MVC 4: building composite viewmodel - asp.net-mvc

Question

I am new to ASP.NET MVC. I need to build a composite viewmodel out of three nested or cascading classes: Sport>Tournament>TournamentEvent
public class Sport
{
public int Id { get; set; }
public string SportName { get; set; }
public virtual ICollection<Tournament> Tournaments { get; set; }
}
public class Tournament
{
public int Id { get; set; }
public string TournamentName { get; set; }
public int SportId { get; set; }
public virtual ICollection<TournamentEvent> TournamentEvents { get; set; }
}
public class TournamentEvent
{
public int Id { get; set; }
public string EventName { get; set; }
public int TournamentId { get; set; }
}
As you can gather, each sport contains a collection of tournaments and each tournament contains a collection of events. I need to construct an unordered list, like so:
<li> Soccer
<li>English Premier League
<li>Chelsea v Arsenal</li>
</li>
</li>
I need to build a composite viewmodel, using linq, to pass to my view, but I just can't figure it out. Please help

Answer 1

Don't you just need a parent vie model that contains a list of Sport?
public class Sport
{
public List<Sport> Sports { get; set; }
}
You can iterate through the collections using razor.
Can you clarify where you think linq comes into it? I might have got the wrong end of the stick.

Answer 2

I don't think that works, tom. I need access to the Tournament and TournamentEvent classes and I need to load them into my object, which is where linq comes in. In the SportsController:
public partial class SportsController : Controller
{
private MyDb db = new MyDb();
public virtual ActionResult Index()
{
var menuObject = from s in db.Sports
select s;
return View(menuObject);
}
}

Answer 3

Create a class call it SportTournamentEventViewModel.cs
using "LibraryName".Models;
public class SportTournamentEventViewModel
{
public List<Sport> Sports {get;set;}
public List<Tournament> Tournaments {get;set;}
public List<TournamentEvent> Events {get;set;}
}
in your action
private NameOfEntities db = new NameOfEntities();
public ActionResult "ActionResultName"()
{
db.Configuration.LazyLoading = false;
var sportList = db.Sport.ToList();
var tournamentList = db.Tournament.ToList();
var eventList = db.TournamentEvents.ToList();
var viewModel = new SportTournamentViewModel
{
Sports = sportList,
Tournaments = tournamentList,
Events = eventList,
};
return View(viewModel);
}