public void SortGridView(GridView gv, List <WACParameter> parms) { string srt = WACParameter.GetParameterValue(parms, WACParameter.ParameterType.ListSort) as string; string sortDirection = ToggleSortDirection(srt); sortExpression = srt; IList sorted = ListSource.GetSortedList(DataProvider.SortedList, sortExpression, sortDirection); BindGridView(gv, sorted); }