Question

Well, I got my HexString (PacketS) for example “70340A0100000000000000” I want to split every time after 2 chars and put it into an byte array (Stream).

Means {70, 34, 0A, 01, 00, 00, 00, 00, 00, 00, 00}

Answer 1

This actually worked perfect! I am sorry if your code does the same but I just do not understand.

public static byte[] ConvertHexStringToByteArray(string hexString)
        {
            if (hexString.Length % 2 != 0)
            {
                throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The binary key cannot have an odd number of digits: {0}", hexString));
            }

            byte[] HexAsBytes = new byte[hexString.Length / 2];
            for (int index = 0; index < HexAsBytes.Length; index++)
            {
                string byteValue = hexString.Substring(index * 2, 2);
                HexAsBytes[index] = byte.Parse(byteValue, NumberStyles.HexNumber, CultureInfo.InvariantCulture);
            }

            return HexAsBytes;