CafeProject.GarsonGuncellemeEkrani.fncTcFormat C# (CSharp) Метод

        public static bool fncTcFormat(string tcKimlikNo)
        {
            bool returnvalue = false;
            if (tcKimlikNo.Length == 11)
            {
                Int64 ATCNO, BTCNO, TcNo;
                long C1, C2, C3, C4, C5, C6, C7, C8, C9, Q1, Q2;

                TcNo = Int64.Parse(tcKimlikNo);

                // bolu yuz islemi int tanimlanmis degiskende son 2 haneyi silmek icin kullanılır.

                ATCNO = TcNo / 100;
                BTCNO = TcNo / 100;

                C1 = ATCNO % 10; ATCNO = ATCNO / 10;
                C2 = ATCNO % 10; ATCNO = ATCNO / 10;
                C3 = ATCNO % 10; ATCNO = ATCNO / 10;
                C4 = ATCNO % 10; ATCNO = ATCNO / 10;
                C5 = ATCNO % 10; ATCNO = ATCNO / 10;
                C6 = ATCNO % 10; ATCNO = ATCNO / 10;
                C7 = ATCNO % 10; ATCNO = ATCNO / 10;
                C8 = ATCNO % 10; ATCNO = ATCNO / 10;
                C9 = ATCNO % 10; ATCNO = ATCNO / 10;
                Q1 = ((10 - ((((C1 + C3 + C5 + C7 + C9) * 3) + (C2 + C4 + C6 + C8)) % 10)) % 10);
                Q2 = ((10 - (((((C2 + C4 + C6 + C8) + Q1) * 3) + (C1 + C3 + C5 + C7 + C9)) % 10)) % 10);

                /*
                Q1 TC nosunun 10. hanesi
                Q2 TC nosunun 11. hanesi
                BTCNO son 2 hanesi olmayan tckimlikNo
                */

                returnvalue = ((BTCNO * 100) + (Q1 * 10) + Q2 == TcNo);
            }
            return returnvalue;
        }