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

You should be able to override the Validate method in your CustomerValidator class.

public class CustomerValidator: AbstractValidator 
{
    // constructor...

    public override ValidationResult Validate(Customer instance)
    {
        return instance == null 
            ? new ValidationResult(new [] { new ValidationFailure("Customer", "Customer cannot be null") }) 
            : base.Validate(instance);
    }
}