C# Fluent NHibernate双向多对一IConvertible异常

我正在尝试映射同一类/表的父级/子级之间的双指令多对一关系。 以下是映射：

References(x => x.Parent).Column("ParentID");
HasMany(x => x.Children).KeyColumn("ParentID").Inverse().Cascade.All();

当我试图保存一个包含子项列表的父项时，我得到以下错误

System.InvalidCastException:对象必须实现IConvertible

at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
at System.Convert.ChangeType(Object value, Type conversionType)
at Pervasive.Data.SqlClient.PsqlParameter.a(Type A_0)
at Pervasive.Data.SqlClient.q.a(PsqlParameter A_0, k A_1, a3 A_2, Int32 A_3)
at Pervasive.Data.SqlClient.q..ctor(PsqlParameter A_0, k A_1, Int32 A_2, Int32 A_3, Int32 A_4)
at Pervasive.Data.SqlClient.PsqlParameterCollection.a(k A_0, Int32 A_1, Int32 A_2, Int32 A_3)
at Pervasive.Data.SqlClient.PsqlCommand.a(Boolean A_0, CommandBehavior A_1, Boolean A_2)
at Pervasive.Data.SqlClient.PsqlCommand.ExecuteNonQuery()
at NHibernate.AdoNet.AbstractBatcher.ExecuteNonQuery(IDbCommand cmd)
at NHibernate.AdoNet.NonBatchingBatcher.AddToBatch(IExpectation expectation)
at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql, Object obj, ISessionImplementor session)
at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Object obj, ISessionImplementor session)
at NHibernate.Action.EntityInsertAction.Execute()
at NHibernate.Engine.ActionQueue.Execute(IExecutable executable)
at NHibernate.Engine.ActionQueue.ExecuteActions(IList list)
at NHibernate.Engine.ActionQueue.ExecuteActions()
at NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions(IEventSource session)
at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)
at NHibernate.Impl.SessionImpl.Flush()
at NHibernate.Transaction.AdoTransaction.Commit()

如果父级/子级是两个不同的类/表，则上述映射有效。 我还尝试通过删除以下内容使映射单向：

References(x => x.Parent).Column("ParentID");

然后我可以保存，但如果我获取子对象，则父对象为空

有什么办法解决这个问题吗

---

Fit.Server.Persistence.Test.Repositories.SagopGiven.SagOpgavePersistenceTest.Opgiven_gets_引用引发异常：

System.InvalidCastException:对象必须实现IConvertible

at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
at System.Convert.ChangeType(Object value, Type conversionType)
at Pervasive.Data.SqlClient.PsqlParameter.a(Type A_0)
at Pervasive.Data.SqlClient.q.a(PsqlParameter A_0, k A_1, a3 A_2, Int32 A_3)
at Pervasive.Data.SqlClient.q..ctor(PsqlParameter A_0, k A_1, Int32 A_2, Int32 A_3, Int32 A_4)
at Pervasive.Data.SqlClient.PsqlParameterCollection.a(k A_0, Int32 A_1, Int32 A_2, Int32 A_3)
at Pervasive.Data.SqlClient.PsqlCommand.a(Boolean A_0, CommandBehavior A_1, Boolean A_2)
at Pervasive.Data.SqlClient.PsqlCommand.ExecuteNonQuery()
at NHibernate.AdoNet.AbstractBatcher.ExecuteNonQuery(IDbCommand cmd)
at NHibernate.AdoNet.NonBatchingBatcher.AddToBatch(IExpectation expectation)
at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql, Object obj, ISessionImplementor session)
at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Object obj, ISessionImplementor session)
at NHibernate.Action.EntityInsertAction.Execute()
at NHibernate.Engine.ActionQueue.Execute(IExecutable executable)
at NHibernate.Engine.ActionQueue.ExecuteActions(IList list)
at NHibernate.Engine.ActionQueue.ExecuteActions()
at NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions(IEventSource session)
at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)
at NHibernate.Impl.SessionImpl.Flush()
at NHibernate.Transaction.AdoTransaction.Commit()

找到了迄今为止行之有效的解决方案

References(x => x.Parent).Column("ParentID").Not.Insert();
HasMany(x => x.Children).KeyColumn("ParentID").Cascade.All();

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我试着理解代码和错误。基于此，我可以看到您传递了一些无效数据类型或与列数据类型不匹配的数据。保存前请检查所有列值。

是否有该异常的堆栈跟踪？当您发布该堆栈跟踪时，系统会明确询问您是否要发布问题的答案，并告知您如果要提供其他信息，则应更新问题。这些信息是用来阅读的。所以：请用堆栈跟踪更新您的问题并删除您的非答案。类的id映射是什么？