private void btnSubmit_Click(object sender, EventArgs e)
 {
     if (isValidData())
     {
         if (txtSymptoms.TextLength < 20)
         {
             MessageBox.Show("Symptoms description should be more than 20 characters");
             return;
         }
         newAppt  = new Appointment();
         newVisit = new Visit();
         this.PutVisitData(newVisit);
         this.PutApptData(newAppt);
         try
         {
             //Inserts the Visit into the table and stores VisitID
             newVisit.VisitID = visitsController.AddVisit(newVisit);
             AppointmentController.appointmentCheckedIn(newAppt);
             MessageBox.Show("The visit was successfully added.");
             this.Close();
         }
         catch (Exception ex)
         {
             MessageBox.Show(ex.Message, ex.GetType().ToString());
         }
     }
 }