AutoMapper.TypeMap.FindOrCreateSourceMemberConfigFor C# (CSharp) Метод

        public SourceMemberConfig FindOrCreateSourceMemberConfigFor(MemberInfo sourceMember)
        {
            var config = _sourceMemberConfigs.FirstOrDefault(smc => Equals(smc.SourceMember, sourceMember));

            if (config != null) return config;

            config = new SourceMemberConfig(sourceMember);
            _sourceMemberConfigs.Add(config);

            return config;
        }

 public SourceMappingExpression(TypeMap typeMap, MemberInfo sourceMember)
 {
     _sourcePropertyConfig = typeMap.FindOrCreateSourceMemberConfigFor(sourceMember);
 }