コード例 #1
0
        public string Generate()
        {
            var nipNumberBuilder = new StringBuilder();

            string taxOfficePrefix = TaxOffice.Codes[_random.Next(TaxOffice.Codes.Length)];

            nipNumberBuilder.Append(taxOfficePrefix);

            nipNumberBuilder.Append(GenerateRandomNumbers(6));

            int checksum = NipCheckSumCalculator.Calculate(nipNumberBuilder.ToString());

            while (checksum == 10)
            {
                // change last number, check sum must be different from 10
                nipNumberBuilder.Remove(nipNumberBuilder.Length - 1, 1);
                nipNumberBuilder.Append(_random.Next(10).ToString());

                checksum = NipCheckSumCalculator.Calculate(nipNumberBuilder.ToString());
            }

            nipNumberBuilder.Append(checksum);

            return(nipNumberBuilder.ToString());
        }
コード例 #2
0
ファイル: NipValidator.cs プロジェクト: Jakku11/Krecik
        public static bool IsValid(string nip)
        {
            var regex = new Regex("^\\d{10}$");

            if (!regex.IsMatch(nip))
            {
                return(false);
            }

            int checkSum = NipCheckSumCalculator.Calculate(nip);

            if (nip.Last() - '0' != checkSum)
            {
                return(false);
            }

            return(TaxOffice.Codes.Contains(nip.Substring(0, 3)));
        }