I am currently converting my app from Atlas CTP to ASP.net AJAX, I am having a few problems here and there...least of all intellisense doesn't work but the page builds and displays?? Wait to here from the ASP.net forums on that one...stay tuned!
A change from the CTP's, to call a web service through the MS AJAX library you need to add the....
[Microsoft.Web.Script.Services.ScriptService]
..to your web service class or add the Microsoft.Web.Script.Services namespace to your to the using statements.
e.g.
[Microsoft.Web.Script.Services.ScriptService]
public class [ClassName] : System.Web.Services.WebService
{
This is true for webservices that the Cascading Drop Down control uses too.
Note on the Cascading drop down control: I have found that for my page method to work correctly I need to have the code in the aspx file as appose to in the code behind file? This seems totally crazy and I'm sure I must be missing something. Again I wait to here from the forums...stay tuned.
Also, all your page methods now need to be static.
I will be posting more on this as I get all the problems ironed out.