I discovered this by creating the application again from scratch thanks to this other site: http://blogs.msdn.com/b/webdev/archive/2013/12/19/building-a-basic-web-forms-application-using-visual-studio-2013.aspx . By following each step carefully and experimenting with the code I realized that when I added the friendly urls framework and enabled Bundling and Minification my jquery ajax call failed. This allowed me ask the correct question to google and I found out that the problem lied in the following files:
1) ~/App_Start/RouteConfig.cs.
The followint line of code in this file must be changed:
From: settings.AutoRedirectMode =RedirectMode.Permanent;
To: settings.AutoRedirectMode = RedirectMode.Off;
The other alternative is to simply comment it:
//settings.AutoRedirectMode =RedirectMode.Permanent;
2) By having friendly URLs enabled, it is necessary to change the way to call the web method, especifically its route:
From: ‘userForm.aspx/getAllUsers‘
To: ‘<%= ResolveUrl("userForm.aspx/getAllUsers") %>‘
So that the final jQuery code looks like this:
$.ajax({ url: ‘<%= ResolveUrl("userForm.aspx/getAllUsers") %>‘, async: false, contentType: ‘application/json; charset=utf-8‘, success: function (data) { source.localdata = data.d; }, error: function (err) { alert(‘Error: ‘ + err); } })
With this issue fixed now my app works fine.
jquery ajax calls to asp.net web methods authentication error,布布扣,bubuko.com
jquery ajax calls to asp.net web methods authentication error
原文：http://www.cnblogs.com/happy-Chen/p/3666224.html