[nhusers] illegal attempt to associate a collection with two open sessions c#

[Sri Ram B]

This happen when trying to update

break point stops here and raises error
public virtual T SaveOrUpdate(T entity)
{
NHibernateSession.SaveOrUpdate(entity);
return entity;
}




at
NHibernate.Collection.AbstractPersistentCollection.SetCurrentSession(ISessionImplementor
session)
at NHibernate.Event.Default.OnUpdateVisitor.ProcessCollection(Object
collection, CollectionType type)
at NHibernate.Event.Default.AbstractVisitor.ProcessValue(Object value,
IType type)
at NHibernate.Event.Default.AbstractVisitor.ProcessValue(Int32 i,
Object[] values, IType[] types)
at
NHibernate.Event.Default.AbstractVisitor.ProcessEntityPropertyValues(Object[]
values, IType[] types)
at NHibernate.Event.Default.AbstractVisitor.Process(Object obj,
IEntityPersister persister)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.PerformUpdate(SaveOrUpdateEvent
event, Object entity, IEntityPersister persister)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.EntityIsDetached(SaveOrUpdateEvent
event)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent
event)
at
NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent
event)
at NHibernate.Impl.SessionImpl.FireSaveOrUpdate(SaveOrUpdateEvent event)
at NHibernate.Impl.SessionImpl.SaveOrUpdate(Object obj)
at Hpd.NHibernateV3.GenericDao`2.SaveOrUpdate(T entity) in
C:\Users\SRIRAM\Desktop\New folder (3)\Hpd.NHibernateV3\GenericDao.cs:line
116
at
Hpd.HoseProcessSpecs.Web.Default.UpdateProcessRevision(IProcessRevision
processRevision) in C:\Users\SRIRAM\Desktop\New folder
(3)\Hpd.HoseProcessSpecs.Web\Default.aspx.cs:line 1865
at Hpd.HoseProcessSpecs.Web.Default.SaveRevisionInfoData() in
C:\Users\SRIRAM\Desktop\New folder
(3)\Hpd.HoseProcessSpecs.Web\Default.aspx.cs:line 4282
at
Hpd.HoseProcessSpecs.Web.Default.ProcessRevisionInfo_SaveThisSectionButtonClicked(Object
sender, EventArgs e) in C:\Users\SRIRAM\Desktop\New folder
(3)\Hpd.HoseProcessSpecs.Web\Default.aspx.cs:line 2674
at System.EventHandler.Invoke(Object sender, EventArgs e)
at
Hpd.HoseProcessSpecs.Web.UserControls.ProcessRevisionInfo.OnSaveThisSectionButtonClick()
in C:\Users\SRIRAM\Desktop\New folder
(3)\Hpd.HoseProcessSpecs.Web\UserControls\ProcessRevisionInfo.ascx.cs:line
114
at
Hpd.HoseProcessSpecs.Web.UserControls.ProcessRevisionInfo.ButtonSaveThisSection_Click(Object
sender, EventArgs e) in C:\Users\SRIRAM\Desktop\New folder
(3)\Hpd.HoseProcessSpecs.Web\UserControls\ProcessRevisionInfo.ascx.cs:line
136
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String
eventArgument)
at
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[Alexander Zaytsev]

Ok