jQuery C＃Web方法

Question

I have an application where I am making a call to a webmethod from Js.

 $.ajax({
    type: "POST",
    url: "mypage.aspx/MyWebMethod",
    ....
    ....
    });

In my C# webmethod I have set

[WebMethod(EnableSession = true)]

The problem is very strange and I donot even know if it is a Jquery or C# or server setting problem.

Problem: When I run the webpage and start using the application, everything working fine. However, if I just keep the webpage open (for something like 5 min) and donot do anything with it..and then try to use the application, the ajax call fails.

Can someone please let me know what the problem could be?

Answer 1

I strongly recommend you change this:

[WebMethod(EnableSession = true)]

To this:

HttpContext.Current.Session

That way you don't need to use (EnableSession = true) I tested my own and there is no problem

Good luck!

Answer 2

Its likely that the ASP Session is expiring, and you are getting an HTTP 401 or similar.

You can either handle the in your ajax error{} callback, or alternatively consider various workarounds for keeping the session alive in the background.