Converter Enum em MVC Html.DropDownList

@{                    

   IList<SelectListItem> list= Enum.GetValues(typeof(YourEnumType)).Cast<YourEnumType>().Select(x => new SelectListItem { Text = x.ToString(), Value = ((int)x).ToString() }).ToList();

  SelectList data = new SelectList(list,"Value","Text");
}
@Html.DropDownList("idControl", data)