NHibernate异常枚举器已修改

Question

我有一个带有ThreadStaticSessionContext的多线程NHibernate应用程序。我将每个线程都绑定一个新会话。在退出线程之前，我先提交事务，然后得到

enumerator was modified

  at NHibernate.Util.SequencedHashMap.OrderedEnumerator.MoveNext()  
  at NHibernate.Util.IdentityMap.get_EntryList()  
  at NHibernate.Util.IdentityMap.ConcurrentEntries(IDictionary map)  
  at NHibernate.Event.Default.AbstractFlushingEventListener.PrepareEntityFlushes(IEventSource session)  
  at NHibernate.Event.Default.AbstractFlushingEventListener.FlushEverythingToExecutions(FlushEvent event)  
  at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)  
  at NHibernate.Impl.SessionImpl.Flush()  
  at NHibernate.Transaction.AdoTransaction.Commit()  
  at ...

我没有头绪...

Answer 1

当您在枚举集合时添加/删除集合时（例如在语句中foreach），通常会引发此异常。