protected void ButtonUpdateAll_OnClick(object sender, EventArgs e)
 {
     try
     {
         UpdateAll(FeedbackUpdateAll);
     }
     catch (Exception ex)
     {
         FeedbackUpdateAll.HandleException(ex);
     }
 }
        protected void ButtonUpdateAll_OnClick(object sender, EventArgs e)
        {
            try
            {
                var errorCount = _UpdateAnswer.UpdateAllAnswers(false, ref _UpdateCount);

                FeedbackUpdateAll.AddInfo(_UpdateCount.ToString(CultureInfo.InvariantCulture) +
                                          _UpdateCount.Plural(" item was", " items were") + " updated.");
                if (errorCount > 0)
                {
                    FeedbackUpdateAll.AddError(errorCount.ToString(CultureInfo.InvariantCulture) +
                                               errorCount.Plural(" item was", " items were") + " not updated due to errors.");
                }

                InvalidatePageCache();
            }
            catch (Exception ex)
            {
                FeedbackUpdateAll.HandleException(ex);
            }
        }