protected void Button1_Click(object sender, EventArgs e)
        {
            //t_Orders_100 aa = new t_Orders_100();

            AccountDataContext accountDB = new AccountDataContext();

            t_Account_100 _t_Account_100 = new t_Account_100
            {
                UserID  = 789789,
                Point   = 10,
                svPoint = 10,
                Score   = 20
            };

            accountDB.t_Account_100.InsertOnSubmit(_t_Account_100);
            accountDB.SubmitChanges();
        }
        protected void Button2_Click(object sender, EventArgs e)
        {
            AccountDataContext accountDB = new AccountDataContext();
            var result = from o in accountDB.t_Orders_100
                         select o;

            //group o by o.roomid;
            //select new
            //{
            //    newOrder.Key,
            //    MostExpensiveProducts = from o2 in newOrder
            //                            where o2.payAmount == newOrder.Max(o3 => o3.payAmount)
            //                            select o2
            //};

            //List<t_Orders_100> list = (List<t_Orders_100>)result;

            foreach (t_Orders_100 v in result)
            {
                string sss = v.payAmount.ToString();
            }
        }