private void FillStatistic() { { List <string> statistics = bllMember.GetStatistic(member); labelControlAttendedAppointment.Text = statistics[0]; labelControlMedicineCount.Text = statistics[1]; labelControlCancelledAppointment.Text = statistics[2]; labelControlNotAttendedAppointment.Text = statistics[3]; if (statistics[4] == "0") { labelControlDoctorAgeRange.Text = "N/A"; } else { labelControlDoctorAgeRange.Text = statistics[4]; } if (statistics[5] == "0") { labelControlOldestDoctorAge.Text = "N/A"; labelControlYoungestDoctorAge.Text = "N/A"; } else { labelControlOldestDoctorAge.Text = statistics[5]; labelControlYoungestDoctorAge.Text = statistics[6]; } } }