"The model item passed into the dictionary is of type" 将模型传递给局部视图

Question

我有一个视图正在渲染另一个局部视图。我的看法收到下面的模型

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

我的分部视图收到以下模型 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。因此我尝试如下所示呈现我的部分视图。

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

以上抛出一个错误

"The model item passed into the dictionary is of type 'JobWebSite.WebUI.Models.JobsListViewModel', but this dictionary requires a model item of type 'JobWebSite.WebUI.Models.SearchTerms' "

从我上面的部分来看，我超过了 Model.SearchTerms。那不应该满足要求吗？请提供任何帮助。

编辑

感谢您的回复。斯蒂芬先生在下面提到的恰好是问题所在。下面是我之前的控制器。

 [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);
    }

注意。 CtrlsearchTerms 在 httpPost 方法中设置。根据 Stephen 先生的说法，My SearchTerms 是空的，事实确实如此。当我将控制器更改为

[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。现在错误消失了。谢谢你的时间。

Answer 1

当您传递给局部的模型是 null 时会发生这种情况。实际上，您所做的 @Html.Partial("_SearchFormPartial", null) 与 @Html.Partial("_SearchFormPartial") 相同，即主视图 (JobsListViewModel) 的 ViewDaatDictionary 正在传递给局部视图。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; }
}

"The model item passed into the dictionary is of type" 将模型传递给局部视图

"The model item passed into the dictionary is of type" while passing model to a partial view

c#

asp.net-mvc

dictionary