C#, How to split a byte array by delimiter?

Question

I have a byte array that contains a collection of 2 byte hexadecimal numbers separated by ','. How could it be split by ',' and then the numbers be converted to integers?

The byte array contains values in ascii format.

edit: Example

My valid character range is 0 to 9 ,A to F and comma so my stream should look like

70, 67, 65, 57, 44, 55, 68, 66, 53, 44....

this would be equivalent to hexadecimal

FCA9 and 7DB5

Answer 1

If your byte array is truly ASCII encoded (ONE byte per character), then the following would work:

int[] ints = Encoding.ASCII.GetString(asciiEncodedBytes).Split(',')
             .Select(x => Convert.ToInt32(x,16)).ToArray();

This will handle mixed case and variable length hex numbers, too.

Answer 2

I would convert the byte array to string and then use String.Split(',')