C＃：AutoAapper定义通过Web APi 2运行-不会忽略collection元素

我在EF和Web API 2中使用了AutoMapper。命令

tempValue = Mapper.Map<MwbePaymentMethodDtoInOut>(res);

似乎不起作用。结果对象应该是没有Payments元素的对象，因为AutoMapper定义会忽略它（行：.ForSourceMember（src => src.Payments，opt => opt.Ignore（）））。

Global.asax

Namespace MobileWallet.Api
{
    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            StartAutomapper();            
        }



        private void StartAutomapper(){
            Mapper.Initialize(cfg =>
            {                
                AutoMapperConfiguration.Configure();
            });
        }    
    }
}

AutoMapper定义

public class MwbeToDomain : Profile
{
    public override string ProfileName
    {
        get
        {
            return "MwbeToDomainMapping";
        }
    }
    protected override void Configure() 
    {            
        CreateMap<MwbePaymentMethod, MwbePaymentMethodDtoInOut>()
                .ForMember(dest => dest.methodType, opt => opt.ResolveUsing<EnumToStringResolver<MwbePaymentMethod.MethodTypeEnum>>().FromMember(source => source.MethodType))
                .ForMember(dest => dest.BillingAddress, opt => opt.MapFrom(source => source.BillingAddress))
                .ForSourceMember(source => source.UserData, opt => opt.Ignore())
                .ForMember(dest => dest.expirationdate, opt => opt.ResolveUsing<DateTimeToString>().FromMember(source => source.ExpirationDate))
                .ForSourceMember(src => src.Payments, opt => opt.Ignore())
                .ForSourceMember(src => src.Number, opt => opt.Ignore());
    }
}

我的代码有什么问题？

添加：

我在设置配置后立即添加了AutoMapper验证：

private void StartAutomapper(){

            //Mapper.AssertConfigurationIsValid();
            Mapper.Initialize(cfg =>
            {                
                AutoMapperConfiguration.Configure();
            });

            Mapper.AssertConfigurationIsValid();
        }

验证码由应用程序启动，但未显示任何错误。