C# 如何使用AutoMapper映射两个对象集合

我尝试使用AutoMapper，但当我想映射2个集合时，我得到了一个错误。 以下是我想使用AutoMapper的实体和dto类：

public class HeadQuarters
{
    public int Id { get; private set; }
    public string HeadQuartersName { get; set; }
    public string HeadQuartersCode { get; set; }
    public string HeadQuartersDescription { get; set; }        
    public bool IsActiv { get; set; }
    public ICollection<Adresa> Adresa { get; set; }      
}

public class HeadQuartersDTO
{
    public string HeadQuartersName { get; set; }
    public string HeadQuartersCode { get; set; }
    public string HeadQuartersDescription { get; set; }
    public ICollection<AdresaDTO> Addresses { get; set; }        
    public EntityState Status { get; set; }
}

public static HeadQuarters DtoToEntity(HeadQuartersDTO dto)
{
    var mapper = new Mapper(MapperConfiguration());            
    return  mapper.Map<HeadQuarters>(dto);            
}

private static MapperConfiguration MapperConfiguration()
{
    return new MapperConfiguration(cfg =>
        cfg.CreateMap<HeadQuartersDTO, HeadQuarters>()
        .ForMember(dest => dest.Adresa, act => act.MapFrom(src => src.Addresses)));
}

我为使用AutoMapper编写以下代码：

public class HeadQuarters
{
    public int Id { get; private set; }
    public string HeadQuartersName { get; set; }
    public string HeadQuartersCode { get; set; }
    public string HeadQuartersDescription { get; set; }        
    public bool IsActiv { get; set; }
    public ICollection<Adresa> Adresa { get; set; }      
}

public class HeadQuartersDTO
{
    public string HeadQuartersName { get; set; }
    public string HeadQuartersCode { get; set; }
    public string HeadQuartersDescription { get; set; }
    public ICollection<AdresaDTO> Addresses { get; set; }        
    public EntityState Status { get; set; }
}

public static HeadQuarters DtoToEntity(HeadQuartersDTO dto)
{
    var mapper = new Mapper(MapperConfiguration());            
    return  mapper.Map<HeadQuarters>(dto);            
}

private static MapperConfiguration MapperConfiguration()
{
    return new MapperConfiguration(cfg =>
        cfg.CreateMap<HeadQuartersDTO, HeadQuarters>()
        .ForMember(dest => dest.Adresa, act => act.MapFrom(src => src.Addresses)));
}

公共静态总部dto实体（总部dto）
{
var mapper=new mapper（MapperConfiguration（））；
返回mapper.Map（dto）；
}
私有静态MapperConfiguration MapperConfiguration（）
{
返回新的MapperConfiguration（cfg=>
cfg.CreateMap（）
.ForMember（dest=>dest.Adresa，act=>act.MapFrom（src=>src.Addresses））；
}

但当我在集合中添加一些时，我得到了一个错误。这是我收到的错误消息：

---

如果我理解您的意图，您应该能够像下面这样更新代码：

public static HeadQuarters DtoToEntity(HeadQuartersDTO dto)
{
    var mapper = new Mapper(MapperConfiguration());            
    return  mapper.Map<HeadQuarters>(dto);            
}

private static MapperConfiguration MapperConfiguration()
{
    return new MapperConfiguration(cfg =>
        cfg.CreateMap<AdresaDTO, Adresa>()
            .ForMember(dest => dest.CityId, act => act.MapFrom(src => src.CityId ?? default(int)))
            .ForMember(dest => dest.HeadQuartersId, act => act.Ignore())
            .ForMember(dest => dest.EmployeeId, act => act.Ignore())
            .ForMember(dest => dest.ContractPersonDataId, act => act.Ignore());
        cfg.CreateMap<HeadQuartersDTO, HeadQuarters>()
            .ForMember(dest => dest.Id, act => act.Ignore())
            .ForMember(dest => dest.IsActiv, act => act.Ignore())
            .ForMember(dest => dest.Adresa, act => act.MapFrom(src => src.Addresses)));
}

公共静态总部dto实体（总部dto）
{
var mapper=new mapper（MapperConfiguration（））；
返回mapper.Map（dto）；
}
私有静态MapperConfiguration MapperConfiguration（）
{
返回新的MapperConfiguration（cfg=>
cfg.CreateMap（）
.ForMember（dest=>dest.CityId，act=>act.MapFrom（src=>src.CityId？？默认值（int）））
.FormMember（dest=>dest.HeadQuartersId，act=>act.Ignore（））
.ForMember（dest=>dest.EmployeeId，act=>act.Ignore（））
.FormMember（dest=>dest.ContractPersonDataId，act=>act.Ignore（））；
cfg.CreateMap（）
.FormMember（dest=>dest.Id，act=>act.Ignore（））
.FormMember（dest=>dest.IsActiv，act=>act.Ignore（））
.ForMember（dest=>dest.Adresa，act=>act.MapFrom（src=>src.Addresses））；
}

请将您的问题包含在您收到的完整错误消息中。您收到的错误是什么？您需要添加配置以处理到IsActiv和Id属性的映射。此外，您需要配置从AdresaDTO到Adresa的映射。如果您演示了如何映射这些内容，我可以演示如何正确配置AutoMapper。