Hex increment / loop till FFF

Question

I have an string which contains a hexadezimal number and i want to increment that hex number until i reach my max number (FFF). How can i loop through so i can get every number between my start hex and FFF?

I tried to convert the string in a byte array but got stuck after that.

string stringHex = "7A";
string binaryval = "";
binaryval = Convert.ToString(Convert.ToInt32(stringHex, 16), 2);
int numOfBytes = binaryval.Length / 8;
byte[] bytes = new byte[numOfBytes];

for (int i = 0; i < numOfBytes; ++i)
{
    bytes[i] = Convert.ToByte(binaryval.Substring(8 * i, 8), 2);
}

I need this to create a table which displays all those numbers.

Solution:

        string sHex = Convert.ToString(sIPv4.Split(':')[2]);

        for( int intFromHex = int.Parse(sHex, System.Globalization.NumberStyles.HexNumber);intFromHex <= 4095; intFromHex++)//4095 - FFF
        {
            string hexValue = intFromHex.ToString("X");
            //SQL INSERT
        }

Convert to `int` -> increment `int` -> convert to hex. – Sinatr Nov 26 '15 at 13:45 — Sinatr, Nov 26 '15 at 13:45
What do you mean by "*I want to increment that number*"? – Amit Nov 26 '15 at 13:47 — Amit, Nov 26 '15 at 13:47
why do you work with `int` insted of `bytes` ? – Slasko Nov 26 '15 at 13:50 — Slasko, Nov 26 '15 at 13:50
loop through, so i get 7A,7B,7C,... and so on – MaxW Nov 26 '15 at 13:50 — MaxW, Nov 26 '15 at 13:50

score 4 · Accepted Answer · answered Nov 26 '15 at 13:55

4

You can convert String to Int increment the Int and then convert it back to String(Hex)

string stringHex = "7A";

int intFromHex = int.Parse(stringHex , System.Globalization.NumberStyles.HexNumber) + 1;

string hexValue = intFromHex.ToString("X");

answered Nov 26 '15 at 13:55

Slasko

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Hex increment / loop till FFF

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