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尝试更新数据库中的对象时出现以下错误。有谁知道可能会发生什么?我检查了我所有的数据类型,它们对应于db中的内容。感谢您的任何想法 -xxx的实例的标识符从y更改为z
NHibernate.HibernateException was unhandled by user code
Message="identifier of an instance of DataTransfer.status was altered from 3 to 4"
Source="NHibernate"
StackTrace:
at NHibernate.Event.Default.DefaultFlushEntityEventListener.CheckId(Object obj, IEntityPersister persister, Object id, EntityMode entityMode)
at NHibernate.Event.Default.DefaultFlushEntityEventListener.GetValues(Object entity, EntityEntry entry, EntityMode entityMode, Boolean mightBeDirty, ISessionImplementor session)
at NHibernate.Event.Default.DefaultFlushEntityEventListener.OnFlushEntity(FlushEntityEvent event)
at NHibernate.Event.Default.AbstractFlushingEventListener.FlushEntities(FlushEvent event)
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 DataAccessLayer.NHibernateDataProvider.UpdateItem_temp(items_temp item_temp) in C:\Documents and Settings\Carl.PAMB\My Documents\Visual Studio 2008\Projects\InventoryDataClean\DataAccessLayer\NHibernateDataProvider.cs:line 226
at InventoryDataClean.Controllers.ImportController.Edit(Int32 id, FormCollection formValues) in C:\Documents and Settings\Carl.PAMB\My Documents\Visual Studio 2008\Projects\InventoryDataClean\InventoryDataClean\Controllers\ImportController.cs:line 101
at lambda_method(ExecutionScope , ControllerBase , Object[])
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClassa.<InvokeActionMethodWithFilters>b__7()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
InnerException:
从我的log4net的日志 -
13:37:17 [9] DEBUG NHibernate.Event.Default.DefaultSaveOrUpdateEventListener - object already associated with session: [DataTransfer.items_temp#56876]
而且,这里是它被称为 -
item.status.id = Int32.Parse(formValues["Status"]);
_provider.UpdateItem_temp(item);
这里是从我的数据提供程序的代码。
public void UpdateItem_temp(items_temp item_temp)
{
ITransaction t = _session.BeginTransaction();
try
{
_session.SaveOrUpdate(item_temp);
t.Commit();
}
catch (Exception)
{
t.Rollback();
throw;
}
finally
{
t.Dispose();
}
}
第一部分为+1。我们并不真正了解第二部分,因为没有发布数据对象定义,但这在很大程度上与问题无关。 – 2010-04-12 18:27:14
这是票 - 完美的工作。谢谢 – czuroski 2010-04-12 18:35:23
+1。我希望我早点发现它。 – 2011-09-06 08:00:36