How do I select the Count(*) of an nHibernate Subquery's results

Question

I need to do the following for the purposes of paging a query in nHibernate:

Select count(*) from 
(Select e.ID,e.Name from Object as e where...)
         


        

Answer 1

I prefer,

    public IList GetOrders(int pageindex, int pagesize, out int total)
    {
            var results = session.CreateQuery().Add(session.CreateQuery("from Orders o").SetFirstResult(pageindex).SetMaxResults(pagesize));

            var wCriteriaCount = (ICriteria)results.Clone());

            wCriteriaCount.SetProjection(Projections.RowCount());

            total = Convert.ToInt32(wCriteriaCount.UniqueResult());


            return results.List();
    }