/// <summary> /// 插入Grade /// </summary> /// <param name="grade">Grade</param> public int InsertGrade(Grade grade) { int _id = -1; try { //_daoManager.BeginTransaction(); _id = _gradeDao.InsertGrade(grade); //_daoManager.CommitTransaction(); } catch (Exception ex) { //_daoManager.RollBackTransaction(); throw ex; } return(_id); }