构造函数

AutoMapper可以将源成员映射的目标构造函数：

public class Source {
    public int Value { get; set; }
}
public class SourceDto {
    public SourceDto(int value) {
        _value = value;
    }
    private int _value;
    public int Value {
        get { return _value; }
    }
}
var configuration = new MapperConfiguration(cfg => cfg.CreateMap<Source, SourceDto>());

如果参数名不匹配：

public class Source {
    public int Value { get; set; }
}
public class SourceDto {
    public SourceDto(int valueParamSomeOtherName) {
        _value = valueParamSomeOtherName;
    }
    private int _value;
    public int Value {
        get { return _value; }
    }
}
var configuration = new MapperConfiguration(cfg =>
  cfg.CreateMap<Source, SourceDto>()
    .ForCtorParam("valueParamSomeOtherName", opt => opt.MapFrom(src => src.Value))
);

您还可以禁用构造函数映射：

var configuration = new MapperConfiguration(cfg => cfg.DisableConstructorMapping());

您可以配置将哪些构造函数用于目标对象：

// don't map private constructors
var configuration = new MapperConfiguration(cfg => cfg.ShouldUseConstructor = ci => !ci.IsPrivate);