form1.cs

Csharp实例编程百例.rar

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace ChatClient
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
public class Form1 : System.Windows.Forms.Form
{
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
	private System.ComponentModel.Container components = null;
	private IPAddress HostIP=IPAddress.Parse("127.0.0.1");
	private IPEndPoint ChatServer;
	private Socket ChatSocket;
	private bool flag=true;
	private System.Windows.Forms.TextBox textBox1;
	private System.Windows.Forms.TextBox textBox2;
	private System.Windows.Forms.Button button1;
	private System.Windows.Forms.Button button2;
	private System.Windows.Forms.Button button3;
	private System.Windows.Forms.TextBox textBox3;
	private System.Windows.Forms.Label label1;
	private System.Windows.Forms.Label label2;
	private System.Windows.Forms.Label label3;
	private System.Windows.Forms.StatusBar statusBar1;

	public Form1()
	{
				//
				// Windows 窗体设计器支持所必需的
				//
		InitializeComponent();

				//
				// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
				//
	}

			/// <summary>
			/// 清理所有正在使用的资源。
			/// </summary>
	protected override void Dispose( bool disposing )
	{
		if( disposing )
			{
			if (components != null) 
				{
					components.Dispose();
				}
			}
		base.Dispose( disposing );
	}

			#region Windows Form Designer generated code
			/// <summary>
			/// 设计器支持所需的方法 - 不要使用代码编辑器修改
			/// 此方法的内容。
			/// </summary>
	private void InitializeComponent()
	{
		this.textBox1 = new System.Windows.Forms.TextBox();
		this.textBox2 = new System.Windows.Forms.TextBox();
		this.button1 = new System.Windows.Forms.Button();
		this.button2 = new System.Windows.Forms.Button();
		this.button3 = new System.Windows.Forms.Button();
		this.textBox3 = new System.Windows.Forms.TextBox();
		this.label1 = new System.Windows.Forms.Label();
		this.label2 = new System.Windows.Forms.Label();
		this.label3 = new System.Windows.Forms.Label();
		this.statusBar1 = new System.Windows.Forms.StatusBar();
		this.SuspendLayout();
		// 
		// textBox1
		// 
		this.textBox1.Location = new System.Drawing.Point(104, 16);
		this.textBox1.Multiline = true;
		this.textBox1.Name = "textBox1";
		this.textBox1.Size = new System.Drawing.Size(96, 24);
		this.textBox1.TabIndex = 1;
		this.textBox1.Text = "";
		// 
		// textBox2
		// 
		this.textBox2.Location = new System.Drawing.Point(8, 64);
		this.textBox2.Multiline = true;
		this.textBox2.Name = "textBox2";
		this.textBox2.ReadOnly = true;
		this.textBox2.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
		this.textBox2.Size = new System.Drawing.Size(320, 88);
		this.textBox2.TabIndex = 2;
		this.textBox2.Text = "";
		// 
		// button1
		// 
		this.button1.Location = new System.Drawing.Point(216, 16);
		this.button1.Name = "button1";
		this.button1.Size = new System.Drawing.Size(64, 24);
		this.button1.TabIndex = 3;
		this.button1.Text = "Login";
		this.button1.Click += new System.EventHandler(this.LoginBtn_click);
		// 
		// button2
		// 
		this.button2.Location = new System.Drawing.Point(48, 288);
		this.button2.Name = "button2";
		this.button2.Size = new System.Drawing.Size(72, 24);
		this.button2.TabIndex = 4;
		this.button2.Text = "Send";
		this.button2.Click += new System.EventHandler(this.SendBtn_click);
		// 
		// button3
		// 
		this.button3.Location = new System.Drawing.Point(200, 288);
		this.button3.Name = "button3";
		this.button3.Size = new System.Drawing.Size(80, 24);
		this.button3.TabIndex = 5;
		this.button3.Text = "Disconnect";
		this.button3.Click += new System.EventHandler(this.DiscBtn_click);
		// 
		// textBox3
		// 
		this.textBox3.Location = new System.Drawing.Point(8, 184);
		this.textBox3.Multiline = true;
		this.textBox3.Name = "textBox3";
		this.textBox3.Size = new System.Drawing.Size(320, 96);
		this.textBox3.TabIndex = 6;
		this.textBox3.Text = "";
		// 
		// label1
		// 
		this.label1.Location = new System.Drawing.Point(48, 24);
		this.label1.Name = "label1";
		this.label1.Size = new System.Drawing.Size(40, 24);
		this.label1.TabIndex = 7;
		this.label1.Text = "Name:";
		// 
		// label2
		// 
		this.label2.Location = new System.Drawing.Point(8, 48);
		this.label2.Name = "label2";
		this.label2.Size = new System.Drawing.Size(112, 16);
		this.label2.TabIndex = 8;
		this.label2.Text = "Message Received:";
		// 
		// label3
		// 
		this.label3.Location = new System.Drawing.Point(8, 160);
		this.label3.Name = "label3";
		this.label3.Size = new System.Drawing.Size(128, 16);
		this.label3.TabIndex = 9;
		this.label3.Text = "Message to be Sent:";
		// 
		// statusBar1
		// 
		this.statusBar1.Location = new System.Drawing.Point(0, 326);
		this.statusBar1.Name = "statusBar1";
		this.statusBar1.Size = new System.Drawing.Size(336, 16);
		this.statusBar1.TabIndex = 11;
		this.statusBar1.Text = "Status";
		// 
		// Form1
		// 
		this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
		this.ClientSize = new System.Drawing.Size(336, 342);
		this.Controls.AddRange(new System.Windows.Forms.Control[] {
																	  this.statusBar1,
																	  this.label3,
																	  this.label2,
																	  this.label1,
																	  this.textBox3,
																	  this.button3,
																	  this.button2,
																	  this.button1,
																	  this.textBox2,
																	  this.textBox1});
		this.Name = "Form1";
		this.Text = "ChatClient";
		this.ResumeLayout(false);

