更新部分字段 NHibernate

 public static bool UpdateIsBrowse(decimal id)
        {
            bool IsSuccess = false;

            ITransaction trans = session.BeginTransaction();
            try
            {
                //2 修改记录
                string sql = " update jkpt_oaxt_weatherforecast set Isbrowse=1 where Weatherforecastid=" + id;           

                ISQLQuery Query = session.CreateSQLQuery(sql).AddEntity(typeof(JkptOaxtWeatherforecast));
                Query.ExecuteUpdate();             
                session.Flush();
                trans.Commit();
                //写日志
                Helpers.SaveInfo("Update weatherforecast 's isbrowse Success!");
                IsSuccess = true;
            }
            catch (Exception ex)
            {
                IsSuccess = false;
                trans.Rollback();
                //写日志
                Helpers.SaveInfo("更新是否浏览失败！错误提示如下：" + ex.Message);
            }
            finally
            {
                if (session != null)
                {
                    session.Clear();
                }
            }
            return IsSuccess;
        }