NumberStyles Enumeration - AllowHexSpecifier

This is from MSDN - http://msdn2.microsoft.com/en-us/library/system.globalization.numberstyles(vs.80).aspx and it works like described.  But I expected it to allow "0x". 

AllowHexSpecifier

Indicates that the numeric string represents a hexadecimal value. Valid hexadecimal values include the numeric digits 0-9 and the hexadecimal digits A-F and a-f. Hexadecimal values can be left-padded with zeros. Strings parsed using this style are not permitted to be prefixed with "0x".