Hello, I have a question for you, my problem is as follows I have two menus within a callbackpanel and click the menu first call to a function vb to fill the second menu and hide the first while running another function it interacts with a control map ESRI this is done well, but when I click on a menu option in the second I mark an error.
For my control map occupies callbacks with javascript to refresh the map, the error is as follows:

EO.Web Controls Client Side Debug Message:
The CallBack on 'MiMenu_CallbackPanel1' has failed due to server side exception.Click OK to see the exception message.

I think the problem is the callbacks javascript with CallbackPanel

thanks for your help.

Greetings!

this is the exception!

The state information is invalid for this page and might be corrupted.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: The state information is invalid for this page and might be corrupted.

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

<%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.