new SqlConnection(ConnStr);
            sqlcon.Open();
            string sqlstr = "select ImageID from ImageStore";
            SqlDataAdapter MyAdapter = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet ds = new DataSet();
            MyAdapter.Fill(ds, "ImageData");
            this.dlContent.DataSource = ds;
            this.dlContent.DataBind();
            sqlcon.Close();
        }
    }
}然后通过StreamImg.aspx.cs绑定数据库里的["ImageID"]public partial class StreamImg : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //string type = Request.QueryString["pt"];
        int id = Convert.ToInt32(Request.QueryString["ImageID"]);
        Showpic(id);
    }    private void Show(int id)
    {
        throw new NotImplementedException();
    }
    
    private void Showpic(int id)
    {
        //连接数据库 
        string ConnStr = "Data Source=Localhost; Initial Catalog=EX_NEW; User ID=sa;Pwd=photosystem;";
        string strSql = "select * from ImageStore where ImageID='" + id + "'";
        SqlConnection conn = new SqlConnection(ConnStr);
        conn.Open();        SqlCommand cmd = new SqlCommand(strSql, conn);
        SqlDataReader reader = cmd.ExecuteReader();
        while (reader.Read())
        {
            Response.ContentType = "application/octet-stream";
            Response.BinaryWrite((Byte[])reader["ImageData"]);
            Response.Write("successful");
        }
        reader.Close();
        conn.Close();
        Response.End();
    }
}      但很不幸,整个代码运行起来,看到的是"红叉",不知道是我那里写错了,寄望大侠们帮帮我...