public JsonResult AddAreaOfTraining(AreaOfTraining entity)
        {
            entity.Id = Guid.NewGuid();
            var data = BaseEntityManager.AddEntity(entity);

            return(Json(data, JsonRequestBehavior.AllowGet));
        }
        public JsonResult ModifyAreaOfTraining(AreaOfTraining entity)
        {
            var data = BaseEntityManager.ModifyEntity(entity);

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