Hour 24. Sending E-Mail when a New Guestbook Entry Is Added

Over the past three hours, we planned for, designed, and tested an online guestbook application. The application was designed using the specifications outlined in Hour 21, “Devising a Plan for the Guestbook Application,” and consisted of two ASP.NET Web pages, AddEntry.aspx and ViewGuestbook.aspx.

Because the guestbook was designed and created according to the plan outlined in Hour 21, you might think that our job is done. In the real world, this is hardly ever the case. Once an application has been created and deployed, users invariably start itching for new features.

In this hour we'll examine adding two features to the guestbook application. The first involves having the e-mail address ...

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