public JsonResult GetCategoriesByGeneralCategory(int id)
        {
            int generalCateogryId = id;
            var categories        = _Manager
                                    .GetCategoriesByGeneralCategory(generalCateogryId)
                                    .Select(c => new { Id = c.Id, Name = c.Name });

            return(Json(categories, JsonRequestBehavior.AllowGet));
        }