There are many versions of AJAX, ATLAS is Microsoft's version.

"Atlas is Microsoft's codename for a set of extensions to ASP.NET for implementing Ajax functionality."
- Learn more: http://en.wikipedia.org/wiki/ATLAS_%28programming%29

"AJAX, shorthand for Asynchronous JavaScript and XML, is a Web development technique for creating interactive web applications. The intent is to make web pages feel more responsive by exchanging small amounts of data with the server behind the scenes, so that the entire web page does not have to be reloaded each time the user makes a change. This is meant to increase the web page's interactivity, speed, and usability."
- Learn more: http://en.wikipedia.org/wiki/AJAX

Drag-and-drop is possible for datagrids and most other components. See the following article: Dragging and dropping with ASP.NET 2.0 and Atlas: http://www.codeproject.com/Ajax/AtlasDragNDrop.asp

- Adam Kahtava [http://adam.kahtava.com]

Atlas only supports ASP.NET 2.0, that means it is not available in VS.NET 2003. Atlas leverages many of the changes that have been made in ASP.NET 2.0. Check out the link below, it sufficiently differentiates the two technologies - AJAX.NET and ATLAS
Useful links:-
http://ajax.sys-con.com/read/180953.htm

Yeah..That's fine..
But when we login to Orkut or GMail, it shows an icon of Loading and redirects to other page, Is there any functionality available in Atlas for this?
I mean, the page should be redirected without a postback?

Savan

Hi Savan / Anu
       As It was discussed in above posts, AJAX is a concept where the control(ie, usercontrol or custom control) gets binded without the page refresh. When we go for AJAX tech. all we need is to create our own custom controls from scratch(ie, rendering of controls etc.), then only we can use AJAX and trace their callbacks and bind the data. But Atlas in purely microsoft tech. where we can use it for the built in any Server Controls. Both these are used when we go for Project based solution. But as stated in the earlier posts, ( ie binding the value for check box using dropdown without refreshing ) these can be attained using the ICallbackEventHander interface in ASP.NET 2.0.

Gabi

Yeah...That's fine.
Using ICallbackEventHandler we can do it.But suppose I have more than one event in one page and I want some action for each of them.
For example, I want some action on Button click as well as Dropdown Index changed.
Can I do this using ICallBackEventHandler?

Savan