Automapper for MongoDB ObjectIds

gistfile1.cs

            Mapper.CreateMap<List<ObjectId>, List<string>>().ConvertUsing(o => o.Select(os => os.ToString()).ToList());
            Mapper.CreateMap<List<string>, List<ObjectId>>().ConvertUsing(o => o.Select(os => ObjectId.Parse(os)).ToList());
            Mapper.CreateMap<ObjectId, string>().ConvertUsing(o => o.ToString());
            Mapper.CreateMap<string, ObjectId>().ConvertUsing(s => ObjectId.Parse(s));

Hooray! Nice gist!

Thanks !

Newer Automapper versions no longer use the static CreateMap.
The new syntax:

var config = new MapperConfiguration(cfg =>
{
        cfg.CreateMap<List<ObjectId>, List<string>>().ConvertUsing(o => o.Select(os => os.ToString()).ToList());
        cfg.CreateMap<List<string>, List<ObjectId>>().ConvertUsing(o => o.Select(ObjectId.Parse).ToList());
        cfg.CreateMap<ObjectId, string>().ConvertUsing(o => o.ToString());
        cfg.CreateMap<string, ObjectId>().ConvertUsing(ObjectId.Parse);
});
var mapper = config.CreateMapper();