我想使用Razor和MVC3呈现ViewModel。出于某种原因,我的SelectList(下面的WidgetTypes)不会渲染,即使其余的渲染都很好。任何人都可以说出为什么不是?我不希望将视图更改为对每个字段使用@ Html.EditorFor(m => m.SystemName)等,因为我使用的动态模型将导致相同的问题。MVC3使用@ Html.EditorFor时不呈现我的SelectList
我的视图模型:
public class CreateWidgetViewModel
{
[Required]
public string Title { get; set; }
[Required(ErrorMessage = "The System Name is required")]
[Display(Name = "System Name")]
public string SystemName { get; set; }
[Required]
[Display(Name = "Widget Type")]
public string WidgetType { get; set; }
[Required]
[Display(Name = "Widget Types")]
public SelectList WidgetTypes { get; set; }
}
我的控制器:
[HttpGet]
public ActionResult Create()
{
var widgetTypes = from wt in _widgetService.WidgetTypes
select new
{
Name = wt.WidgetName,
WidgetType = wt.GetType().AssemblyQualifiedName
};
var viewModel = new CreateWidgetViewModel
{
WidgetTypes = new SelectList(widgetTypes, "WidgetType", "Name")
};
if (Request.IsAjaxRequest())
{
return PartialView(viewModel);
}
return View(viewModel);
}
笔者认为:
@{
ViewBag.CurrentPage = "widgets";
}
<h2>@ViewBag.Title</h2>
@using (Html.BeginForm())
{
@Html.ValidationSummary(true)
<fieldset>
<div>
@Html.EditorFor(model => model)
</div>
</fieldset>
<div>
<input type="submit" value="Save" /> or @Ajax.ActionLink("Back to list", "Index", "Widget",
new AjaxOptions { HttpMethod = "Get", UpdateTargetId = "ajax-replace" })
</div>
}
在你的模型中使用SelectList并不是一件好事,因为它不是可序列化的 - 如果你打开状态服务器,你就会敬酒。 – gangelo 2012-09-11 23:58:50