form1.cs

这是.net2005学习不可缺少的教程

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace HelloWorld
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnMe;
		private System.Windows.Forms.Label lblTip;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			this.Text = "Hello World";
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.btnMe = new System.Windows.Forms.Button();
			this.lblTip = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// btnMe
			// 
			this.btnMe.Location = new System.Drawing.Point(112, 192);
			this.btnMe.Name = "btnMe";
			this.btnMe.TabIndex = 0;
			this.btnMe.Text = "Click Me";
			this.btnMe.Click += new System.EventHandler(this.button1_Click);
			// 
			// lblTip
			// 
			this.lblTip.BackColor = System.Drawing.SystemColors.Control;
			this.lblTip.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblTip.Location = new System.Drawing.Point(40, 24);
			this.lblTip.Name = "lblTip";
			this.lblTip.Size = new System.Drawing.Size(216, 120);
			this.lblTip.TabIndex = 1;
			this.lblTip.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(292, 266);
			this.Controls.Add(this.lblTip);
			this.Controls.Add(this.btnMe);
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			lblTip.Text = "Hello World!";           			
		}
	}
}