private void BackgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
 {   //Start the .Gif (Play and make visible)    free to interact with UI in progressChanged.
     LoadSpinner.Play();
     LoadSpinner.Visibility = Visibility.Visible;
     try
     {
         loginUser = SQLuserAccess.UserLogin(username, password);
         if (loginUser != null)
         {
             if (username == loginUser.Username && password == loginUser.Password)
             {
             }
             else
             {
                 lblInvalidText.Visibility = Visibility.Visible;
             }
         }
         else
         {
             lblInvalidText.Visibility = Visibility.Visible;
         }
     }
     catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); }
 }
 private void LoadSpinner_MediaEnded(object sender, RoutedEventArgs e)
 {
     LoadSpinner.Position = new TimeSpan(0, 0, 1);
     LoadSpinner.Play();
 }