c#


using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace sock_user
{
    public partial class Form1 : Form
    {
        private IPAddress myIP = IPAddress.Parse("172.16.5.25");
        private IPEndPoint MyServer;
        private Socket connectsock;
        private bool check = true;
        private System.ComponentModel.Container components = null;        public Form1()
        {
            InitializeComponent();
            this.btn_connection.Click += new System.EventHandler(this.btn_connection_Click);
            this.btn_send.Click += new System.EventHandler(this.btn_send_Click);
            this.btn_close.Click+=new EventHandler(this.btn_close_Click);
        }        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
        
        
        private void Form1_Load(object sender, EventArgs e)
        {        }        private void btn_connection_Click(object sender, EventArgs e)
        {
            try
            {
                myIP = IPAddress.Parse(txt_system.Text);            }
            catch
            {
                MessageBox.Show("对不起，你输入的IP地址不正确");
            }
            try
            {
                MyServer = new IPEndPoint(myIP, Int32.Parse(txt_ask.Text));
                connectsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                connectsock.Connect(MyServer);
                Thread thread = new Thread(new ThreadStart(receive));
                thread.Start();
            }
            catch(Exception ee)
            {
                MessageBox.Show(ee.Message);
            }        }        private void btn_send_Click(object sender, EventArgs e)
        {
            try
            {
                Byte[] sendbyte = new Byte[64];
                string send = richTextBox2.Text + "\r\n";
                NetworkStream netstream = new NetworkStream(connectsock);
                sendbyte = System.Text.Encoding.BigEndianUnicode.GetBytes(send.ToArray());
                netstream.Write(sendbyte, 0, sendbyte.Length);
                netstream.Flush();
            }
            catch
            {
                MessageBox.Show("连接没有建立！无法发送");
            }
        }        private void btn_close_Click(object sender, EventArgs e)
        {
            try
            {
                connectsock.Close();            }
            catch
            {
                MessageBox.Show("连接没有建立！断开无效！");
            }
        }        private void receive()
        {
            while(true)
            {
                Byte[] Rec = new Byte[64];
                
                NetworkStream netstream = new NetworkStream(connectsock);
                netstream.Read(Rec,0,Rec.Length);
                string RecMessage=System.Text.Encoding.BigEndianUnicode.GetString(Rec);
                richTextBox1.AppendText(RecMessage+"\r\n");
            
            }
        }       
    }
}
中间 有好多问题，比如：
1：错误 2 类型“sock_user.Form1”已定义了一个名为“Dispose”的具有相同参数类型的成员 D:\Users\shenbao\sock_user\sock_user\Form1.cs 32 33 sock_user
2：错误 1 类型“sock_user.Form1”已经包含“components”的定义 D:\Users\shenbao\sock_user\sock_user\Form1.cs 22 49 sock_user
等等……，请大家帮我看看其中还有好多问题该怎么解决