public string LoadData(PageInfo <ViewDataTable> pageInfo, ViewDataTable oSearchEntity = null, string sOperator = null, int iOrderGroup = 0, string sSortName = null, string sSortOrder = null) { return(JsonHelper.ObjectToJSON(_dataTableService.GetPageList(pageInfo, oSearchEntity, sOperator, iOrderGroup, sSortName, sSortOrder))); }