http://msdn.microsoft.com/en-us/library/97af8hh4.aspx
Guid.ToString Method (String) The following table shows the accepted format specifiers for the format parameter. "0" represents a digit; hyphens ("-"), braces ("{", "}"), and parentheses ("(", ")") appear as shown.
00000000000000000000000000000000 00000000-0000-0000-0000-000000000000 {00000000-0000-0000-0000-000000000000} (00000000-0000-0000-0000-000000000000) {0x00000000,0x0000,0x0000,{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}} |
|