public bool UpdateOrder(List<object> insert, List<object> update)
        {
            ISession iSession = _factory.OpenSession();
            ITransaction IT = iSession.BeginTransaction();
            try
            {
                if (insert != null && insert.Count > 0)
                {
                    object o;
                    long l;
                    foreach (var item in insert)
                    {
                        o = iSession.Save(item);
                        if (o == null)
                        {
                            IT.Rollback();
                            return false;
                        }
                        else
                        {
                            l = long.Parse(o.ToString());
                            if (l <= 0)
                            {
                                IT.Rollback();
                                return false;
                            }
                        }
                    }
                }

                if (update != null && update.Count > 0)
                {
                    foreach (var item in update)
                    {
                        iSession.Update(item);
                    }
                }

                IT.Commit();
                return true;
            }
            catch (Exception e)
            {
                IT.Rollback();
                DalError(e);
                return false;
            }
            finally
            {
                iSession.Flush();
                iSession.Close();
            }
        }