internal bool IsValid()
{
return(PassportValidator.SimpleValidate(this) &&
PassportValidator.ValidateBYR(Extract("byr")) &&
PassportValidator.ValidateIYR(Extract("iyr")) &&
PassportValidator.ValidateEYR(Extract("eyr")) &&
PassportValidator.ValidateHeight(Extract("hgt")) &&
PassportValidator.ValidateHairColor(Extract("hcl")) &&
PassportValidator.ValidatePattern(Extract("ecl"), "^(amb|blu|brn|gry|grn|hzl|oth)$") &&
PassportValidator.ValidatePattern(Extract("pid"), @"\d{9}"));
}