public ActionResult Index()
        {
            //Exemplo de como carregar um combo
            Sample3Entities       db = new Sample3Entities();
            List <SelectListItem> selectListItems = new List <SelectListItem>();

            foreach (Department department in db.Departments)
            {
                SelectListItem selectListItem = new SelectListItem
                {
                    Text     = department.Name,
                    Value    = department.Id.ToString(),
                    Selected = department.IsSelected.HasValue ? department.IsSelected.Value : false
                };
                selectListItems.Add(selectListItem);
            }

            ViewBag.Departments = selectListItems;

            // Para montar o combo na View:
            //< p > @Html.DropDownList("Departments", "Select Department") </ p >
            return(View());
        }