＆＃34;传入字典的模型项的类型为＆＃34;同时将模型传递给局部视图

Question

我有一个视图在此过程中呈现另一个局部视图。我的观点接收下面的模型

 public class JobsListViewModel
    {
        public IEnumerable<JobPost> JobPosts { get; set; }
        public PagingInfo PagingInfo { get; set; }
        public SearchTerms searchTerms { get; set; }
    }

我的部分视图接收下面的模型SearchTerms。

  public class SearchTerms
    {
        public string searchText { get; set; }
        public string JobFunction { get; set; }
        public string JobIndustry { get; set; }
        public string jobType { get; set; }
        public string JobLevel { get; set; }
        public string PostedDate { get; set; }
        public decimal MinSalary { get; set; }
    }

SearchTerms已经是JobsListViewModel的一部分。因此我尝试渲染我的部分视图，如下所示。

@Html.Partial("_SearchFormPartial",Model.searchTerms)

以上引发错误

  

＆＃34;传递到字典中的模型项的类型为＆＃39; JobWebSite.WebUI.Models.JobsListViewModel＆＃39;，但此字典需要类型为＆＃39; JobWebSite.WebUI.Models的模型项.SearchTerms＆＃39; ＆＃34;

从我上面的部分内容来看，我正在传递Model.SearchTerms。不满足要求吗？请任何帮助将不胜感激。

修改

感谢您的回复。斯蒂芬先生下面提到的问题恰好是问题所在。以下是我的控制器。

 [HttpGet]
    public ViewResult List(int page = 1)
     {
     JobPosts = (IEnumerable<JobPost>)
                          (from posts in repository.JobPosts
                           orderby posts.PostDate descending
                           select new
                           {
                               Id = posts.Id,
                               Post = posts.Post,
                               Logo = posts.Logo,
                               PostDate = posts.PostDate,
                               EmployerId = posts.EmployerId,
                               CategoryId = posts.CategoryId,
                               RegionId = posts.RegionId,
                               TypeId = posts.TypeId,
                               PostTitle = posts.PostTitle,
                               JobIndustryId = posts.JobIndustryId,
                               JobFunctionId = posts.JobFunctionId,
                               JobLevelId = posts.JobLevelId,
                               Salary = posts.Salary
                           }).AsEnumerable().Select(x => new JobPost
                               {
                                   Id = x.Id,
                                   Post = x.Post,
                                   Logo = x.Logo,
                                   PostDate = x.PostDate,
                                   EmployerId = x.EmployerId,
                                   CategoryId = x.CategoryId,
                                   RegionId = x.RegionId,
                                   TypeId = x.TypeId,
                                   PostTitle = x.PostTitle,
                                   JobIndustryId = x.JobIndustryId,
                                   JobFunctionId = x.JobFunctionId,
                                   JobLevelId = x.JobLevelId,
                                   Salary = x.Salary
                               })
                               .Skip((page - 1) * PageSize)
                               .Take(PageSize),
                    PagingInfo = new PagingInfo
                    {
                        CurrentPage = page,
                        ItemsPerPage = PageSize,
                        TotalItems = repository.JobPosts.Count()
                    },
                    searchTerms = CtrlsearchTerms 


                };


     return View("Search", model);
    }

请注意。 CtrlsearchTerms在httpPost方法中设置。根据斯蒂芬先生的说法，我的SearchTerms是空的，确实如此。当我将控制器更改为

时

[HttpGet]
        public ViewResult List(int page = 1)
         {
         JobPosts = (IEnumerable<JobPost>)
                              (from posts in repository.JobPosts
                               orderby posts.PostDate descending
                               select new
                               {
                                   Id = posts.Id,
                                   Post = posts.Post,
                                   Logo = posts.Logo,
                                   PostDate = posts.PostDate,
                                   EmployerId = posts.EmployerId,
                                   CategoryId = posts.CategoryId,
                                   RegionId = posts.RegionId,
                                   TypeId = posts.TypeId,
                                   PostTitle = posts.PostTitle,
                                   JobIndustryId = posts.JobIndustryId,
                                   JobFunctionId = posts.JobFunctionId,
                                   JobLevelId = posts.JobLevelId,
                                   Salary = posts.Salary
                               }).AsEnumerable().Select(x => new JobPost
                                   {
                                       Id = x.Id,
                                       Post = x.Post,
                                       Logo = x.Logo,
                                       PostDate = x.PostDate,
                                       EmployerId = x.EmployerId,
                                       CategoryId = x.CategoryId,
                                       RegionId = x.RegionId,
                                       TypeId = x.TypeId,
                                       PostTitle = x.PostTitle,
                                       JobIndustryId = x.JobIndustryId,
                                       JobFunctionId = x.JobFunctionId,
                                       JobLevelId = x.JobLevelId,
                                       Salary = x.Salary
                                   })
                                   .Skip((page - 1) * PageSize)
                                   .Take(PageSize),
                        PagingInfo = new PagingInfo
                        {
                            CurrentPage = page,
                            ItemsPerPage = PageSize,
                            TotalItems = repository.JobPosts.Count()
                        },
                         //Initialize my SearchTerms Below as suggested
                        searchTerms = new SearchTerms()


                    };


         return View("Search", model);
        }

这很好用。错误现在消失了。谢谢你的时间。

Answer 1

当您传递给partial的模型为null时，会发生这种情况。实际上，与@Html.Partial("_SearchFormPartial", null)相同的行为@Html.Partial("_SearchFormPartial")，即主视图ViewDaatDictionary（JobsListViewModel）正在传递给部分。在控制器或无参数构造函数中初始化SearchTerms的新实例，例如

public class JobsListViewModel
{
    public JobsListViewModel()
    {
        searchTerms = new SearchTerms();
    }
    public IEnumerable<JobPost> JobPosts { get; set; }
    public PagingInfo PagingInfo { get; set; }
    public SearchTerms searchTerms { get; set; }
}