嗯-代码应该是这样的:

Well - the code should be something like this:

DetachedCriteria dc = DetachedCriteria.For<Employee>()
.Add (Subqueries.PropertyIn("EmployeeId",
     DetachedCriteria.For<Employee>()
         .SetProjection(Projections.Property("EmployeeId"))
         .Add(Restrictions.Lt("No_Of_years_working", 10))
         .Add(Restrictions.Eq("Post", "Manager"))
);

希望这会有所帮助.