using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using SapNwRfc;


namespace SAPnwRFC_framework
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            callsap();
        }

        void callsap()
        {   
            string connectionString = "AppServerHost=10.100.100.100; SystemNumber=10; User=xx;Password=XXX; Client=7X0; Language=ZH; PoolSize=5; Trace=8";
            var connection = new SapConnection(connectionString);
            connection.Connect();
            label1.Text = "Logon SAP Server...";

            var someFunction = connection.CreateFunction("ZKAVEN_F001"); //执行的sap 函数
            var result = someFunction.Invoke<return_table>(new SomeFunctionParameters  //执行sap 函数
            {
                L_MATNR = textBox1.Text, 
            });

            label1.Text = result.L_MAKTX.ToString(); //得到SAP 输出单个值内容
            connection.Disconnect();
        }

        class SomeFunctionParameters //sap 输入内容
        {
            [SapName("L_MATNR")]
            public string L_MATNR { get; set; }
        }
        class return_table //sap 输出内容
        {

            [SapName("IT_MARA")]
            public TableAItem[] Itemsa { get; set; }

            [SapName("L_MAKTX")]
            public string L_MAKTX { get; set; }
  
        }

        class TableAItem //sap 输出的内表的数据，可以自行扩展
        {
            [SapName("MATNR")]
            public string MATNR { get; set; }

            [SapName("ERNAM")]
            public string ERNAM { get; set; }
        }

    }
}