private void btnApply_Click(object sender, EventArgs e) { if (rbOne.Checked) { outboundDate = dtpOutbound.Value.Date; qOutbound = flight.GetFlightDetails(cbFrom.Text, cbTo.Text, cbCabin.Text, outboundDate); if (qOutbound.Count > 0) { if (qOutbound.Select(x => x.FlightNumber).Distinct().Count() > 1) { FlightDetails flight = new FlightDetails { From = cbFrom.Text, To = cbTo.Text, Date = qOutbound[0].Date, Time = qOutbound[0].Time, CabinPrice = qOutbound.Sum(x => x.CabinPrice), FlightNumber = string.Join(" - ", qOutbound.Select(x => x.FlightNumber).ToList()), NumberOfStops = qOutbound.Count - 1 }; qOutbound = new List <FlightDetails> { flight }; } } else { MessageBox.Show("No Flights to the destination found (pick either different route, date, or even tick 'One way')"); } q[0] = qOutbound; q[1] = null; DisplayOutbound(); } else { outboundDate = dtpOutbound.Value.Date; returnDate = dtpReturn.Value.Date; qOutbound = flight.GetFlightDetails(cbFrom.Text, cbTo.Text, cbCabin.Text, outboundDate); qReturn = flight.GetFlightDetails(cbTo.Text, cbFrom.Text, cbCabin.Text, returnDate); if (qOutbound.Count > 0) { if (qOutbound.Select(x => x.FlightNumber).Distinct().Count() > 1) { FlightDetails flight = new FlightDetails { From = cbFrom.Text, To = cbTo.Text, Date = qOutbound[0].Date, Time = qOutbound[0].Time, CabinPrice = qOutbound.Sum(x => x.CabinPrice), FlightNumber = string.Join(" - ", qOutbound.Select(x => x.FlightNumber).ToList()), NumberOfStops = qOutbound.Count - 1 }; qOutbound = new List <FlightDetails> { flight }; } } else { MessageBox.Show("No Flights to destination found"); } if (qReturn.Count > 0) { if (qReturn.Select(x => x.FlightNumber).Distinct().Count() > 1) { FlightDetails flight = new FlightDetails { From = cbTo.Text, To = cbFrom.Text, Date = qReturn[0].Date, Time = qReturn[0].Time, CabinPrice = qReturn.Sum(x => x.CabinPrice), FlightNumber = string.Join(" - ", qReturn.Select(x => x.FlightNumber).ToList()), NumberOfStops = qReturn.Count - 1 }; qReturn = new List <FlightDetails> { flight }; } } else { MessageBox.Show("No Flights to home found (pick either different route, date, or even tick 'One way')"); } q[0] = qOutbound; q[1] = qReturn; DisplayOutbound(); DisplayReturn(); } }