2015-10-25 93 views
0

如何映射公共財產Source.Name私有財產Destination.Name使用Automapper。如何使用AutoMapper將某些財產映射到私有財產

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


public class Destination 
{ 
    private string Name { get; set; } 
} 
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[私人設置器AutoMapper映射屬性]的可能的複製(http://stackoverflow.com/questions/8355024/automapper-mapping-properties-with-private-setters) –

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它不是重複的,因爲整個財產不僅是私人的,而且是私人的。使用私人setter映射屬性很好,但如果整個屬性是私有的,我會收到一個異常。 – MaciejLisCK

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您是否閱讀過*全部*答案? –

回答

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嘗試使用此一:

Mapper.Initialize(cfg => 
      { 
      cfg.ShouldMapProperty = pi => pi.PropertyType.IsPublic || pi.PropertyType.IsNotPublic; 
     }); 
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不幸的是,它不能按預期工作。 – MaciejLisCK

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該解決方案創建假的lambda表達式。在這個例子中,它創建了(Destination) => Destination.Name lambda。

Mapper.CreateMap<Source, Destination>() 
    .ForMember(CreateMemberLambda<Destination>("Name"), mo => mo.MapFrom(sm => sm.Name)); 

var source = new Source() { Name = "foo" }; 
var destination = Mapper.Map<Destination>(source); 

public Expression<Func<T, object>> CreateMemberLambda<T>(string parameterName) 
{ 
    var type = typeof(T); 
    var bindFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic; 

    var parameter = type.GetProperty(parameterName, bindFlags); 
    var classExpression = Expression.Parameter(type, type.Name); 
    var memberAccessExpression = Expression.MakeMemberAccess(classExpression, parameter); 

    var lambda = Expression.Lambda<Func<T, object>>(memberAccessExpression, classExpression); 

    return lambda; 
}