尝试映射嵌套对象时出现Automapper错误 [英] Getting Automapper error when trying to map nested objects

问题描述

我有一个Box对象，其中嵌套了一个SerialNumber对象的列表.我试图将每个Box中每个SerialNumber的SerialNumberName属性映射到名为BoxedElectrodesModel的模型.

这是我的Box类及其嵌套的SerialNumber类:

public partial class Box
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public Box()
    {
        this.SerialNumbers = new HashSet<SerialNumber>();
    }

    public int BoxID { get; set; }
    public System.DateTime DateCreated { get; set; }
    public Nullable<System.DateTime> DateShipped { get; set; }
    public string TrackingNumber { get; set; }
    public Nullable<System.DateTime> DateReceived { get; set; }
    public bool Active { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<SerialNumber> SerialNumbers { get; set; }
}

public partial class SerialNumber
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public SerialNumber()
    {
        this.Comments = new HashSet<Comment>();
        this.WIPHistories = new HashSet<WIPHistory>();
    }

    public int SerialNumberID { get; set; }
    public int IncomingLotID { get; set; }
    public string SerialNumber1 { get; set; }
    public string LamPurchaseOrder { get; set; }
    public string LamLineNumber { get; set; }
    public bool Refurbished { get; set; }
    public int WIPLocationID { get; set; }
    public int StatusID { get; set; }
    public int RouteSectionStepID { get; set; }
    public Nullable<int> RejectCategoryID { get; set; }
    public Nullable<int> BoxID { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Comment> Comments { get; set; }
    public virtual IncomingLot IncomingLot { get; set; }
    public virtual RejectCategory RejectCategory { get; set; }
    public virtual Status Status { get; set; }
    public virtual WIPLocation WIPLocation { get; set; }
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<WIPHistory> WIPHistories { get; set; }
    public virtual Box Box { get; set; }
    public virtual RouteSectionStep RouteSectionStep { get; set; }
}

...这是我的'BoxedElectrodesRowModel'类及其嵌套的SerialNumberModel类:

public class BoxedElectrodesRowModel
{
    public int BoxId { get; set; }
    public List<SerialNumberModel> SerialNumbers { get; set; }
    public Nullable<System.DateTime> DateCreated { get; set; }
}

public class SerialNumberModel
{
    public string Name { get; set; }
}

这是我的AutoMapper代码:

            c.CreateMap<Box, BoxedElectrodesRowModel>()
                .ForMember(dest => dest.BoxId, opts => opts.MapFrom(src => src.BoxID))
                .ForMember(dest => dest.SerialNumbers.Select(sn => sn.Name), opts => opts.MapFrom(src => src.SerialNumbers.Select(t => t.SerialNumberName)))
                .ForMember(dest => dest.DateCreated, opts => opts.MapFrom(src => src.DateCreated));

这是我的错误消息:

仅对顶级成员支持成员的自定义配置 类型上的单个成员."

我认为问题与以下事实有关:我试图将Box> SerialNumbers中的嵌套属性SerialNumberName映射到BoxedElectrodesRowModel> SerialNumbers.

我该如何解决这个问题?

解决方案

首先尝试映射项SerialNumber和SerialNumberModel，然后AutoMapper在从一个列表映射到另一个列表时将使用该映射.

>

Mapper.Initialize( cfg =>
{
   cfg.CreateMap<SerialNumber, SerialNumberModel>()
      .ForMember( dest => dest.Name, opts => opts.MapFrom(src => src.SerialNumberName));
   cfg.CreateMap<Box, BoxedElectrodesRowModel>()
      .ForMember( dest => dest.BoxId, opts => opts.MapFrom( src => src.BoxID ) )
      .ForMember( dest => dest.DateCreated, opts => opts.MapFrom( src => src.DateCreated ) );
} );

I have a Box object which has a list of SerialNumber objects nested within it. I'm trying to map the SerialNumberName property of each SerialNumber in each Box to a model called BoxedElectrodesModel.

Here is my Box class and its nested SerialNumber class:

public partial class Box
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public Box()
    {
        this.SerialNumbers = new HashSet<SerialNumber>();
    }

    public int BoxID { get; set; }
    public System.DateTime DateCreated { get; set; }
    public Nullable<System.DateTime> DateShipped { get; set; }
    public string TrackingNumber { get; set; }
    public Nullable<System.DateTime> DateReceived { get; set; }
    public bool Active { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<SerialNumber> SerialNumbers { get; set; }
}

public partial class SerialNumber
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public SerialNumber()
    {
        this.Comments = new HashSet<Comment>();
        this.WIPHistories = new HashSet<WIPHistory>();
    }

    public int SerialNumberID { get; set; }
    public int IncomingLotID { get; set; }
    public string SerialNumber1 { get; set; }
    public string LamPurchaseOrder { get; set; }
    public string LamLineNumber { get; set; }
    public bool Refurbished { get; set; }
    public int WIPLocationID { get; set; }
    public int StatusID { get; set; }
    public int RouteSectionStepID { get; set; }
    public Nullable<int> RejectCategoryID { get; set; }
    public Nullable<int> BoxID { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<Comment> Comments { get; set; }
    public virtual IncomingLot IncomingLot { get; set; }
    public virtual RejectCategory RejectCategory { get; set; }
    public virtual Status Status { get; set; }
    public virtual WIPLocation WIPLocation { get; set; }
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<WIPHistory> WIPHistories { get; set; }
    public virtual Box Box { get; set; }
    public virtual RouteSectionStep RouteSectionStep { get; set; }
}

...and here is my 'BoxedElectrodesRowModel' class and its nested SerialNumberModel class:

public class BoxedElectrodesRowModel
{
    public int BoxId { get; set; }
    public List<SerialNumberModel> SerialNumbers { get; set; }
    public Nullable<System.DateTime> DateCreated { get; set; }
}

public class SerialNumberModel
{
    public string Name { get; set; }
}

Here's my AutoMapper code:

            c.CreateMap<Box, BoxedElectrodesRowModel>()
                .ForMember(dest => dest.BoxId, opts => opts.MapFrom(src => src.BoxID))
                .ForMember(dest => dest.SerialNumbers.Select(sn => sn.Name), opts => opts.MapFrom(src => src.SerialNumbers.Select(t => t.SerialNumberName)))
                .ForMember(dest => dest.DateCreated, opts => opts.MapFrom(src => src.DateCreated));

And here is my error message:

"Custom configuration for members is only supported for top-level individual members on a type."

The problem, I think, has something to do with the fact that I'm trying to map the nested property SerialNumberName from Box > SerialNumbers to the nested property Name from BoxedElectrodesRowModel > SerialNumbers.

How do I go about fixing this?

解决方案

Try to map the the items SerialNumber and SerialNumberModel firstly and then AutoMapper will use that mapping when it is mapping from one list to another.

Mapper.Initialize( cfg =>
{
   cfg.CreateMap<SerialNumber, SerialNumberModel>()
      .ForMember( dest => dest.Name, opts => opts.MapFrom(src => src.SerialNumberName));
   cfg.CreateMap<Box, BoxedElectrodesRowModel>()
      .ForMember( dest => dest.BoxId, opts => opts.MapFrom( src => src.BoxID ) )
      .ForMember( dest => dest.DateCreated, opts => opts.MapFrom( src => src.DateCreated ) );
} );

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