Peter, you are try to use a single instance across multiple sessions
without associating the instance with the session. to access lazy data
you need to merge the object with session. I think merge is
appropriate here.
RptSource src = null;
using (var session = NHibernateHelper.OpenSession())
{
src = session.Load<RptSource>(sourceid);
}
using (var session = NHibernateHelper.OpenSession())
{
session.Merge(src);
var body = src.Body;
}
I wouldn't structure my code to require the user of merge though. i
would use a single session for the entire operation.
On Sep 15, 1:44 pm, Oskar Berggren <[email protected]> wrote:
> As Jason said, it might be that you should avoid using multiple
> sessions. However, if you really want that, remember that when the
> first session is disposed all objects loaded using it loose their
> session association. You need to attach the object to the new session
> using e.g. SaveOrUpdate(), Update(), or Lock(), with proper arguments.
>
> /Oskar
>
> 2010/9/15 PLen <[email protected]>:
>
> > The session that was used for the original query :
>
> > using (ISession session = NHibernateHelper.OpenSession()) {
> > RptSource src =
> > testSession.CreateCriteria(typeof(RptSource)).Add(Restrictions.Eq("SourceId",
> > sourceid)).UniqueResult<RptSource>();
> > byte barr = src.Body;
> > }
>
> > was both disconnected and closed after the "using" statement (although
> > the session object itself was not null). If I accessed the Body
> > property before the end of the "using" statement, then all was well
> > because the session was still connected. As a test I tried the
> > following:
>
> > using (ISession session = NHibernateHelper.OpenSession()) {
> > byte barr = src.Body;
> > }
>
> > In this case, the session (retrieved from the helper class) was
> > connected and open, but I still received the error "session is not
> > connected". This makes me think that the src object is connected in
> > some way with the original session object, which has since been
> > disconnected. I was never sure what session the NHibernate API was
> > trying to use since the statement "src.Body" does not specify any
> > given session. So would it be true to state that the NHibernate API
> > links the session that was used to retrieve the "src" object with the
> > "src" object in some fashion? Otherwise, how would the API know
> > which session object to use in the src.Body call?
>
> > Thoughts?
>
> > - Peter
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "nhusers" group.
> > To post to this group, send email to [email protected].
> > To unsubscribe from this group, send email to
> > [email protected].
> > For more options, visit this group
> > athttp://groups.google.com/group/nhusers?hl=en.
>
>
--
You received this message because you are subscribed to the Google Groups
"nhusers" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/nhusers?hl=en.
