form1.cs

这是.net2005学习不可缺少的教程

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

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void ToolStripMenuItem_Exit_Click(object sender, EventArgs e)
        {
            this.Close();
            Application.Exit();
        }

        private void ToolStripMenuItem_Open_Click(object sender, EventArgs e)
        {
            Form2 newMDIChild = new Form2();
            // 设置父窗体
            newMDIChild.MdiParent = this;
            // 显示新窗体
            newMDIChild.Show();

        }

        //层叠
        private void ToolStripMenuItem_Cascade_Click(object sender, EventArgs e)
        {
            this.LayoutMdi(System.Windows.Forms.MdiLayout.Cascade);
        }

        //水平平铺
        private void ToolStripMenuItem_H_Click(object sender, EventArgs e)
        {
            this.LayoutMdi(System.Windows.Forms.MdiLayout.TileHorizontal);
        }

        //垂直平铺
        private void ToolStripMenuItem_V_Click(object sender, EventArgs e)
        {
            this.LayoutMdi(System.Windows.Forms.MdiLayout.TileVertical);
        }
    }
}