我在MVC 5中使用AutoMapper 4.1.1,然后使用它将EF6中的实体(任何虚拟和无延迟加载的纯Poco)映射到viewModels。我有一个奇怪的问题,AutoMapper正在正确地进行翻译,但在另一个例子中失败了。
Dto.Person
{
public int PersonId { get; set; }
public string Name { get; set; }
public string Address { get; set; }
public string Phone { get; set; }
}
ViewModel.PersonDetailViewModel
{
public int PersonId { get; set; }
public string Name { get; set; }
public string Address { get; set; }
public string Phone { get; set; }
}
public class PagedPersons
{
public int TotalNumberOfRecords { get; set; }
public IEnumerable<Person> ListOfPersons { get; set; }
}
获取人员的功能
public IEnumerable<Person> GetAllPersons_NOPaging()
{
IEnumerable<Person> persons = new List<Person>();
persons = GetFromdatabase();
return persons;
}
public PagedPersons GetAllPersons_WithPaging()
{
int totalNumberOfRecords = 0;
IEnumerable<Person> = GetFromDatabase();
return new PagedPersons { TotalNumberOfRecords = totalNumberOfRecords, ListOfPersons = listofPersons };
}
控制器
var pagedPerson = GetAllPersons_WithPaging();
var persons = GetAllPersons_NOPaging();
AutoMapper.Mapper.CreateMap<Person, PersonDetailViewModel>();
// THROWS AN ERROR
var viewModel_1 = AutoMapper.Mapper.Map<IEnumerable<Person>, IEnumerable<PersonDetailViewModel>>(pagedPersons.ListOfPersons);
// does NOT throw error
var viewModel_2 = AutoMapper.Mapper.Map<IEnumerable<Person>, IEnumerable<PersonDetailViewModel>>(persons);
所以,我无法理解我做错了什么,因为AutoMapper能够在viewmodel_2的情况下正确映射,但在viewModel_1上抛出以下错误。
缺少类型映射配置或不支持的映射。
映射类型: 人 - &gt; PersonDetailViewModel MyProject.Dto.Person - &gt; MyProject.Website.ViewModels.PersonDetailViewModel
目的地路径: IEnumerable`1 [0]
来源价值: MyProject.Dto.Person
答案 0 :(得分:1)
您需要返回一个List&lt;&gt; - pagedPersons.ListOfPersons.ToList()
答案 1 :(得分:-1)
试
var viewModel_1 = AutoMapper.Mapper.Map<IEnumerable<Person>, IEnumerable<PersonDetailViewModel>>(pagedPersons.ListOfPersons.ToList());