尝试在浏览器中搭建控制器后，类型未映射

Question

我收到错误：

类型“GMS_Sandbox_MVC.Models.Organization”未映射。查看 该类型尚未通过使用 Ignore 显式排除 方法或 NotMappedAttribute 数据注释。验证类型是否为 定义为类，不是原始的、嵌套的或泛型的，并且不 继承自 EntityObject。 源文件：C:\source temp\GMS_Sandbox_MVC\GMS_Sandbox_MVC\Models\OrganizationRepository.cs> >行：14

源错误：

Line 12:     {
Line 13:        // GMSSandboxMVCContext context = new GMSSandboxMVCContext();
Line 14:          GMSSandboxMVCContext context = new GMSSandboxMVCContext();
Line 15: 
Line 16:         public IQueryable<Organization> All

有人知道可能导致此问题的原因吗？

错误日志中写道：

错误 12 类型或命名空间名称“GMSSandboxMVCEntities”无法 被发现（您是否缺少 using 指令或程序集 参考？）C:\source 临时\GMS_Sandbox_MVC\GMS_Sandbox_MVC\Models\OrganizationRepository.cs

OrganizationRepository.CS

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Linq.Expressions;
using System.Web;

namespace GMS_Sandbox_MVC.Models
{ 
public class OrganizationRepository : IOrganizationRepository
{
   // GMSSandboxMVCContext context = new GMSSandboxMVCContext();
     GMSSandboxMVCContext context = new GMSSandboxMVCContext();

    public IQueryable<Organization> All
    {
        get { return context.Organizations; }
    }

    public IQueryable<Organization> AllIncluding(params Expression<Func<Organization, object>>[] includeProperties)
    {
        IQueryable<Organization> query = context.Organizations;
        foreach (var includeProperty in includeProperties) {
            query = query.Include(includeProperty);
        }
        return query;
    }

    public Organization Find(string id)
    {
        return context.Organizations.Find(id);
    }

    public void InsertOrUpdate(Organization organization)
    {
        if (organization.org_nbr == default(string)) {
            // New entity
            context.Organizations.Add(organization);
        } else {
            // Existing entity
            context.Entry(organization).State = EntityState.Modified;
        }
    }

    public void Delete(string id)
    {
        var organization = context.Organizations.Find(id);
        context.Organizations.Remove(organization);
    }

    public void Save()
    {
        context.SaveChanges();
    }
}

public interface IOrganizationRepository
{
    IQueryable<Organization> All { get; }
    IQueryable<Organization> AllIncluding(params Expression<Func<Organization, object>>[] includeProperties);
    Organization Find(string id);
    void InsertOrUpdate(Organization organization);
    void Delete(string id);
    void Save();
}

} OrganizationController.CS

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

namespace GMS_Sandbox_MVC.Controllers
{   
    public class OrganizationController : Controller
    {
        private readonly IOrganizationRepository organizationRepository;

        // If you are using Dependency Injection, you can delete the following constructor
        public OrganizationController() : this(new OrganizationRepository())
        {
        }

        public OrganizationController(IOrganizationRepository organizationRepository)
        {
            this.organizationRepository = organizationRepository;
        }

        //
        // GET: /Organizations/

        public ViewResult Index()
        {
            return View(organizationRepository.AllIncluding(organization => organization.Assoc_Role, organization => organization.Grants, organization => organization.Distro_List));
        }

        //
        // GET: /Organizations/Details/5

        public ViewResult Details(string id)
        {
            return View(organizationRepository.Find(id));
        }

        //
        // GET: /Organizations/Create

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

        //
        // POST: /Organizations/Create

        [HttpPost]
        public ActionResult Create(Organization organization)
        {
            if (ModelState.IsValid) {
                organizationRepository.InsertOrUpdate(organization);
                organizationRepository.Save();
                return RedirectToAction("Index");
            } else {
                return View();
            }
        }

        //
        // GET: /Organizations/Edit/5

        public ActionResult Edit(string id)
        {
             return View(organizationRepository.Find(id));
        }

        //
        // POST: /Organizations/Edit/5

        [HttpPost]
        public ActionResult Edit(Organization organization)
        {
            if (ModelState.IsValid) {
                organizationRepository.InsertOrUpdate(organization);
                organizationRepository.Save();
                return RedirectToAction("Index");
            } else {
                return View();
            }
        }

        //
        // GET: /Organizations/Delete/5

        public ActionResult Delete(string id)
        {
            return View(organizationRepository.Find(id));
        }

        //
        // POST: /Organizations/Delete/5

        [HttpPost, ActionName("Delete")]
        public ActionResult DeleteConfirmed(string id)
        {
            organizationRepository.Delete(id);
            organizationRepository.Save();

            return RedirectToAction("Index");
        }
    }
}

我正在使用 此处

Answer 1

我几乎遇到了这种情况，但找不到太多指导。我最终发现了一些事情，如果其他人处于类似的位置，可能值得尝试：

1. 删除并重新创建您的 edmx - 对我来说不起作用，但值得一试！
2. 确保您安装了最新版本的 EF - 我对此寄予厚望，但仍然没有成功。
3. http://jameschambers.com/blog/asp.net -mvcscaffolding-generates-extra-properties-in-views - 我现在有另一个错误（可能是由于 复杂键），但我很确定这已经解决了前一个问题！