求助 ： 怎么在vs2005里调用储存过程啊

<%@Page Language="C#"%>
<%@ Import Namespace="System.Data" %>
<%@Import Namespace="System.Data.SqlClient"%>
<script language="C#" runat="server">
protected void Page_Load(object sender,EventArgs e)
{
    SqlConnection Conn=new SqlConnection(ConfigurationSettings.AppSettings["ConnString"]);
    try
    {
        Conn.Open();
        SqlCommand Cmd=Conn.CreateCommand();
         = CommandType.StoredProcedure;

         = "get_user_name";
        Cmd.Parameters.Add("@user_id", SqlDbType.Int);
        Cmd.Parameters["@user_id"].Value = Session["userid"];

        string strDeposit=Cmd.ExecuteScalar().ToString();
        Response.Write("&res=1&Deposit=" + strDeposit);    
    }
    catch (Exception ep)
    {
        Response.Write("&res=-1&ErrMsg=" + ep.Message);    
    }
    finally
    {
        Conn.Close();
    }
}
</script>
很典型的一个实例

指明调用类型为存储构成 如果存储过程有参数那么传递参数 调用存储过程