private void btnSubmitMakeBooking_Click(object sender, EventArgs e) { Booking booking = new Booking(); booking.Dentist = txtDentist.Text; booking.AppointmentDate = txtNotesMakeBooking.Text; booking.ExaminationType = txtExaminationType.Text; booking.Additionalnotes = txtNotesMakeBooking.Text; Boolean answer = dbConn.InsertNewBookingToDB(booking); if (answer == true) { MessageBox.Show("New booking is inserted."); cboxAppointmentDate.Items.Clear(); txtExaminationType.ResetText(); txtDentist.ResetText(); txtNotesMakeBooking.ResetText(); } else { MessageBox.Show("Invalid input."); } }