fluentvalidation

I'm trying to use Autofac to inject dependencies into FluentValidation in an MVC 4 app. I think I've got the strategy worked out, but I'm getting stuck with resolving my per-request ISomething from a singleton. Here's the scenario: I've got a validator that derives from FluentValidation's AbstractValidator. I've read that FluentValidation validators perform best as singletons, so my constructor expects a Func and stores that Factory for use later. When the validator is used, it should ask the stored factory for an IDataStore, get the instance created for that request and use it. That's the

I have this model public class Person { public int Id { get; set; } public string FirstName { get; set; } public string LastName { get; set; } } I want to create a validation where either FirstName or LastName must be filled in by user. I installed FluentValidation and created a customvalidator class public class PersonValidator:AbstractValidator<Person> { public PersonValidator() { RuleFor((person=>person.FirstName)//don't know how to check if one is empty } } To check just one field I could just do RuleFor(person => person.FirstName).NotNull(); But how do I check if one of them is null. Also

I have an MVC3 view model defined as: [Validator(typeof(AccountsValidator))] public class AccountViewModel { public List<string> Accounts { get; set; } } With the validation defined using FluentValidation (v3.3.1.0) as: public class AccountsValidator : AbstractValidator<AccountViewModel> { public AccountsValidator() { RuleFor(x => x.Accounts).SetCollectionValidator(new AccountValidator()); //This won't work } } And the account validation would possibly be defined: public class AccountValidator : AbstractValidator<string> { public OrderValidator() { RuleFor(x => x).NotNull(); //any other