asp.net-mvc - MVC4 列表框异常

Question

我正在尝试填充列表框

@Html.ListBox("Employees", new MultiSelectList((IEnumerable<CubicHRM.Data.Entities.Employee>)(ViewData["Employees"]) as SelectList, "UserID", "UserName"), new { id = "sourceItems", Multiple = "multiple" })

这给出了以下异常

Unable to cast object of type 'System.Web.Mvc.SelectList' to type 'System.Collections.Generic.IEnumerable

谁能告诉可能是什么原因？

Answer 1

这件事做到了

@Html.ListBox("Employees", (MultiSelectList)ViewData["Employees"],  new { id = "sourceItems", Multiple = "multiple" })