The code on p. 23 have some differences from downloaded code (the web-enabled version).
List is now BindingList.

The end of the "Try" is different - there is a Finally.

Don't know if it is of any relevance now or later, but ....

Yours
Langerod

Hi Langerod,

Thanks for your feedback. Of course, it's always difficult to keep a printed book in sync with an online component, particularly when the two are created and published by different authors. We tried to leave the code to do with anything online as late as possible to ensure we got the most accurate reflection of the current state of play but sometimes things like this might occur.

Fortunately, neither change is problematic and people should have no problem in following along with the text.

Thanks again
Andrew