I have a model with object with a child collection which further has a child collection.

I have set the parent objects to cascade "All-Delete-Orphan".

When I try to delete the top level object - NH tries to update the children objects with NULL values first instead of just deleting them. Is that normal behaviour? How do I get around this?

Thanks
Manuj

I have exactly the same problem, hibernate puts null instead of deleting the complete row, suggestions??

Thanks!

Are you using bi-directional association, if yes have you correctly specified the inverse=true attribute for the bi-directional association. If yes then you should not be seeing this behaviour.

Please check this.

I solved the problem using a composite-element instead of a mapped entity.
The old mapping:

The new mapping:

Thanks!!

I have gone across the similar problem,and I really don't know what goes wrong:
this.m_Parent = this.m_Session.Load(typeof(Parent), 1) as Parent;
this.m_Child.SingleParent = this.m_Parent;
this.m_Child.ChildID = 1;
this.m_Child.Name = "Child01";
this.m_Parent.Children.Add(this.m_Child);
this.m_Session.Flush();
I have set the parent objects to cascade "All",and inverse"true" .But when I flush the session.An exception breaks out
:NHibernate.HibernateException was unhandled
Message="SQL insert, update or delete failed (expected affected row count: 1, actual affected row count: 0). Possible causes: the row was modified or deleted by another user, or a trigger is reporting misleading row count."
Source="NHibernate"

While I having none trigger for the database