In the book, there is a button on the ManageCategories page which allows the user to redirect to the ManageArticles page where all of the articles for the respective category will be shown. The code for this button is:



But, there is nothing on the ManageArticles page to process this ID in the querystring. As a matter of fact, the only thing on the ManageArticles page is an ArticeListing control, which provides no way to designate the Category, even if the ManageArticles page determined what the ID in the querystring was and tried to pass it along.

Am I missing something or misinterpreting the code somehow?

You are forgetting that "manageArticles.aspx" loads a usercontrol: "articlelisting.ascx"

In this user control, on pageLoad you have the code for querystring!

Aaaahhh. I was thinking it'd be the page's responsibility to analyze the querystring and inform the user control, but that makes total sense.

Thanks. :)