Asynchronous method AsyncCallback not working

Question

Hi.

   I have a windows form that calls asynchronous methods, I think there is a problem with the AsyncCallback method "GetAccountNamesComplete" (it is not being executed), I am suspecting user permission or other related issues, I tried to run it pointing a dev environment server where web service was deployed. When it is pointed to prod environment server, the method is being executed, but I am getting a Http 403 error. How can I determine what or where exactly is the problem? Is there a tool that could determine this? What are areas that I could check (possible reasons why first issue occurs - callback method not being executed)? There is no error being triggered.

Thanks in advanced.

private void LoginForm_Load(object sender, System.EventArgs e)
        {
            nFailures = 0;
                       
            WebServices.MyReportingService svc = AppHelper.GetWebServiceObject();
            AsyncCallback callback = new AsyncCallback(GetAccountNamesComplete);
           
            svc.BeginGetAccountNames(callback, svc);
}

private void GetAccountNamesComplete(IAsyncResult ar)
        {

            WebServices.MyReportingService svc = ar.AsyncState
                    as WebServices.MyReportingService;
            string[] accounts = svc.EndGetAccountNames(ar);
            this.Invoke(new UpdateAccountDelegate(UpdateAccountNames),
                new object[] { accounts });
        }

  

Answer 1

If you call svc.EndGetAccountNames, then any exception should be thrown at the point where you call it.

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John Saunders
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Answer 2

in my case, no exception was thrown... i think this is a missing/wrong permission.... need tool to determine where went wrong or what is missing...