AutoMapper issue

Trying to automap some objects.
Source objects has properties with _ before name, destination objects – have not.
Is it possible to implement ONE map creation, that automapper would map all _properties to properties
for all source types.

class MyMapper<TFrom, TTo>{
    TTo PerformMap(TFrom fromObject){
        Mapper.CreateMap<From, To>(); // ???
        TTo result = Mapper.Map<From, To>(fromObject);
        //result.Id.ShouldBe(value from TFrom._Id);
        return result;
    }
}

class From
{
    public int _Id { get; set; }
    public string _Name { get; set; }
}

class To
{
    public int Id { get; set; }
    public string Name { get; set; }
}

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

Something I added recently to AutoMapper might help you – custom naming conventions. If you check out the trunk (R107), look around for INamingConvention. Right now, I have two naming conventions (PascalCase and lower_case_underscore), but it’s really just a matter of figuring out the right RegEx to get you going:

INamingConvention.cs

Right now, naming conventions are global and profile-scoped. Since this feature is new, there isn’t any documentation other than the tests.

Method 2

This is how I’m doing it

Mapper.Initialize(cfg =>
        {
            cfg.RecognizeDestinationPrefixes(new []{"_"});
            cfg.RecognizePrefixes(new[] { "_" });

            cfg.CreateMap<To, From>().ReverseMap();
        });

Method 3

For this you could add a custom mapping to solve this particular case:

Mapper.CreateMap<From, To>()
   .ForMember( dest => dest.Id, opt => opt.MapFrom( src => src._Id ) )
   .ForMember( dest => dest.Name, opt => opt.MapFrom( src => src._Name ) );

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0