asp mvc razor填充Html.DropDownList

Question

在控制器中我有：

public ActionResult Create()
        {
            ViewBag.dData = db.Bank.Select(b => b.Omschrijving).ToList();
            return View();
        }

并在视图中：

@Html.DropDownList("Omschrijving",ViewBag.dData as List<SelectListItem>)

I get a error: There is no ViewData item of type 'IEnumerable<SelectListItem>' that has the key 'Omschrijving'

我该如何解决？

Answer 1

public ActionResult Create()
{
    ViewBag.dData = db.Bank
        .Select(b => new SelectListItem() { Key = b.Omschrijving }).ToList();
    return View();
}

您还需要设置Value的{​​{1}}属性。