What is the correct way to use nhibernate transactions and second level cache on an asp.net-mvc page?

Question

I have a number of pages that run 10 t0 15 different queries to build up a page. I see from a few articles, to have nhibernate second level cache working I need to use transactions.

So I want to confirm that i should be putting all of those 10 to 15 queries inside a single transaction? something like this?

    var session = Repository.Session;
    using (var tx = session.BeginTransaction())
     {
           var viewModel = new ViewModel();
           viewModel.Cars  = session.Query<Car>();
           viewModel.Dogs = session.Query<Dog>();
           viewModel.Cats  = session.Query<Cat>();
           viewModel.Birds  = session.Query<Bird>();
            tx.Commit();
      }

Answer 1

The queries do not need to be executed in the same transaction but there's no reason not to. That is, it's not necessary but it's more work to do it any other way.