Introducing ASP.NET Web Matrix
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Our aim is to add an additional column to our DataGrid so that we can select a particular title and view its author and book cover image. Also, add in a Textbox and Button control so that users can search for titles. The familiar ToolBox (adding controls) is available in ASP.NET Web Matrix.

Our page now looks like Figure 7.

Figure 7. Our modified page

Once the design of the page is done, you can now proceed to coding the application logic. At the bottom of the ASP.NET Web Matrix, you will find four tabs:

• Design: presents the layout of a page graphically.
• HTML: shows the HTML codes for the page.
• Code: shows only the codes for a page.
• All: shows the entire page containing the HTML codes and the application codes.

Figure 8. Different views layout

Since ASP.NET Web Matrix does not support code-behind, the four tabs present a useful view to the different aspects of a Web page. You can either double-click on a page in design view or click on the Code tab to display the codes.

Coding the Application Logic

Since you are consuming Amazon's Web service, you need to build a proxy class to access it. The ASP.NET Web Matrix provides a Web service proxy class generator (Tools- >WebService Proxy Generator):

Figure 9. Generating the proxy class using the WebService Proxy Generator

What we have done is actually copy the WSDL document provided by Amazon and save it into the local drive (accessed using the file:// protocol).

You can also access the WSDL document at: http://soap.amazon.com/schemas/AmazonWebServices.wsdl. (If you are behind a proxy server, be sure to configure the proxy server in your IE settings; do not use automatic configuration settings.)

Also note that the proxy class must be generated and saved in the same directory as your ASP.NET page.

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