Dapper fluent map doesn't change name of my column

Question

I have installed Dapper extension + fluentmapper for customing my own columns. I have followed examples but nothing, the name of my column doesn't change.

I'm doing repository.

Models :

public class AppareilsReparations
    {
        public string reference_aff { get; set; }
    }

Mapper :

public class AppareilsReparationsMapper: EntityMap<AppareilsReparations>
    {
        public AppareilsReparationsMapper()
        {
            Map(p => p.reference_aff).ToColumn("Num_dossier");
        }
    }

AppareilsReparationsRepository.cs :

public AppareilsReparations GetSingleAppareilsReparationsByRef(string ref_sav)
        {
            try
            {      
               // List<Droits> droit_utilisateur = GetDroits("admin");              
                return db.Query<AppareilsReparations>
                       ("select reference_aff from v_appareils_reparations where ref_sav_client =@ref_sav", new { ref_sav }).SingleOrDefault();
            }
            catch (SqlException sql)
            {
                Console.WriteLine(sql.ToString());
                return null;
            }
        }

AppareilsReparationsController.cs :

public AppareilsReparations GetSingleAppareilsReparations(string ref_sav)
        {
            return _arp.GetSingleAppareilsReparationsByRef(ref_sav);
        }

And i have initialized in my Global.asax

   FluentMapper.Initialize(config =>
            {
                config.AddMap(new Mapper.AppareilsReparationsMapper());
            });

Answer 1

someone have an idea about my problem ?