How to change byte[] to hex?

Question

Possible Duplicates:
How do you convert Byte Array to Hexadecimal String, and vice versa, in C#?
C# byte[] to hex string

I need to take this:

byte[] data = new byte[] { 1, 2, 3, 4 }

And turn it into something like this:

0x01020304

What is the best way to do this in C#?

See this: http://stackoverflow.com/questions/623104/c-byte-to-hex-string — Katie Kilian, Jun 03 '11 at 16:00
Forgive me for the duplicate. I must lack the knowledge needed to understand this. I didn't see any of the other questions show how to put it in "0x01020304" format. Did I miss that anywhere? — Michael Hedgpeth, Jun 03 '11 at 19:56

mdm · Answer 1 · 2011-06-03T16:06:47.370

1

For a single value:

String.Format("{0:X2}", value);

Depending on what the array represents you can then do some string concatenating to put all the bits together.

edited Jun 03 '11 at 16:06

answered Jun 03 '11 at 16:00

mdm

score 1 · Answer 2 · answered Jun 03 '11 at 16:03

1

StringBuilder sb = new StringBuilder(ba.Length * 2);
foreach (byte b in ba)
{
       sb.AppendFormat("{0:x2}", b)
}
return sb.ToString();

answered Jun 03 '11 at 16:03

Shahin

2 Answers2