I am reading a text file using TextReader reader = new
StreamReader("file.txt"); like I have done many a times before. I then
execute the statement string a = reader.ReadToEnd(); this string is then
sent into a function to convert its contents (hex string) into a byte array.
Well when this pass occurs the HextoByteArray function says the input is in
an invalid format. I think for somereason there is some whitespace/null
character at the end of the file that is getting read in. To debug I
manually sent the string into the function and it worked fine, so it is
somethign with my reading of the file.

Thanks