Bring up a project and put in a button below the line beginning with <form id=..... Replace the button text with Show Tuple Summary Values.
Now, switch to the Design view and double-click on the Show Tuple Summary Values button. This takes us into Default.aspx.cs. Delete the Page_Load block. The relevant portion of the starting code for this project should look like Figure 13.8.1:

Figure 13.8.1: The starting code section for this project