How to conver ASCII to Hex using C#

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Neo
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How to conver ASCII to Hex using C#

Post by Neo » Fri Dec 20, 2013 1:40 pm

With this little program you can convert an ASCII string to Hex.

Code: Select all

private static string ConvertToHex(byte[] bytes)
{
	var builder = new StringBuilder();

	var hexCharacters = new[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

	for (var i = 0; i < bytes.Length; i++)
	{
		int firstValue = (bytes[i] >> 4) & 0x0F;
		int secondValue = bytes[i] & 0x0F;

		char firstCharacter = hexCharacters[firstValue];
		char secondCharacter = hexCharacters[secondValue];

		builder.Append("0x");
		builder.Append(firstCharacter);
		builder.Append(secondCharacter);
		builder.Append(' ');
	}

	return builder.ToString().Trim(' ');
}
Usage:

Code: Select all

string test = "1234";
ConvertToHex(Encoding.UTF8.GetBytes(test));
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