convert string to bytearray.

hi,
i used one method.
here is snippet code as following.

Code:

---

private byte[] HexStringToByteArray(string s)
private byte[] HexStringToByteArray(string s)
    {
      s = s.Replace(" ", "");
      byte[] buffer = new byte[s.Length / 2];
      for (int i = 0; i < s.Length; i += 2)
        buffer[i / 2] = (byte)Convert.ToByte(s.Substring(i, 2), 16);
      return buffer;
    }

---

but i can see some error when i writing string like "(5" as parameter.
so i tried to check this error and i'v got issue.
if parameter is number, it works but if it is character, it doesn't work.
how can i fix it?
how can i change this code?
regards.

You can use
Encoding.ASCII.GetBytes();

I'd use Encoding.UTF8.GetBytes() instead.

If the input is pure ASCII (the first 128 characters of the classic ASCII set) then UTF-8 and ASCII are identical.

However, if the input contains characters that are non-ASCII (such as will exist in pretty much every language -- even English may often use non-ASCII characters in loanwords, such as fiancée, naïve, etc.) your system can handle them all without an issue.


And to the original poster: that code above is converting a string that is supposed to be a hexadecimal number. For example, it would convert:

"F4327AB8D8F2" to the byte sequence {0xF4, 0x32, 0x7A, 0xB8, 0xD8 0xF2}

It's not made to convert any old string; it expects a string purely of hex characters.