public void PerformSearch()
        {
            var eventArgs = new ASPxPerformSearchingEventArgs();

            RaisePerformSearching(eventArgs);

            if (eventArgs.Cancel)
            {
                return;
            }

            FilterExpression = eventArgs.CalculateFilterExpression();
            DataBind();

            SearchDetails   = eventArgs.CalculateSearchDetails().IfEmpty(SettingsText.SearchResultsEmptyDetails);
            SearchPerformed = true;
        }