public List<Items> ReadList(string sortmode, string filter)
        {
            List<Items> tmp = new List<Items>();
            try
            {
                OrderSystemEntities database = new OrderSystemEntities();

                if (filter == "")
                {
                    tmp = database.Items.Where<Items>(rec => rec.Quantity > 0).ToList<Items>();
                }
                else
                    switch (sortmode)
                    {
                        case "name":
                            {
                                tmp = database.Items.Where<Items>(rec => rec.ItemName.ToLower().Contains(filter.ToLower()) && rec.Quantity > 0).ToList<Items>();
                                break;
                            }
                        case "description":
                            {
                                tmp = database.Items.Where<Items>(rec => rec.ItemDescriprion.ToLower().Contains(filter.ToLower()) && rec.Quantity > 0).ToList<Items>();
                                break;
                            }
                    }
                database.Dispose();
            }
            catch (Exception ex)
            {
                Session["err"] = ex.Message.ToString();
            }
            return tmp;
        }
        public void OutRecord(ItemsOrder tmp)
        {
            try
            {

                OrderSystemEntities database = new OrderSystemEntities();
                database.ItemsOrder.AddObject(tmp);
                int t = database.SaveChanges();
                if (t <= 0)
                {
                    //                    ErroredSoft();
                }
                database.Dispose();
            }
            catch (Exception ex)
            {
                Session["err"] = ex.Message.ToString();

                //                Errored();
            }
        }