How to add new maps to an existing mapper with AutoMapper (not static)

[Gp]

bvbbbb

[Gp]

Let's suppose I have a mapper initialized somewhere in this way:

Mapper.Initialize(cfg => {
    cfg.CreateMap<Foo, Bar>();
    cfg.AddProfile<FooProfile>();
});

Is it possible to add new maps to it or to reinitialize it by adding new maps? For example:

Mapper.Initialize(cfg => {
    cfg.CreateMap<NewFoo, NewBar>();
    cfg.AddProfile<NewFooProfile>();
    // here I get the old maps and profiles
    cfg.CreateMaps(Mapper.GetOriginalMaps());      // ???
    cfg.AddProfiles(Mapper.GetOriginalProfiles()); // ???
});


Obviously I have not direct access to the original FooProfile and maps.

Another attempt I did without success is by using TypeMap:

var typeMap = Mapper.Instance.ConfigurationProvider.FindTypeMapFor<NewFoo, NewBar>();
if (typeMap != null) {
   // modify/extend it
  typeMap.ForMember(src => ...); ???
} else {
   // Add it to the current Mapper
   Mapper.Instance CreateMap<NewFoo, NewBar>().ForMember(..) ???
}

Please, help me!

Gp

[Jimmy Bogard]

Yes, you can do this in the latest MyGet build:

var cfg = new MapperConfigurationExpression();

cfg.CreateMap<Foo, Bar>();

cfg.AddProfile<FooProfile>();

var mapperConfig = new MapperConfiguration(cfg);

IMapper mapper = new Mapper(mapperConfig);

// later

cfg.CreateMap<NewFoo, NewBar>();

cfg.AddProfile<NewFooProfile>();

mapperConfig = new MapperConfiguration(cfg);

mapper = new Mapper(mapperConfig);

You can't do it with the static class, at the moment, but open a GitHub issue and we can track adding the Mapper.Initialize(cfg) way of doing things.

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[Gp]

Thank you very much.

> Yes, you can do this in the latest MyGet build:

So my understanding is that, now, with v. 4.2.1 I am not able to reach the goal, isn't it?

Last but not  least: what about TypeMap, can it work?

var typeMap = Mapper.Instance.ConfigurationProvider.FindTypeMapFor<NewFoo, NewBar>();
if (typeMap != null) {
   // modify/extend it
  typeMap.ForMember(src => ...); ???
} else {
   // Add it to the current Mapper

   Mapper.Instance.CreateMap<NewFoo, NewBar>().ForMember(..) ???
}
 
thanks, again
gp

[Jimmy Bogard]

No, because the type map does not exist. But you shouldn't need to check it, CreateMap is idempotent.