Working with byte array and strings

Question

I am working with byte arrays and strings. I have a byte array that I modify and then use to generate a string. I have looked at lots of posts on this website that recommend using BlockCopy or System.Text.Encoding.Default.GetString(); I have tried those but for some reason the string I am getting has all gibberish characters.

Here is the problem and what i expect. Lets say i have hex encoded string of bytes as follows:

string str = "f20bdba6ff29eed7b046d1df9fb70000";

Corresponding array is:

byte[] arrayStr = new byte[] { 0xf2, 0x0b, 0xdb, 0xa6, 0xff, 0x29, 0xee, 0xd7, 0xb0, 0x46, 0xd1, 0xdf, 0x9f, 0xb7, 0x00, 0x00 };

Please note that 2 characters in above string represent byte.

Now, lets say I manipulate arrayStr and change the byte at array index 4 (0xff) to (0xe1). I want that I should be able to get a string such that:

string str = "f20bdba6e129eed7b046d1df9fb70000";

Joel Coehoorn · Accepted Answer · 2014-02-18 22:21:47Z

1

Look at BitConverter:

string str = BitConverter.ToString(arrayStr).Replace("-", "");

answered Feb 18, 2014 at 22:21

Joel Coehoorn

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