public ActionResult AddExerciseToWorkout(int id)
{
var userId = Guid.Parse(User.Identity.GetUserId());
var serv = new ExerciseService(userId);
List <Exercise> exercises = serv.GetExerciseNameList().ToList();
var query = from c in exercises
select new SelectListItem()
{
Value = c.ExerciseId.ToString(),
Text = c.ExerciseName
};
ViewBag.ExerciseId = query;
return(View());
}