Comments on: Sample C# code to convert Hexadecimal String to ASCII

By: Geek

Geek — Wed, 01 Jul 2009 20:03:55 +0000

This might cause problems if quotes itself (or some other special characters) are part of the string. A better way would be using bytes array and then using encoding to get string. For example i ran into an issue where this was the ascii result “I”ÊôL” but the hex value of 4994CAF44C would not translate into it using stringbuilder. Here’s my solution. Please let me know what you think. thx

private static string HexString2Ascii(string hexString)
{
byte[] tmp;
int j = 0;
tmp = new byte[(hexString.Length)/2];
for (int i = 0; i <= hexString.Length – 2; i += 2)
{
tmp[j] =(byte)Convert.ToChar(Int32.Parse(hexString.Substring(i, 2), System.Globalization.NumberStyles.HexNumber));

j++;
}
return Encoding.GetEncoding(1252).GetString(tmp);
}

By: sam

sam — Wed, 17 Jun 2009 20:36:38 +0000

thanks a lot

By: Crystel

Crystel — Wed, 28 Jan 2009 14:06:29 +0000

Hi,i need to convert the data “7820 6a75 6d70 6564 206f 7665 7220″ into ascii using c# ,how is it done, can anyone help,please.

By: kenny

kenny — Tue, 21 Oct 2008 09:03:28 +0000

hey it’s okay. the problem doesn’t lie with the stringbuilder. thanks for the code!

By: kenny

kenny — Tue, 21 Oct 2008 04:00:13 +0000

hi, would there be a better alternative other than stringbuilder? cos my hex string is very very very long. it would be best if it can build an unlimited amount.

By: Praveen

Praveen — Mon, 06 Oct 2008 18:06:10 +0000

Your Welcome!

By: Diego

Diego — Mon, 06 Oct 2008 17:49:10 +0000

Muito obrigado!