I'm experiencing a very weird bug.
I have a page that works very well without the UpdatePanel. When I surround things with UpdatePanel, I have this error:
Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
Requested URL: /SearchTicket.aspx0
Version Information: Microsoft .NET Framework Version:2.0.50727.3603; ASP.NET Version:2.0.50727.3082
The page name is SearchTicket.aspx . When UpdatePanel is enabled, it tries to open an SearchTicket.aspx0, and obviously can't do it, then returns a 404.
Is this a known bug? I've found no clue on the web about it.
Note: The page loads as expected for the first time. The first update makes this happen.