结构：

安装NuGet包：

using SAP.Middleware.Connector;using System.Data;namespace DFDN.SDK.ServiceInterface{ public class RfcDemo { public void Loading() { RfcDestination SapRfcDestination = RfcDestinationManager.GetDestination(GetParameters()); //连接字符串 RfcDestination SapRfcDestinationForConfig = RfcDestinationManager.GetDestination("dad"); //连接字符串 从App.config配置 RfcRepository SapRfcRepository = SapRfcDestination.Repository; DataTable dt = new DataTable(); //数据源 dt.Columns.Add("DATA1", typeof(string)); dt.Columns.Add("DATA2", typeof(string)); dt.Columns.Add("DATA3", typeof(string)); IRfcFunction func = SapRfcRepository.CreateFunction("Z_RFC_XXXX"); IRfcTable tSAP = func.GetTable("INPUT_TABLE"); for (int i = 0; i < dt.Rows.Count; i++) { string str1 = dt.Rows[i][0].ToString(); string str2 = dt.Rows[i][1].ToString(); string str3 = dt.Rows[i][2].ToString(); IRfcStructure struSAP = tSAP.Metadata.LineType.CreateStructure(); struSAP.SetValue("str1", str1); struSAP.SetValue("str2", str2); struSAP.SetValue("str3", str3); tSAP.Append(struSAP); } func.SetValue("INPUT_TABLE", tSAP); //table 参数 func.SetValue("WERKS", "A"); //单个参数 func.SetValue("STATUS", "B"); //单个参数 func.Invoke(SapRfcDestination); //调用 IRfcTable SAPDataTable = func.GetTable("RETURN_TABLE"); //获取表格结果 DataTable table = ToDataTable(SAPDataTable); //转换DataTable string result = func.GetValue("X").ToString(); //获取指定返回结果 } /// <summary> /// RfcTable 转换为 DataTable /// </summary> /// <param name="myrfcTable"></param> /// <returns></returns> public DataTable ToDataTable(IRfcTable myrfcTable) { DataTable loTable = new DataTable(); int liElement; for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++) { RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement); loTable.Columns.Add(metadata.Name); } foreach (IRfcStructure Row in myrfcTable) { DataRow ldr = loTable.NewRow(); for (liElement = 0; liElement <= myrfcTable.ElementCount - 1; liElement++) { RfcElementMetadata metadata = myrfcTable.GetElementMetadata(liElement); ldr[metadata.Name] = Row.GetString(metadata.Name); } loTable.Rows.Add(ldr); } return loTable; } /// <summary> /// SAP RFC 连接信息设置 /// </summary> /// <returns></returns> public RfcConfigParameters GetParameters() { RfcConfigParameters parms = new RfcConfigParameters(); parms.Add(RfcConfigParameters.AppServerHost, "192.168.0.114"); //SAP主机IP parms.Add(RfcConfigParameters.SystemNumber, "01"); //SAP实例 parms.Add(RfcConfigParameters.User, "RFC_EDI"); //用户名 parms.Add(RfcConfigParameters.Password, "init1"); //密码 parms.Add(RfcConfigParameters.Client, "300"); // Client parms.Add(RfcConfigParameters.Language, "ZH"); //登陆语言 parms.Add(RfcConfigParameters.PoolSize, "10"); parms.Add(RfcConfigParameters.IdleTimeout, "600"); parms.Add(RfcConfigParameters.Name, "DAP"); return parms; } }}<?xml version="1.0"?><configuration> <configSections> <sectionGroup name="SAP.Middleware.Connector"> <sectionGroup name="ClientSettings"> <section name="DestinationConfiguration" type="SAP.Middleware.Connector.RfcDestinationConfiguration,sapnco"/> </sectionGroup> </sectionGroup> </configSections> <SAP.Middleware.Connector> <ClientSettings> <DestinationConfiguration> <destinations> <add NAME="dad" USER="ddac" PASSWD="qwe" CLIENT="110" SYSNR="00" ASHOST="192.168.0.111" LANG="ZH" GROUP="PUBLIC" MAX_POOL_SIZE="10" IDLE_TIMEOUT="600"></add> </destinations> </DestinationConfiguration> </ClientSettings> </SAP.Middleware.Connector></configuration>

以上就是C# 如何调用SAP RFC的详细内容，更多关于C# 调用SAP RFC的资料请关注其它相关文章！