public bool UpdateTrainPlanAndPro(TrainPlan trainPlan,List<Pro> pros)

        {

            ISession ss = NHibernateHelper.FrameworkDataProvider.Instance.GetSession();

            ITransaction trans = null;

            using (trans = ss.BeginTransaction())

            {

                try

                {

                    ss.Update(trainPlan);

                    var proList = Session.CreateCriteria<Pro>().Add(Expression.Eq("TId", trainPlan.Id)).List<Pro>();foreach (var item in proList)

                    {

                        item.StudyHours = trainPlan.TrainHours;

                        item.WorkTypeId = trainPlan.WorkId;

                        ss.Update(item);

                    }
　　　　　　　　　　　　Session.Clear();　

                    trans.Commit();

                    return true;

                }

                catch (Exception e)

                {

                    trans.Rollback();

                    return false;

                }

                finally

                {

                    trans.Dispose();

                }

            }

        }