AJAX with PageMethods works in Application Pages but not with PageLayouts

Question

Hi All,
I have created a class which contains public static method decorated with WebMethod and SciptMethod attributes
Public class BasePage : Microsoft.SharePoint.Publishing.PublishingLayoutPage
        [WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = false)]
        public static string HelloWorld()
            return "Hello world is working!";
Now I changed the <%Page ..> Tag of the PageLayout to inherit from the above class.
There is a ScriptManager in the master page with EnablePageMethods = true
I can see the Javascript methods are generated for HelloWorld(..) however the return result is "The Server Method HelloWorld failed." Error code is 500
However the exact same code when I use with a application page (_layouts) and change the Page tag to inherit from the same base class above - it works OK.
Both of them Page Layout and Application Page use the same master page - but one works and other does not.
Additional Information:
a) Am using Jquery and JqueryUI in the master page.
b) Site use Publishing Template
c) Variation is enabled on site
d) Site has both Anonymous and Windows NT authentication
The method Path for Application page shows as
/_layouts/test.aspx/HelloWorld
and for the page created using the Page layout is:
/en-us/Company/Pages/Default.aspx/HelloWorld.
Could anyone please advise what could be wrong where it does not work with Publishing Pages?
Would please appreciate ideas / thoughts.
Thanks,
Mohan
-- Mohan | My Blog

Answer 1

Are you sure that you are getting HTTP 500 error ?. Usually HTTP 500 error denotes service unavailable at the server side or at the server end point. What is the exact fiddler trace you are getting ?
If it is still HTTP 500, then one of the referenced components in the page layouts conflicts the ajax page methods call. Please let me know your findings
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