NerdDinner DinnerFormViewModel错误CS0030错误

Question

我正在学习专业版ASP.NET MVC2中的NerdDinner部分，目前我需要实现DinnerFormViewModel和Renderpartial Dinnerform。这本书有一些错误，所以我试着在互联网上搜索并自己修复它。

我将DinnerFormViewModel放在Models文件夹中，代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace NerdDinner.Models
{
    public class DinnerFormViewModel : Controller
    {
        private static string[] _countries = new[]{
        "USA",
        "Ireland",
        "Scotland",
        "Namibia"
    };

        //Properties
        public Dinner Dinner { get; private set; }
        public SelectList Countries { get; private set; }

        //Constructor
        public DinnerFormViewModel(Dinner dinner)
        {
            Dinner = dinner;
            Countries = new SelectList(_countries, dinner.Country);
        }


        // GET: /DinnerFormViewModel/

        public ActionResult Index()
        {
            return View();
        }

    }
}

然后我创建了DinnerForm.ascx (分部类)：

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewPage<NerdDinner.Models.DinnerFormViewModel>" %>


<%: Html.ValidationSummary("Please correct the errors and try again.") %>

<% using (Html.BeginForm()) { %>

    <fieldset>

        <p>
            <%: Html.LabelFor(m => m.Dinner.Title) %>
            <%: Html.TextBoxFor(m => m.Dinner.Title) %>
            <%: Html.ValidationMessageFor(m => m.Dinner.Title, "*") %>

等等。

我已经做了如下的edit.aspx：

<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<NerdDinner.Models.DinnerFormViewModel>" %>

<asp:Content ID="Title" ContentPlaceHolderID="TitleContent" runat="server">
    Edit: <%: Model.Dinner.Title %>
</asp:Content>

<asp:Content ID="Edit" ContentPlaceHolderID="MainContent" runat="server">

    <h2>Edit Dinner</h2>

    <% Html.RenderPartial("DinnerForm"); %>

</asp:Content>

现在，如果我启动应用程序，将弹出<% Html.RenderPartial("DinnerForm")；错误提示: c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary Files\root\c8cca855\23406a1e\App_Web_dinnerform.ascx.32d6c807.tczxq3bd.0.cs(166)：ASP.NET CS0030: Cannot convert type 'ASP.views_dinners_dinnerform_ascx‘to 'System.Web.Mvc.ViewUserControl’

我认为这与命名空间有关，但我不能修复错误，有人遇到了同样的问题，或者这里有人可以帮助我？？谢谢！：)

Answer 1

您的分部视图应该继承自System.Web.Mvc.ViewUserControl。

ViewPage是用于查看完整视图的。