private void TogglePlantingDay()
        {
            //
            // instantiate a responseBusiness class and pass the repository into it
            //
            ResponseBusiness responseBusiness = new ResponseBusiness(responseRepository);
            Response         response;

            using (responseBusiness)
            {
                //TODO: View: update the planting day according to which day was clicked
                //responseBusiness.TogglePlantingDay(event handler?);
                responseBusiness.TogglePlantingDay(1);
                responseBusiness.Save();
            }

            //TODO: View: display the updated planting days dynamically
        }