[RESOLVED] 8 bit strings Encoding issue

[Saeed]

This is a unit test to ensure 8 bit data (00-FF) can be placed in an string moved to a byte array and vice versa and nothing is lost in this conversion.

it seems that base64String does not seem to be able to hold the correct 8 bit data and as a result content of dest and fileblock1 wont match.


What improper encoding am i doing wrong?

            string filename;
            FileInfo ff;
            FileStream fss;
            BinaryReader br;

            filename = textBox1.Text;
            ff = new FileInfo(filename);
            byte[] FileBlock1 = new byte[ff.Length];
            fss = new FileStream(filename, FileMode.Open);
            br = new BinaryReader(fss);
            br.Read(FileBlock1, 0, (int)ff.Length);
            fss.Close();

// file block shows the correct data in the file

string base64String = null;
int position = -1;

System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
base64String = System.Convert.ToBase64String(FileBlock1, 0, FileBlock1.Length);
byte[] dest = new byte[FileBlock1.Length];
Array.Copy(encoding.GetBytes(base64String), dest, FileBlock1.Length);
                if (ByteArrayCompare(dest, FileBlock1, ref position))
                {
                    textBox2.Text += "matched\r\n";
                }
                else
                {
                    textBox2.Text += "DID not matched .position" + position.ToString() + "\r\n"; ;
                }