public IEnumerable <ScanLog> GetAllScansLog()
        {
            Scan   scan          = null;
            string selectCommand = @" SELECT * FROM ScanLog ";

            using (SqlCeConnection connect = new SqlCeConnection(Datasource))
            {
                connect.Open();
                using (SqlCeCommand command = new SqlCeCommand(selectCommand, connect))
                {
                    using (SqlCeDataReader reader = command.ExecuteReader())
                    {
                        if (reader != null)
                        {
                            while (reader.Read())
                            {
                                yield return(new ScanLog((int)reader.GetInt32(reader.GetOrdinal("artcode")),
                                                         (int)reader.GetInt32(reader.GetOrdinal("id_gamma")),
                                                         (int)reader.GetInt32(reader.GetOrdinal("Qty")),
                                                         (string)reader.GetString(reader.GetOrdinal("Dt")),
                                                         (string)reader.GetString(reader.GetOrdinal("Barcode")),
                                                         (AType)(int)reader.GetSqlInt32(reader.GetOrdinal("ActionType"))));
                            }
                        }
                    }
                }
            }
        }