Passing a static readonly value as a CommandParameter via XAML binding?

Question

I have the following class defined:

public static class A
{
      public static readonly double MyWidth = 200d;
}

If I want to send "MyWidth" as a command parameter to a button, how do I set up the xaml for that?

<Button Caption="Large" CommandParameter="What should I type here?">

Thanks!

Answer 1

CommandParameter="{x:Static ns:A.MyWidth}"

where ns has been mapped to the appropriate CLR namespace.