protected void Application_Start() { AreaRegistration.RegisterAllAreas(); FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters); RouteConfig.RegisterRoutes(RouteTable.Routes); DataAnnotationsModelValidatorProvider validatorProvider = ModelValidatorProviders.Providers.OfType <DataAnnotationsModelValidatorProvider>().FirstOrDefault(); if (null != validatorProvider) { ModelValidatorProviders.Providers.Remove(validatorProvider); } ModelValidatorProviders.Providers.Add(new ParameterValidationModelValidatorProvider()); }