Show Foreign Key Data in view MVC

i have a problem like below :
I have 3 tables MenuFront, News and SubNews. MenuFront table containt a list of link. Then in News will containt content of each kind & has foreign key with MenuFront.
Some times in News they store as link then detail will store in SubNews then when i write a query to query out News but cannot get the SubNews information. This is the Controller

public partial class Loyalty_News { public Loyalty_News() { this.Loyalty_SubNews = new HashSet<Loyalty_SubNews>(); } public int Id { get; set; } public Nullable<int> CategoryId { get; set; } public string Title { get; set; } public string Description { get; set; } public string Content { get; set; } public string ImagePath { get; set; } public Nullable<int> LikeCount { get; set; } public Nullable<byte> IsHot { get; set; } public Nullable<byte> Status { get; set; } public Nullable<System.DateTime> CDate { get; set; } public string LUser { get; set; } public Nullable<System.DateTime> LDate { get; set; } public int MenuFrontID { get; set; } public virtual Loyalty_MenuFront Loyalty_MenuFront { get; set; } public virtual ICollection<Loyalty_SubNews> Loyalty_SubNews { get; set; } } 

Then here's then query

if (SubMenu != "" && SubMenu != null && Menu != null && Menu != "") { var news = from a in db.Loyalty_News join b in db.Loyalty_SubNews on a.Id equals b.NewsId where a.Id == Int32.Parse(Menu) && b.NewsId == Int32.Parse(SubMenu) select a; if (fromdate != null) { news = news.Where(m => m.CDate >= fromdate); } if (todate != null) { DateTime newtodate = todate ?? DateTime.Now; news = news.Where(m => m.LDate <= System.Data.Entity.DbFunctions.AddDays(newtodate, 1)); } return View(news); } else { var news = from a in db.Loyalty_News join b in db.Loyalty_SubNews on a.Id equals b.NewsId select a; if (Menu != null && Menu != "") { news = news.Where(m => m.Id == Int32.Parse(Menu)); } if (fromdate != null) { news = news.Where(m => m.CDate >= fromdate); } if (todate != null) { DateTime newtodate = todate ?? DateTime.Now; news = news.Where(m => m.LDate <= System.Data.Entity.DbFunctions.AddDays(newtodate, 1)); } return View(news); } 

And in View when i type

@item.Loyalty_SubNews. 

it should show the columns of SubNews but now it only show methods (eg: Where, Union,ToList, ....)

Please help me to get the data of SubNews.