Can .NET 4 ISet<> HashSet<> replace NHibernate Iesi.Collections ISet , HashSet?

Question

Can .NET 4 ISet<> HashSet<> replace NHibernate Iesi.Collections ISet , HashSet ? I am using Castle proxy, and NHibernate 3.0 .

Answer 1

Yes. There are two approaches:

1. Declare your collection as ICollection and initialize it as HashSet. See this article. I model collections as private members and expose IEnumerable so this works well, but the downside is that you can't expose ISet.
2. Use Jose Romaniello's Set4Net4 NuGet package. See this article and the source code.