Unhandled Exception in Winforms Application -


i have simple winforms app used enter test cases. ever since upgraded application .net 4.0 , added new tab page tab page control validating xml against xsd schema application has been randomly crashing. i've been unable reproduce exception.

the error qa guy receives generic windows message:

testcaseviewer has encountered problem , needs close. sorry inconvenience.

to try real error i've added following code beginning of main method of program:

        appdomain.currentdomain.unhandledexception += currentdomain_unhandledexception;         application.setunhandledexceptionmode(unhandledexceptionmode.catchexception);         application.threadexception += application_threadexception;

the event handlers this:

    static void application_threadexception(object sender, threadexceptioneventargs e)     {         try         {             messagebox.show(e.exception.tostring(), @"thread exception",                  messageboxbuttons.ok, messageboxicon.exclamation);         }                  {             application.exit();             }     }      static void currentdomain_unhandledexception(object sender, unhandledexceptioneventargs e)     {         try         {             var ex = (exception)e.exceptionobject;             messagebox.show(ex.tostring(), @"unhandled exception",                 messageboxbuttons.ok, messageboxicon.exclamation);         }                  {             application.exit();             }     }

unfortunately hasn't helped , whatever thowing error continues in way generates unhandled error bubbling os.

can give me other ideas trapping exception?

try adding following app.config

<runtime>    <!-- following setting prevents host closing when unhandled exception thrown -->    <legacyunhandledexceptionpolicy enabled="1" /> </runtime>

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