3
我得到了上面承受错误,而POST形式,我认为受到错误的根本原因是“DropDownListFor”,其中多次SelectList两次调用,如果是的,请提出解决方案?没有为此对象定义的无参数构造函数?
如果我从“x => x.Values”更改为“x => x.Name”,那么还会出现错误“There is no ViewData item of type'IEnumerable'has key'DDLView.Name'。 “
编辑模板
@model DropDownListViewModel
@Html.LabelFor(x=>x.Values, Model.Label)
@Html.DropDownListFor(x=>x.Values, Model.Values)
视图模型
public class HomePageViewModel
{
public DropDownListViewModel DDLView { get; set; }
}
public class DropDownListViewModel
{
public string Label { get; set; }
public string Name { get; set; }
public SelectList Values { get; set; }
}
控制器
public ActionResult Index()
{
HomePageViewModel homePageViewModel = new HomePageViewModel();
homePageViewModel.DDLView = new DropDownListViewModel
{
Label = "drop label1",
Name = "DropDown1",
Values = new SelectList(
new[]
{
new {Value = "1", Text = "text 1"},
new {Value = "2", Text = "text 2"},
new {Value = "3", Text = "text 3"},
}, "Value", "Text", "2"
)
};
}
[HttpPost]
public ActionResult Index(HomePageViewModel model)
{
return View(model);
}
查看
@model Dynamic.ViewModels.HomePageViewModel
@using (Html.BeginForm())
{
@Html.EditorFor(x=>x.DDLView)
<input type="submit" value="OK" />
}
thnx的回复,但wht应该写在视图和编辑器模板? – user584018 2012-07-12 00:25:06