public ActionResult TakeSurvey(SurveyFormModel survey)
 {
     if (!ModelState.IsValid)
     {
         List <ParkModel> parks = parkDAL.GetAllParks();
         survey.AvailableParks = parks;
         return(View("TakeSurvey", survey));
     }
     surveyDAL.SaveSurveyForm(survey);
     return(RedirectToAction("Results"));
 }