public void OnPost()
        {
            transaction     = new TransactionScope();
            allWorkoutsRepo = new SqlAllWorkoutsRepository(connectionString);
            transaction.Dispose();
            Filter = Request.Form["Filter"];

            Workouts = allWorkoutsRepo.RetrieveAllWorkouts(Filter);
        }
        public void OnGet()
        {
            transaction     = new TransactionScope();
            allWorkoutsRepo = new SqlAllWorkoutsRepository(connectionString);
            transaction.Dispose();


            Workouts = allWorkoutsRepo.RetrieveAllWorkouts(Filter);
        }