	}
			#endregion

			/// <summary>
			/// 应用程序的主入口点。
			/// </summary>
	[STAThread]
	static void Main() 
	{
		Application.Run(new Form1());
	}

			

	private void LoginBtn_click(object sender, System.EventArgs e)
	{
				
		HostIP=IPAddress.Parse("127.0.0.1");
		try
		{
			ChatServer=new IPEndPoint(HostIP,Int32.Parse("8080"));
			ChatSocket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
			ChatSocket.Connect(ChatServer);
			statusBar1.Text=textBox1.Text+" has logoned on.Now begin to connect...";
			Thread thread=new Thread(new ThreadStart(ChatProcess));
			thread.Start();
		}
		catch(Exception ee)
			{statusBar1.Text=ee.Message;}
	}

	private void ChatProcess()
	{
		if(ChatSocket.Connected)
		{
			statusBar1.Text="Ready for the chatting!";
			while(flag)
			{
				Byte[] ReceivedByte=new Byte[64];
				ChatSocket.Receive(ReceivedByte,ReceivedByte.Length,0);
				string ReceivedStr=System.Text.Encoding.BigEndianUnicode.GetString(ReceivedByte);
				textBox2.AppendText(ReceivedStr+"\r\n");
			}
		}
	}
	private void SendBtn_click(object sender, System.EventArgs e)
	{
		try
		{
			Byte[] SentByte=new Byte[64];
			string SentStr=textBox1.Text+"::::"+textBox3.Text+"\r\n";
			SentByte=System.Text.Encoding.BigEndianUnicode.GetBytes(SentStr.ToCharArray());
			ChatSocket.Send(SentByte,SentByte.Length,0);
			textBox3.Clear();
		}
		catch
		{statusBar1.Text="The connection has not existed!";}
	}

	private void DiscBtn_click(object sender, System.EventArgs e)
	{
		try
		{
			ChatSocket.Close();
			statusBar1.Text="The connection is disconnected!";
		}
		catch{statusBar1.Text="The connection has not existed!";}
	}
}
}