form1.cs

c#精彩编程百例（源代码）

namespace WinApp_BgColor
{
    using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.WinForms;
    using System.Data;

    /// <summary>
    ///    Summary description for Form1.
    /// </summary>
    public class Form1 : System.WinForms.Form
    {
        /// <summary>
        ///    Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components;
		private System.WinForms.Button button3;
		private System.WinForms.Button button2;
		private System.WinForms.Button button1;

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

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        ///    Clean up any resources being used.
        /// </summary>
        public override void Dispose()
        {
            base.Dispose();
            components.Dispose();
        }

        /// <summary>
        ///    Required method for Designer support - do not modify
        ///    the contents of this method with the code editor.
        /// </summary>
        private void buttonClick(object sender,EventArgs e)
		{
			if (sender==button1) this.BackColor=Color.Red;
			else if (sender==button2) this.BackColor=Color.Blue;
			else if (sender==button3) this.BackColor=Color.Green;
		}
        private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container ();
			this.button2 = new System.WinForms.Button ();
			this.button3 = new System.WinForms.Button ();
			this.button1 = new System.WinForms.Button ();
            // New code added by author
			EventHandler handler=new EventHandler(buttonClick);
			button1.Click +=handler;
            button2.Click +=handler;
			button3.Click +=handler;
			//@this.TrayHeight = 0;
			//@this.TrayLargeIcon = false;
			//@this.TrayAutoArrange = true;
			button2.Visible = true;
			button2.Location = new System.Drawing.Point (120, 112);
			button2.Size = new System.Drawing.Size (64, 24);
			button2.TabIndex = 1;
			button2.Text = "蓝色";
			button3.Visible = true;
			button3.Location = new System.Drawing.Point (216, 176);
			button3.Size = new System.Drawing.Size (64, 24);
			button3.TabIndex = 2;
			button3.Text = "绿色";
			button1.Location = new System.Drawing.Point (24, 40);
			button1.Size = new System.Drawing.Size (64, 24);
			button1.TabIndex = 0;
			button1.Text = "红色";
			this.Text = "Form1";
			this.AutoScaleBaseSize = new System.Drawing.Size (6, 14);
			this.Controls.Add (this.button3);
			this.Controls.Add (this.button2);
			this.Controls.Add (this.button1);
		}
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        public static void Main(string[] args) 
        {
            Application.Run(new Form1());
        }
    }
}