>Hi,
>
>I would like to try incorporating an AJAX into my ASP.NET application. I have a place in the application where user enters a code into a textbox. The application than checks if the entry exist in a table. This, obviously requires posting back of the page. My understanding of AJAX (and I know nothing about it) is that it would eliminate the page posting back and there would no not page refresh.
>
>Therefore, I would like to find an article that give an example of how to create an very simple "Hello World" type AJAX addition to my page (as a test). Or do I need to have a 3P tool or a framework in order to implement a simple AJAX?
>
>Thank you in advance for any suggestions.

Hi Dmitry,

In addition to Paul's response pick up some AJAX books. Say, AJAX in action. I looked through the couple of them, I think this one is OK.