ValidationFailure should be aware of it's RuleSet

Is your feature request related to a problem? Please describe. When a ValidationFailure is constructed, it should be aware of the RuleSet name that it came from.

Describe the solution you’d like Please add the following to ValidationFailure

public string RuleSet { get; }

Describe alternatives you’ve considered I’ve attempted to foreach all of my rulesets, but unfortunately I don’t even see the validation failure when I do this.

var failures = new Dictionary<string, ValidationResult>();

foreach (var ruleSet in _ruleSets)
{
    var result = await _validator.ValidateAsync(self, opts => opts.IncludeRuleSets(ruleSet));
    failures[ruleSet] = result; // unfortunately this is always IsValid = true;
    isValid = isValid && result.Errors.All(x => x.Severity != Severity.Error);
}

Additional context Effectively I need to emit out validation failures based on the grouping of validation. In other words, a particular segment of my overall object can be valid or invalid based on a RuleSet.

[JeremySkinner]

@ChaseFlorell Yes that’s correct, custom state is always per-validator, it’s not shared between the whole rule chain. However you can add an extension method that would apply it the whole chain quite easily:

public static IRuleBuilderOptions<T, TProperty> RuleState<T, TProperty>(this IRuleBuilderOptions<T, TProperty> rule, Func<T, object> stateProvider) {
	var wrapper = new Func<PropertyValidatorContext, object>(ctx => stateProvider((T) ctx.InstanceToValidate));
	return rule.Configure(config => {
		foreach (var validator in config.Validators) {
			validator.Options.CustomStateProvider = wrapper;
		}
	});
}

Then you can call:

RuleFor(x => x.Email).EmailAddress().NotNull().RuleState(_ => "Email");

It must be the last method in the chain, as it’ll only apply to any validators that precede it.

[JeremySkinner]

An individual rule can actually be part of multiple rulesets, so this will probably be an array of strings rather than a single string.