c# - load child objects after session closed -

i want load objects sub after session closed, anyway that?

using (var session = nhibernatehelper<t>.opensession()) {     foo = session.createcriteria(foo).list<foo>(); }  using (var session = nhibernatehelper<t>.opensession()) {      foo.children.load(); }   public static void load<t>(this ilist<t> list) {      //load foo children } 

we can here profit nhibernate native support working detached objects

19.1.4. initializing collections , proxies

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may attach loaded object new isession merge() or lock() before accessing uninitialized collections (or other proxies). no, nhibernate not, , should not automatically, since introduce ad hoc transaction semantics!
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the adjusted load() method this:

public static tentity loadcollection<tentity, titem>(         tentity entity,          func<tentity, ilist<titem>> listgetter)     tentity : class {     using (var session = nhibernatehelper<t>.opensession())     {         // here brand new - connected - instance of tentity         tentity reattached = session.merge<tentity>(entity);          nhibernate.nhibernateutil             .initialize(listgetter.invoke(reattached));          return reattached;     } } 

and calling side:

using (var session = nhibernatehelper<t>.opensession()) {     ilist<foo> foos = session.createcriteria<foo>()             ...             .list<contact>(); }  foo foo = foos.first();  // here merged instance initiated foo =  foo.loadcollection(f => f.somecollection); 

note: depends why need that. merging need change reference (old detached object lost).
enough (or better) load collection ilist<titem> directly, via session, using parentid = current.id... idea...