Vista - Can Xaml attach a custom attribute?

I am currentely developing a medical decision support system using WPF.
Because of the significant risk involved in our application, I am somewhat
fanatical about testing and code coverage, and am even getting fairly good
coverage of the UI code.

I would like to be able to exclude the small ammount og code generated by
the XAML compiler from the coverage analysis by applying a custom attribute
to each generated method so that NCover will know it should be ignored.

Is there a way to instruct the xaml parser to mark all its code in some way?

much appriciated

John Melville, MD