Paging with PagedList, is it efficient?

Question

I have been trying to implement paging for quite a while now and I found this tutorial for paging with MVC: ASP.NET MVC Paging Done Perfectly

Now, in this solution,

Answer 1

The linked tutorial looks odd, because it uses a List. This will indeed bring all the clients into memory and then page through that. Instead, you should look for methods that use IQueryable, specifically Skip and Take, so paging should look like

IQueryable clients = repo.GetClients();          // lazy load - does nothing
List paged = clients.Skip(20).Take(10).ToList(); // execute final SQL

Depending on what mappers you use, you will find similar methods in EF, NHibernate, Linq-to-SQL etc