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.IO;
using System.Text;

namespace WebApplication2
{
	public class GetWebPageSource
	{
		public GetWebPageSource()
		{}
		public GetWebPageSource(string webAddress)
		{
			this.webAddress=webAddress;
		}
		public string GetSource()
		{
			StringBuilder strSource=new StringBuilder("");
			try
			{
				WebRequest WReq=WebRequest.Create(this.webAddress);
				WebResponse WResp=WReq.GetResponse();
				StreamReader sr=new StreamReader(WResp.GetResponseStream(),Encoding.ASCII);
				string strTemp="";
				while((strTemp=sr.ReadLine())!=null)
				{
					strSource.Append(strTemp+"\r\n");
				}
				sr.Close();
			}
			catch (WebException WebExcp)
			{
				MessageBox.Show(WebExcp.Message,"error",MessageBoxButtons.OK);
			}
			return strSource.ToString();
		}
		public void setWebAddress(string strNewAddress)
		{
			this.webAddress= strNewAddress;
		}
		private string webAddress;
	}
	
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		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.label1 = new System.Windows.Forms.Label();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.button2 = new System.Windows.Forms.Button();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(148, 24);
			this.label1.TabIndex = 0;
			this.label1.Text = "输入URL，并回车：";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// textBox1
			// 
			this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right);
			this.textBox1.Location = new System.Drawing.Point(128, 0);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(120, 21);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "textBox1";
			// 
			// button2
			// 
			this.button2.Anchor = (System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right);
			this.button2.Location = new System.Drawing.Point(324, 0);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(48, 24);
			this.button2.TabIndex = 4;
			this.button2.Text = "EXIT";
			this.button2.Click += new System.EventHandler(this.exitButton_Click);
			// 
			// textBox2
			// 
			this.textBox2.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right);
			this.textBox2.Location = new System.Drawing.Point(0, 32);
			this.textBox2.Multiline = true;
			this.textBox2.Name = "textBox2";
			this.textBox2.ScrollBars = System.Windows.Forms.ScrollBars.Both;
			this.textBox2.Size = new System.Drawing.Size(372, 317);
			this.textBox2.TabIndex = 5;
			this.textBox2.Text = "textBox2";
			// 
			// button1
			// 
			this.button1.Anchor = (System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right);
			this.button1.Location = new System.Drawing.Point(272, 0);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(48, 24);
			this.button1.TabIndex = 6;
			this.button1.Text = "CODE";
			this.button1.Click += new System.EventHandler(this.codeBtn_click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(376, 350);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.button1,
																		  this.textBox2,
																		  this.button2,
																		  this.textBox1,
																		  this.label1});
			this.Name = "Form1";
			this.Text = "WebPageSource";
			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 exitButton_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
		}

		/*private void URLtextBox_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
		{
			char chr=e.KeyChar;
			if (chr==13)
			{
				GetPageSource();
			}
		}*/
		public void GetPageSource()
		{
			string strAddress=textBox1.Text.Trim();
			strAddress=strAddress.ToLower();
			GetWebPageSource objGS= new GetWebPageSource();
			objGS.setWebAddress(strAddress);
			strS=objGS.GetSource();
			if(strS.Length>1)
			{
				showSource();
			}
		}
		private void showSource()
		{
			Form1.ActiveForm.Height=608;
			textBox2.Text=strS;
			textBox2.Visible=true;
		}

	public string strS;

		private void codeBtn_click(object sender, System.EventArgs e)
		{
		GetPageSource();
		}
		}
}