FluentValidation rule for null object

Question

I\'ve been trying to work out how to create a FluentValidation rule that checks if the instance of an object it\'s validating is not null, prior to validating it\'s properti

Answer 1

I inherited from the fluent AbstractValidator and created a NullReferenceAbstractValidator class instead:

public class NullReferenceAbstractValidator : AbstractValidator
{
    public override ValidationResult Validate(T instance)
    {
        return instance == null
            ? new ValidationResult(new[] { new ValidationFailure(instance.ToString(), "response cannot be null","Error") })
            : base.Validate(instance);
    }
}

and then inherited from that class with each validator that needed a null reference check:

public class UserValidator : NullReferenceAbstractValidator