asp.net mvc - Details view doesn't work mvc 5 -

i have mvc 5 application. follow tutorial getting started asp.net mvc 5

altough when click details, edit or delete http error 400.0 - bad request.

my index view

@foreach (var item in model)     {  <div class="city">  <h2>@html.displayfor(modelitem => item.announce_publishdate)</h2>  <p>@truncate(item.announce_description, 90)</p>  <p>@html.actionlink("more", "details", new { id = item.announce_id }) </p></div>} 

my details view

<div> <h4>prokirikseis</h4> <hr /> <dl class="dl-horizontal">     <dd>         @html.displayfor(model => model.announce_id)     </dd>     <dd>         @html.displayfor(model => model.announce_description)     </dd>     <dd>         @html.displayfor(model => model.announce_publishdate)     </dd>      </dl>     </div>       <p> @html.actionlink("edit", "edit", new { id = model.announce_id }) | @html.actionlink("back list", "index")</p> 

the controller

public actionresult details(int? id)     {         if (id == null)         {             return new httpstatuscoderesult(httpstatuscode.badrequest);         }         announce announce= db.announce.find(id);         if (announce == null)         {             return httpnotfound();         }         return view(announce);     } 

the model

public class announcements  {     [key]     public string announce_id { get; set; }      [display(name = "date")]     [datatype(datatype.date)]     [displayformat(dataformatstring = "{0:dd-mm-yyyy}", applyformatineditmode = true)]     public nullable<system.datetime> announce_publishdate { get; set; }      [display(name = "title")]     public string announce_description { get; set; } } 

what doing wrong? notice brings right id in url. http://localhost:zzzzz/ltest/details/01_2.2 does't bring content. thank you

your action methods accepting parameter typeof int key in class announcements string, not int. (and url in question passing value of 01_2.2 details() method id null).

change methods to

public actionresult details(string id) 

although recommend change key auto incremented int