| Learn VB and ASP | |||||
| Part 2: The ASP Quote Picker | |||||
Let's look at a complete ASP page. The idea is to display a different quote every time someone accesses the page. In most cases, this would probably be done with a database, but if your needs are modest, you can get the same result with a simple VBScript 'CASE' statement.
Note that the script starts the same way that a normal HTML web page would. <HTML>, <HEAD>, <BODY>. So far, everything's pretty normal. Then you get this strange <html>
The next paragraph isn't nearly as straightforward. The ASP starts with the "<%" before "Randomize" and continues down to the first quote after "Case 0%>."
Notice that the ASP and the HTML are mixed together. This is a key concept. If you just sent this page to a browser "as is," the browser would ignore the ASP code statements. It would "see" all of the text in the quotes, however, and just string them together and display all of them. But when the server sees that this is an ASP file, it executes the ASP statements first and only one random quote gets sent to the browser as part of the HTML.
ASP is Microsoft's technology for adding programming power to web servers, but you can run it on most web servers anyway. If you run Unix, Linux, Solaris, even OS/390 … companies like Chilisoft (ironically, owned by Microsoft's arch-enemy, Sun) and Stryon supply software that also runs ASP.
In order to run ASP on a single computer, you need either IIS (which comes with Windows 2000 and XP Pro versions) or a free product from Microsoft called PWS (Personal Web Server). You can find specific instructions about PWS on the Microsoft web page here.
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