any entity (object) that is fetched from the db with nhibernate
becomes associated with the nhibernate isession that fetched it, eg.
ISession session = sessionFactory.OpenSession();
var album = session.Get<Album>(id); // album is now
associated with session
//... do something to album ....
ISession session2 = sessionFactory.OpenSession();
session2.Update(album); // this is illegal.
You should manage your sessions.
This is a broader article, but it is on the point..
http://msdn.microsoft.com/en-us/magazine/ee819139.aspx
Best regards.
On Mar 29, 9:41 am, Munira <[email protected]> wrote:
> Hello all,
>
> We encounter the following exception
> "illegal attempt to associate a collection with two open sessions
> nhibernate"
>
> While trying to update and object. The object is an item in an IList
> collection. We loop through the collection and try to Update each
> object in the collection. The very first object update itself fails
> throwing the above mentioned error.
>
> I would be grateful for any idea or response!
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