如何使用Automapper将类映射到子类? [英] How to map a class to a subclass with Automapper?

问题描述

如果我有课:

public class MainClass
{
   public string StringA {get; set;}
   public string StringB {get; set;}
   public string StringC {get; set;}
   public string Candy {get; set; }
}

现在我想将其映射到另一个类

Now I want to map that to another class

public class NewClass
{
   public string StringA {get; set;}
   public string StringB {get; set;}
   public string StringC {get; set;}
   public CandyObj Candy {get; set; }
}

而CandyObj就是:

and CandyObj is simply:

public class CandyObj 
{
   public string CandyID {get; set;}
   public string CandyName {get; set;}
}

如何处理NewClass中CandyObj的映射?

How can I handle the mapping of the CandyObj in the NewClass?

我尝试过这条路线:

    var config = new MapperConfiguration(c =>
    {
        c.CreateMap<MainClass, NewClass>()
            .ForMember(x => x.Candy.CandyID, m => m.MapFrom(a => a.Candy))
            .ForMember(x => x.Candy.CandyName, m => m.MapFrom(a => a.Candy));
    });

但是我得到表达式'x => x.Candy.CandyID'必须解析为顶级成员，而不是任何子对象的属性."

But I get "Expression 'x => x.Candy.CandyID' must resolve to top-level member and not any child object's properties."

我对AutoMapper还是很陌生，因此任何指导都将不胜感激.

I'm still new to AutoMapper so any guidance would be appreciated.

推荐答案

我发现我可以做到这一点:

I found out I can accomplish by doing this:

        c.CreateMap<MainClass, NewClass>()
            .ForMember(x => x.Candy,
                       opts => opts.MapFrom(
                           src => new CandyObj
                           {
                               CandyID = src.Candy,
                               CandyName = src.Candy
                           }
                       ));  

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