/// <summary>
/// returns tickets of a significant airline
/// </summary>
/// <param name="airline"></param>
/// <returns></returns>
public List <Ticket> AirlineTickets(Airline airline)
{
List <Ticket> airlineTickets = new List <Ticket>();
List <Ticket> allTickets = DB.Tickets;
foreach (Ticket item in allTickets)
{
if (item.Flight.AirLine == airline)
{
airlineTickets.Add(item);
}
}
if (airlineTickets.Count == 0)
{
return(null);
}
else
{
return(airlineTickets);
}
}
public static void DeleteAirline(Airline airline)
{
Airlines.Remove(airline);
}
public static void AddAirline(Airline airline)
{
Airlines.Add(airline);
}