private void _timer_Elapsed(object sender)
{
string time = ConfigurationManager.AppSettings["ClearHistoryTime"];
int hour = Convert.ToInt32(time);
int now = DateTime.Now.Hour;
if (now >= hour)
{
TIcketDAOMSSQL t = new TIcketDAOMSSQL();
FlightDAOMSSQL f = new FlightDAOMSSQL();
t.MoveToTicketHistory();
f.MoveToFlightsHistory();
}
}