[英]AutoMapper: What is the difference between ForMember() and ForPath()?
I am reading AutoMapper's ReverseMap()
and I can not understand the difference between ForMember()
and ForPath()
.我正在阅读 AutoMapper 的
ReverseMap()
并且我无法理解ForMember()
和ForPath()
之间的区别。 Implementations was described here . 此处描述了实现。 In my experience I achieved with
ForMember()
.根据我的经验,我使用
ForMember()
实现了。
See the following code where I have configured reverse mapping:请参阅以下代码,其中我配置了反向映射:
public class Customer
{
public string Surname { get; set; }
public string Name { get; set; }
public int Age { get; set; }
}
public class CustomerDto
{
public string CustomerName { get; set; }
public int Age { get; set; }
}
static void Main(string[] args)
{
Mapper.Initialize(cfg =>
{
cfg.CreateMap<Customer, CustomerDto>()
.ForMember(dist => dist.CustomerName, opt => opt.MapFrom(src => $"{src.Surname} {src.Name}"))
.ReverseMap()
.ForMember(dist => dist.Surname, opt => opt.MapFrom(src => src.CustomerName.Split(' ')[0]))
.ForMember(dist => dist.Name, opt => opt.MapFrom(src => src.CustomerName.Split(' ')[1]));
});
// mapping Customer -> CustomerDto
//...
//
// mapping CustomerDto -> Customer
var customerDto = new CustomerDto
{
CustomerName = "Shakhabov Adam",
Age = 31
};
var newCustomer = Mapper.Map<CustomerDto, Customer>(customerDto);
}
It is working.它正在工作。
Do ForMember
and ForPath
the same things or when should I use ForPath()
over ForMember()
? ForMember
和ForPath
是否相同,或者我什么时候应该使用ForPath()
不是ForMember()
?
In this case, to avoid inconsistencies, ForPath
is translated internally to ForMember
.在这种情况下,为了避免不一致,
ForPath
在内部被转换为ForMember
。 Although what @IvanStoev says makes sense, another way to look at it is that ForPath
is a subset of ForMember
.虽然什么@IvanStoev说是有道理的,另一种方式来看待它是
ForPath
的一个子集ForMember
。 Because you can do more things in ForMember
.因为你可以在
ForMember
做更多的事情。 So when you have a member, use ForMember
and when you have a path, use ForPath
:)因此,当您有成员时,请使用
ForMember
,当您有路径时,请使用ForPath
:)
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