public DateTimeHall(DateTime DT, int HallInput, string MovieName) { string datetime = DT.ToString("yyyy") + "-" + DT.ToString("MM") + "-" + DT.ToString("dd") + " " + DT.ToString("HH") + ":" + DT.ToString("mm"); DateTime dt = DateTime.ParseExact(datetime, "yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture); AD.CreateDateTime(dt, AD.GetMovieID(MovieName), HallInput); int dateID = AD.GetDateID(dt, HallInput); TheatherHalls hall = new TheatherHalls(HallInput, dateID); }