asp.net mvc - MVC 4 TreeView Menu -

I tried to follow it, because it was cited as an example in many places:

< P>

) {MenuDBContext db = new menu dbctext (); ViewData ["AllMenu"] = DB. Menu .Oolist (); See refund (db.Menus.ToList (). Where (C => c. PID == faucet)); }

View category:

  @ {ViewBag.Title = "index"; } @model iInmerebel & lt; Geo.Models.Menu & gt; & Lt; H2 & gt; Index & lt; / H2 & gt; @ Varic (Miscellaneous items in the model) {& lt; Li & gt; @item @ {var kids = watchdata ["allmenu"]. Where (C => C.PID == item.ID);} if (kids.count ()> gt; { ul & gt; @ {Html.RenderPartial ("ItemControl", children) ;}  gt;}   
 I can not work for my life because I can not use it. Where children About "View" ["AllMenu"] or any device, where I am going wrong, it will be fantastic.   "post-text" itemprop = "text"> 
 IEnumera as "videadata [" allmenu "] as IEnumerable & lt;  
  var kids = (ViewData [" AllMenu "]) Ble & gt; GeomantApp.Models.Menu & gt;) where (C => C ....   
 data  dictionary & lt; string, object & gt; , so when you try and obtain a property from that dictionary, then there is no way to know that ASP.NET is what it is before hand if you do not put your object first Compiler errors.