Monday, March 11, 2013

ASP Introduction


An ASP file can contain text, HTML tags and scripts. Scripts in an ASP file are executed on the server.

What you should already know

Before you continue you should have some basic understanding of the following:
  • HTML / XHTML
  • A scripting language like JavaScript or VBScript
If you want to study these subjects first, find the tutorials on our Home page.

What is ASP?

  • ASP stands for Active Server Pages
  • ASP is a Microsoft Technology
  • ASP is a program that runs inside IIS
  • IIS stands for Internet Information Services
  • IIS comes as a free component with Windows 2000
  • IIS is also a part of the Windows NT 4.0 Option Pack
  • The Option Pack can be downloaded from Microsoft
  • PWS is a smaller - but fully functional - version of IIS
  • PWS can be found on your Windows 95/98 CD

ASP Compatibility

  • To run IIS you must have Windows NT 4.0 or later
  • To run PWS you must have Windows 95 or later
  • ChiliASP is a technology that runs ASP without Windows OS
  • InstantASP is another technology that runs ASP without Windows

What is an ASP File?

  • An ASP file is just the same as an HTML file
  • An ASP file can contain text, HTML, XML, and scripts
  • Scripts in an ASP file are executed on the server
  • An ASP file has the file extension ".asp"

How Does ASP Differ from HTML?

  • When a browser requests an HTML file, the server returns the file
  • When a browser requests an ASP file, IIS passes the request to the ASP engine. The ASP engine reads the ASP file, line by line, and executes the scripts in the file. Finally, the ASP file is returned to the browser as plain HTML

What can ASP do for you?

  • Dynamically edit, change, or add any content of a Web page
  • Respond to user queries or data submitted from HTML forms
  • Access any data or databases and return the results to a browser
  • Customize a Web page to make it more useful for individual users
  • The advantages of using ASP instead of CGI and Perl, are those of simplicity and speed
  • Provide security - since ASP code cannot be viewed from the browser
  • Clever ASP programming can minimize the network traffic
Note Note: Because ASP scripts are executed on the server, the browser that displays the ASP file does not need to support scripting at all!
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Easy Learning with "Show ASP"


This ASP tutorial contains more than 100 examples.
Our "Show ASP" tool makes it easy to learn ASP, it shows both the ASP source code and the HTML output of the code.

Example

<!DOCTYPE html>
<html>
<body>
<%
response.write("My first ASP script!")
%>
</body>
</html>

Show example »
Click on the "Show Example" button to see how it works.

ASP References

At W3Schools you will find complete ASP references about built-in objects and components, and their properties and methods.

ASP Examples

Learn by 100 examples! Because ASP scripts are executed on the server, you can not view ASP code in a browser, you will only see the output from ASP which is plain HTML. At W3Schools every example displays the hidden ASP code. This will make it easier for you to understand how it works.

ASP Quiz Test

Test your ASP skills at W3Schools!
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