AutoMapper: setup member name matching convention

Question

I tried setting up a member name mapping convention so that the source members ending with a "Id" are mapped to destination members without Id. For example

UserId -> User

How does one do this? I tried using SourceMemberNameTransformer without success. Also tried using RecognizePostfixes().

    this.SourceMemberNameTransformer = s =>
                                      {     
                                          return s.Replace("Id", string.Empty);
                                      };

Answer 1

This should to work:

this.SourceMemberNameTransformer = s =>
          {
              if (s.EndsWith("Id"))
                  return s.Substring(0, s.Length - 2);               
              return s;
          };

You also can try achieve that with DestinationMemberNamingConvention and regex.

Answer 2

You can also use the "RecognizePostfixes" method:

this.RecognizePostfixes("Id");

The built-in transformer is this, just for future reference:

s => Regex.Replace(s, "(?:^Get)?(.*)", "$1");

Answer 3

As of now this does not seem to work when setting it in the Profile. Neither SourceMemberNameTransofmer or RecognizePostfix work in Profile. However is specified in Automapper global configuration it works fine.