public void Insert() { Console.WriteLine("Enter Ship ID :"); insertobj.shipId = int.Parse(Console.ReadLine()); Console.WriteLine("Enter Ship Oil Amount :"); insertobj.shipoilamount = float.Parse(Console.ReadLine()); SqlCommand insertCommand = new SqlCommand("insert into ship values(@Id,@oil)"); SqlParameter idparam = new SqlParameter("@Id", SqlDbType.Int); idparam.Value = insertobj.shipId; SqlParameter oilparam = new SqlParameter("@oil", SqlDbType.Float); oilparam.Value = insertobj.shipoilamount; insertCommand.Parameters.Add(idparam); insertCommand.Parameters.Add(oilparam); _dp.post(insertCommand); }