RFC call input-output structure of the 3 cases of SAP interface program

      C # by calling SAP RFC interfaces series of three, calls the method input output structure of the interface program.

using SAP.Middleware.Connector;

 

IDestinationConfiguration ID = new RfcConfig();
        RfcDestinationManager.RegisterDestinationConfiguration(ID);
        RfcDestination prd = RfcDestinationManager.GetDestination("PRD_000");//正式区000环境
        RfcDestinationManager.UnregisterDestinationConfiguration(ID);
        RfcRepository repo = prd.Repository;
        IRfcFunction companyBapi = repo.CreateFunction("ZM_PURCHASE_PO");   //调用函数名
        
        try
        {
            var structSAP = companyBapi.GetStructure("pohead");    //表头
            structSAP.SetValue("ZRELEASE", "1");
            structSAP.SetValue("LIFNR", txtCname.Text.Trim());     //"410001"
            structSAP.SetValue("CITY1", "福建");
            structSAP.SetValue("COUNTRY", "CN");
            structSAP.SetValue("ZFORM", "8080");
            structSAP.SetValue("ZOABH", lblBH.Text.Trim());

            IRfcTable tableSAP = companyBapi.GetTable("IT_PO");   //表体
            for (int i = 0; i < gvlist1.Rows.Count; i++)    
            {
                IRfcStructure st = tableSAP.Metadata.LineType.CreateStructure();
                st.SetValue("ESOKZ", "0");
                st.SetValue("BNFPO", gvlist1.Rows[i].Cells[3].Text.Trim());        
                st.SetValue("MENGE", gvlist1.Rows[i].Cells[7].Text.Trim());        
                st.SetValue("MEINS", gvlist1.Rows[i].Cells[6].Text.Trim());          //计算 单位  "EA"
                st.SetValue("EEIND", Convert.ToDateTime(gvlist1.Rows[i].Cells[19].Text.Trim()).ToString("yyyyMMdd"));                           
                tableSAP.Append(st);
            }
            companyBapi.SetValue("pohead", structSAP);
            companyBapi.SetValue("IT_PO", tableSAP);
            companyBapi.Invoke(prd);   //执行函数

            IRfcStructure OPTIONS2 = companyBapi.GetStructure("E_MATNRCOST");      //输出结构

            txtSCI04.Text = OPTIONS2.GetString("MAKTX");
            txtSCI05.Text = OPTIONS2.GetString("WRKST");


            IRfcTable OPTIONS = companyBapi.GetTable("RETURN");    //返回表格值
            bool IsFail = false;
            StringBuilder strMsg = new StringBuilder();
            for (int i = 0; i < OPTIONS.RowCount; i++)
            {
                OPTIONS.CurrentIndex = i;

                if (OPTIONS.GetString("TYPE").Equals("E"))
                {
                    IsFail = true;
                    strMsg.Append (OPTIONS.GetString ( " the MESSAGE " )); 
                    strMsg.Append ( " <br> " ); 
                } 

            } 

            IF (IsFail) 
            { 
                SystemTools.displayTips ( " the SAP introduction details on exceptions:! " + strMsg.ToString ( ), 0 , lblInfoMsg);
                 return ; 
            } 
        } 
        the catch (RfcAbapException EX)   // this exception specifically configured to obtain a user-defined exception information! ! ! ! 
        {
            twMsgbox.AjaxAlert (companyBapi.Metadata.GetAbapException (ex.Key) .Documentation); 
        } 
        the catch (RfcAbapRuntimeException EX)    // This Exception dedicated to acquiring operation exception during execution RFC! ! ! ! 
        { 
            TwMsgbox.AjaxAlert (companyBapi.Metadata.GetAbapException (ex.Key) .Documentation); 
        } 
        the catch (RfcBaseException EX)   // This is the total Exception Exception class, retrieves all exception if there is a plurality of the Catch, can not put The first one! ! ! ! 
        { 
            TwMsgbox.AjaxAlert ( " number does not exist or SAP database connection error message as follows:! " + Ex.Message); 
        }