public ActionResult DeleteModel(int id)
        {
            var success = false;
            var message = string.Empty;

            try
            {
                var model = repo.GetGeneratedModel().FirstOrDefault(x => x.ID == id);
                repo.DeleteGeneratedModel(model);
                repo.SaveChanges();
            }
            catch (Exception ex)
            {
                message = ex.Message;
            }
            return(Json(new { success = true, message = message, id = id }));
        }