Question

我有一个看起来像这样的EF实体：

public class Customer
{
    public int IdCustomer {get; private set;}
    public string Name {get; private set;}
    ICollection<Specialty> Specialties {get;private set;}
}

public class Specialty
{
    public int IdSpecialty {get;private set}
    public int? IdSpecTypeOne {get;private set;}
    public int? IdSpecTypeTwo {get;private set;}
    public string Name {get;private set;}

    public virtual SpecTypeOne SpecialtyTypeOne {get;private set;}
    public virtual SpecTypeTwo SpecialtyTypeOne {get;private set;}
}

public class SpecTypeOne
{
    public int IdSpecTypeOne {get;private set;}
    public string Name {get;private set;}
}

public class SpecTypeTwo
{
    public int IdSpecTypeTwo {get;private set;}
    public string Name {get;private set;}
}

和ViewModel：

public class CustomerViewModel
{
  public int IdCustomer
  public List<CustomerSpecialtyViewModel> SpecialtyOfTypeOne {get; set;}
  public List<CustomerSpecialtyViewModel> SpecialtyOfTypeTwo {get;set;}
}

public class CustomerSpecialtyViewModel
{
  public int IdSpecialty {get;set;}
  public int IdSpecTypeOne {get;set;}
  public int IdSpecTypeTwo {get;set;}
  public string SpecTypeName {get;set;}
}

基本上，我想像上面那样构建我的ViewModel，将 Specialty 和 SpecType 展平为单个ViewModel（ CustomerSpecialtyViewModel ）。

我将ViewModel映射为：

Mapper.CreateMap<Specialty, CustomerSpecialtyViewModel>();
Mapper.CreateMap<Customer, CustomerViewModel>()
  .ForMember(d => d.SpecialtyOfTypeOne, opt => opt.MapFrom(s => s.Specialties.Where(p => p.IdSpecType == SpecTypes.TypeOne)))
  .ForMember(d => d.SpecialtyOfTypeTwo, opt => opt.MapFrom(s => s.Specialties.Where(p => p.IdSpecType == SpecTypes.TypeTwo)))

如何在 CustomerSpecialtyViewModel 中包含子属性 SpecType.Name ，因为这是子属性？

CustomerSpecialtyViewModel
{
     int IdSpecialty => OK
     int IdSpecType => OK
     string SpecTypeName => Getting 'NULL' - Need this
}

更新我有两种类型的SpecType（一和二），但两者都有一个共同的属性（Name）。我只需要这个房产。我将在我的应用服务中检查内部的类型（一个或两个）。在View的上下文中，这无关紧要。

Answer 1

我认为这应该有效：

Mapper.CreateMap<Specialty, CustomerSpecialtyViewModel>()
    .ForMember(d => d.SpecTypeName, o => o.MapFrom(s => s.SpecialtyType.Name));

Automapper：嵌套属性w /过滤到Flattened ViewModel

1 个答案: