Question

Possible Duplicate:
How can I get this ASP.NET MVC SelectList to work?

What the hell is it? Is there some kind of a bug in DropDownList of MVC3?
SelectedValue doesn’t show up as actually selected in the markup.

I am trying different approaches, nothing works.

public class SessionCategory
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public static IEnumerable<SessionCategory> Categories
{
     get
      {
          var _dal = new DataLayer();
          return _dal.GetSesionCategories();
      }
}

@{
        var cats = Infrastructure.ViewModels.Session.Categories;
        var sl = new SelectList(cats, "Id", "Name",2);
}
@Html.DropDownList("categories", sl);

Answer 1

I think you need to make the selected value a string. There’s also some value in using extension methods as detailed here.