Using Ajax we can communicate to server side ASP script without reloading the page. The basic front end of Ajax script is same but the server side script varies. Server side script can be PHP, ASP, Java or any other code. Here we will learn how to integrate Ajax code with ASP files.
You can learn the basic HTTPSML object used for Ajax here
The best use of Ajax is to integrate it with Database handling by ASP. Like this we can crate work on MSSQL tables and develop scripts like login forms, signup scripts, classified scripts etc.