本文实例讲述了ASP.NET MVC4中使用Html.DropDownListFor的方法。分享给大家供大家参考，具体如下：
一、控制器部分：
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public ActionResult PageDetail()
{
var thisList = _sysDepartmentBll.GetAllDepartmentList();//数据源
//添加一条默认数据
var resultList = new List<SelectListItem>
{
new SelectListItem {Text = "--请选择--", Selected = true, Value = ""}
};
//将数据源添加到resultList集合中
resultList.AddRange(thisList.Select(thisModel => new SelectListItem
{
Text = thisModel.DepartmentName,
Selected = false,
Value = thisModel.DepartmentId
}));
ViewBag.DepartmentList= GetDepartmentSelectList(_sysDepartmentBll.GetAllDepartmentList());
return View();
}
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二、PageDetail.cshtml部分
复制代码 代码如下:
@Html.DropDownListFor(m => m.DepartmentId, ViewBag.DepartmentList as IEnumerable<SelectListItem>, new { id = "ddlDepartment"})
或者：
复制代码 代码如下:
@Html.DropDownListFor(m => m.DepartmentId, (List<SelectListItem>)ViewBag.DepartmentList, new { id = "ddlDepartment"})
希望本文所述对大家asp.net程序设计有所帮助。