protected void CallbackPanelWaybill_Callback(object sender, CallbackEventArgsBase e) { //string sYear = ComboBoxYear.Text; //string sWeekNum = ComboBoxWeekNum.Text; string sCustCode = TextBoxCustCode.Text; int iYear = 0; int iWeekNum = 0; if (!string.IsNullOrEmpty(ComboBoxYear.Text)) { iYear = Convert.ToInt32(ComboBoxYear.Text); } if (!string.IsNullOrEmpty(ComboBoxWeekNum.Text)) { iWeekNum = Convert.ToInt32(ComboBoxWeekNum.Text); } gridWayBill.DataSource = HLSSOA.HLSSOAWaybills(iYear, iWeekNum, sCustCode); gridWayBill.KeyFieldName = "Waybill"; gridWayBill.DataBind(); }