Question

I’m trying to debug a third party library that is throwing an null reference exception in certain cases, but I am only getting the exception from the javascript side, which doesn’t contain the stack trace in the error message.

Is there a value in the scriptmanager or something similar with more information about the exception, or should I be removing the update panels to get at the raw exception?

(Easier said then done, its nested several update panels deep)

Thanks!

Answer 1

Look into ScriptManager.AsyncPostBackError event.

You can do something like this

protected void ScriptManager1_AsyncPostBackError(object sender, AsyncPostBackErrorEventArgs e)
{
        //do something with the exception
        log(e.Exception.Message);

        // show a message to the user.
        ScriptManager1.AsyncPostBackErrorMessage =
            "An  error occurred." + e.Exception.Message;
    }
}