Active
Server Pages
(ASPs) are Web pages that contain server-side scripts in addition to the
usual mixture of text and HTML (Hypertext Markup Language) tags. Server-side
scripts are special commands you put in Web pages that are processed before the
pages are sent from your Personal Web Server to the Web browser of someone who's
visiting your Web site. . When you type a URL in the Address box or click a link
on a Web page, you're asking a Web server on a computer somewhere to send a file
to the Web browser (sometimes called a "client") on your computer. If
that file is a normal HTML file, it looks exactly the same when your Web browser
receives it as it did before the Web server sent it. After receiving the file,
your Web browser displays its contents as a combination of text, images, and
sounds.
In the case of an Active Server Page, the process is
similar, except there's an extra processing step that takes place just before
the Web server sends the file. Before the Web server sends the Active Server
Page to the Web browser, it runs all server-side scripts contained in the page.
Some of these scripts display the current date, time, and other information.
Others process information the user has just typed into a form, such as a page
in the Web site's guestbook.
To distinguish them from normal HTML pages, Active
Server Pages are given the ".asp" extension.
There
are many things you can do with Active Server Pages.
The
appearance of an Active Server Page depends on who or what is viewing it. To the
Web browser that receives it, an Active Server Page looks just like a normal
HTML page. If a visitor to your Web site views the source code of an Active
Server Page, that's what they see: a normal HTML page. However, the file located
in the server looks very different. In addition to text and HTML tags, you
also see server-side scripts. This is what the Active Server Page looks like to
the Web server before it is processed and sent in response to a request.
Server-side
scripts look a lot like HTML tags. However, instead of starting and ending with
lesser-than ( < ) and greater-than ( > ) brackets, they typically start
with <% and end with %>. The <% is called an opening tag, and
the %> is called a closing tag. In between these tags are the
server-side scripts. You can insert server-side scripts anywhere in your Web
page--even inside HTML tags.
There's
a lot you can do with server-side scripts without learning how to program. For
this reason, much of the online Help for Active Server Pages is written for
people who are familiar with HTML but aren't computer programmers.
http://www.submitside.com/asp/
- a good tutorial for beginners.
Sites That Provide Definitions and other information about Active Server Pages: