It then
provides the resultant information to the presentation tier as a response to the original
request for the P/E analytic.
The presentation tier is typically server-side logic that provides the markup and/or
graphics that will get rendered in the browser. This can be anything from a C-based CGI
service that generates raw HTML to an advanced control-based ASP.NET server application.
In this case, the example will use a variety of technologies, from ASP.NET controls
that will render HTML that is generated by server-side C# code to advanced graphics
functionality that renders the time series chart (you can see these charts in Figure 10-1).
Finally, what appears to the user is the output of this presentation tier, which is a
document that contains HTML, graphics, JavaScript, style sheets, and anything else the
browser needs to render.
As you see how to construct the application, you??™ll see each of these tiers in a little
more detail.
CHAPTER 10 ?– BUILDING A SAMPLE APPLICATION USING ASP.NET AJAX 228
Creating the Application
As you saw in Figure 10-1, this application consists of a top header where the stock ticker
and company information is displayed, followed by three tabs in a TabContainer control
that host the extended quote information, price history, and Bollinger band analytic
charts.
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