DataSet to XMl and XML to Dataset

You could convert the byte array (ba, say) to a hex string and then save that in the XML file.

The code to do that and recover it again afterwards would be on these lines:

var sb = new System.Text.StringBuilder();

foreach(byte b in ba) sb.Append(b.ToString("x2"));

string s = sb.ToString();

// s can now be stored in an XML file

// to recover the byte array from a string s retrieved from the XML file

byte[] ba2 = new byte[s.Length/2];

for(int i = 0; i < s.Length - 1; i += 2)

{

ba2[i/2] = Convert.ToByte(s.Substring(i, 2), 16);

}