Question

I am developing a multi-layered, using ASP.NET MVC 3 and Entity Framework. I have an entity called “Site” which belongs to the domain layer. It is acceptable to mention directly in a domain entity viewmodel and the views?

ViewModel

public IList <Domain.Entities.Site> Sites;

View

foreach (var item in Model.Sites)
{
...
}

Answer 1

Typically not. The point of a ViewModel is to abstract only the information needed from the Model.

You should have a ViewModel that also corresponds to the Site model.

So you would have:

// assuming the Domain model is what we're talking about
public class DomainViewModel
{
    public IList<SiteViewModel> Sites { get; set; }
}