1-digit hexadecimal convertion in c#?

Question

I would like to convert an Int32 in the range 0-15 into a the corresponding char in hexadecimal. One really dummy solution consists in writing

var hex = new[] {'0', '1', '2', '3', '4', '5', '6', '7', 
                 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
var myCharInHex = hex[myValue];

Yet, this solution looks plain wrong, any better suggestion?

if you are completely sure that your int is always in that range and you want a mapping of int->char I find your solution plain excellent :) — flq, Jun 08 '09 at 15:30
Duplicate of http://stackoverflow.com/questions/74148/how-to-convert-numbers-between-hex-and-decimal-in-c — Binary Worrier, Jun 08 '09 at 15:32

score 4 · Accepted Answer · answered Jun 08 '09 at 15:31

4

That works for your exact specification, but I'd personally do it as:

private static readonly char[] HexDigits = "0123456789abcdef".ToCharArray();

answered Jun 08 '09 at 15:31

Jon Skeet

score 1 · Answer 2 · answered Jun 08 '09 at 15:33

1

This simple code must work:

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

answered Jun 08 '09 at 15:33

tekBlues

2 Answers2