Pro ASP.NET 3.5 Server Controls and AJAX Components

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Rob Cameron and Dale Michalk

"Pro ASP.NET 3.5 Server Controls and AJAX Components"

aspx page and providing
the missing method and action properties to ensure the page is always sent back to the
original URL via an HTTP POST. The form server control looks like the following in the
ControlsBook2MasterPage.master master page at design time:

There isn??™t a form server control in HelloWorld.aspx, because it is a content page that
renders within a master page, which is where the HTML form exists. At runtime in the browser,
the generated HTML has this tag:

The HtmlForm server control renders HTML with all the necessary information to post the
page back to itself, as shown in the preceding line of code. This allows each control on the page
to remember its previous state via the ViewState mechanism and raise the appropriate server
control event.
The literal controls have the responsibility for rendering the generic text and HTML tags in
the web form without much of a server-side presence. These are the flyweight classes of the
ASP.NET server control framework. The literal controls pick up text or tags in the master page
or .aspx page that do not have the runat="server" attribute identifying them as a server control.

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Rob Cameron and Dale Michalk

"Pro ASP.NET 3.5 Server Controls and AJAX Components"