Windows Phone 7 Ad Control Testing in Emulator

I did the following after checking several posts on the Microsoft Ad Control for Windows Phone 7.
The following should go in the Constructor of the page.

 if (!CheckIsTrial())
    {
      SP_ADControl.Visibility = Visibility.Collapsed;

     }
       else
   {
       // Show_Buy_Now_Page();
        SP_ADControl.Visibility = Visibility.Visible;
    }
  

the following is the CheckisTrial Method

private bool CheckIsTrial()
        {
#if DEBUG
            MessageBoxResult result = MessageBox.Show("CLICK OK TO SIMULATE FULL LICENSE", "BUY NOW!", MessageBoxButton.OKCancel);


            if (result == MessageBoxResult.OK)
            {
                return false;
            }
            else
            {
                return true;
            }
#else
  Return licenseInfo.IsTrial();
#endif
        }