Q:

Extended Toolkit's NumericUpDown in hex output

I am using the Extended Toolkit for WPF. 
The NumericUpDown control is capable of inputting hex values, but I cannot see a method/property for showing values in hex format. 
There is a FormatString, but this contains thinks like currency, percentage, not hex format. 
The code in WPF I have now is:
<xctk:IntegerUpDown Value="{Binding Value}" 
     ParsingNumberStyle="HexNumber" FormatString="%X" Margin="4" />

A:

This worked:
    <xctk:IntegerUpDown ParsingNumberStyle="HexNumber" 
                        FormatString="X" 
                        VerticalAlignment="Center" 
                        HorizontalAlignment="Center" />

