public void MultipleDBAccessUsingMultipleSessionScopes()
{
SessionScope scope1 = new SessionScope((ISessionFactory)ctx["SessionFactory1"], false);
SessionScope scope2 = new SessionScope((ISessionFactory)ctx["SessionFactory2"], false);
scope1.Open();
scope2.Open();
// do something
MultipleDBAccess();
scope1.Close();
scope2.Close();
}