mdichild.cs

多文档编辑,可同时编辑多个文本文档文件,比windows自带的记事本方便多了.

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing.Printing;
using System.IO;
using System.Text;
using System.Collections.Generic;
namespace 多文档
{
	/// <summary>
	/// MDIChild 的摘要说明。
	/// </summary>
	public class MDIChild : System.Windows.Forms.Form
	{
		public System.Windows.Forms.RichTextBox richTextBox1;
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem menuItem2;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.MenuItem menuItem4;
		private System.Windows.Forms.MenuItem menuItem5;
		private System.Windows.Forms.MenuItem menuItem6;
		private System.Windows.Forms.MenuItem menuItem8;
		private System.Windows.Forms.MenuItem menuItem9;
		private System.Windows.Forms.MenuItem menuItem10;
		private System.Windows.Forms.MenuItem menuItem11;
		private System.Drawing.Printing.PrintDocument printDocument1;
		private System.Windows.Forms.PageSetupDialog pageSetupDialog1;
		private System.Windows.Forms.PrintPreviewDialog printPreviewDialog1;
		private System.Windows.Forms.PrintDialog printDialog1;
        private System.Windows.Forms.PrintPreviewControl printPreviewControl1;
        public ContextMenu contextMenu1;
		private System.Windows.Forms.MenuItem copy;
		private System.Windows.Forms.MenuItem paste;
		private System.Windows.Forms.MenuItem cut;
        private System.Windows.Forms.SaveFileDialog saveFileDialog1;
        private IContainer components;
		private System.Windows.Forms.MenuItem menuItem12;
		private System.Windows.Forms.MenuItem seleAll;
		private System.Windows.Forms.MenuItem menuItem13;
		private System.Windows.Forms.MenuItem Del;
		private System.Windows.Forms.MenuItem undo;
		private System.Windows.Forms.MenuItem menuItem14;
		private System.Windows.Forms.MenuItem Un;
		private System.Windows.Forms.MenuItem menuItemEdit;
        private StringReader MySReader;

		public MDIChild()
		{
			//
			// 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 窗体设计器生成的代码
		/// <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.components = new System.ComponentModel.Container();
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MDIChild));
            this.richTextBox1 = new System.Windows.Forms.RichTextBox();
            this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.menuItem3 = new System.Windows.Forms.MenuItem();
            this.menuItem4 = new System.Windows.Forms.MenuItem();
            this.menuItem5 = new System.Windows.Forms.MenuItem();
            this.menuItem6 = new System.Windows.Forms.MenuItem();
            this.menuItemEdit = new System.Windows.Forms.MenuItem();
            this.menuItem8 = new System.Windows.Forms.MenuItem();
            this.menuItem9 = new System.Windows.Forms.MenuItem();
            this.menuItem10 = new System.Windows.Forms.MenuItem();
            this.menuItem11 = new System.Windows.Forms.MenuItem();
            this.menuItem14 = new System.Windows.Forms.MenuItem();
            this.menuItem12 = new System.Windows.Forms.MenuItem();
            this.Un = new System.Windows.Forms.MenuItem();
            this.printDocument1 = new System.Drawing.Printing.PrintDocument();
            this.pageSetupDialog1 = new System.Windows.Forms.PageSetupDialog();
            this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
            this.printPreviewDialog1 = new System.Windows.Forms.PrintPreviewDialog();
            this.printDialog1 = new System.Windows.Forms.PrintDialog();
            this.printPreviewControl1 = new System.Windows.Forms.PrintPreviewControl();
            this.contextMenu1 = new System.Windows.Forms.ContextMenu();
            this.copy = new System.Windows.Forms.MenuItem();
            this.paste = new System.Windows.Forms.MenuItem();
            this.cut = new System.Windows.Forms.MenuItem();
            this.seleAll = new System.Windows.Forms.MenuItem();
            this.menuItem13 = new System.Windows.Forms.MenuItem();
            this.Del = new System.Windows.Forms.MenuItem();
            this.undo = new System.Windows.Forms.MenuItem();
            this.SuspendLayout();
            // 
            // richTextBox1
            // 
            this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.richTextBox1.Location = new System.Drawing.Point(0, 0);
            this.richTextBox1.Name = "richTextBox1";
            this.richTextBox1.Size = new System.Drawing.Size(424, 421);
            this.richTextBox1.TabIndex = 0;
            this.richTextBox1.Text = "";
            this.richTextBox1.SelectionChanged += new System.EventHandler(this.richTextBox1_SelectionChanged);
            this.richTextBox1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.richTextBox1_MouseUp);
            // 
            // mainMenu1
            // 
            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem1,
            this.menuItemEdit});
            // 
            // menuItem1
            // 
            this.menuItem1.Index = 0;
            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem2,
            this.menuItem3,
            this.menuItem4,
            this.menuItem5,
            this.menuItem6});
            this.menuItem1.Text = "文件(&F)";
            // 
            // menuItem2
            // 
            this.menuItem2.Index = 0;
            this.menuItem2.Shortcut = System.Windows.Forms.Shortcut.CtrlS;
            this.menuItem2.Text = "保存(&S)";
            this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
            // 
            // menuItem3
            // 
            this.menuItem3.Index = 1;
            this.menuItem3.Text = "页面设置";
            this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
            // 
            // menuItem4
            // 
            this.menuItem4.Index = 2;
            this.menuItem4.Text = "打印设置";
            this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
            // 
            // menuItem5
            // 
            this.menuItem5.Index = 3;
            this.menuItem5.Text = "打印预览";
            this.menuItem5.Click += new System.EventHandler(this.menuItem5_Click);
            // 
            // menuItem6
            // 
            this.menuItem6.Index = 4;
            this.menuItem6.Text = "打印(&P)";
            this.menuItem6.Click += new System.EventHandler(this.menuItem6_Click);
            // 
            // menuItemEdit
            // 
            this.menuItemEdit.Index = 1;
            this.menuItemEdit.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem8,
            this.menuItem9,
            this.menuItem10,
            this.menuItem11,
            this.menuItem14,
            this.menuItem12,
            this.Un});
            this.menuItemEdit.Text = "编辑";
            this.menuItemEdit.Click += new System.EventHandler(this.menuItemEdit_Click);
            this.menuItemEdit.Popup += new System.EventHandler(this.menuItemEdit_Popup);
            // 
            // menuItem8
            // 
            this.menuItem8.Index = 0;
            this.menuItem8.Shortcut = System.Windows.Forms.Shortcut.CtrlX;
            this.menuItem8.Text = "剪切(&T)    Ctrl+X";
            this.menuItem8.Click += new System.EventHandler(this.menuItem8_Click);
            // 
            // menuItem9
            // 
            this.menuItem9.Index = 1;
            this.menuItem9.Shortcut = System.Windows.Forms.Shortcut.CtrlC;
            this.menuItem9.Text = "拷贝(&C)    Ctrl+C";
            this.menuItem9.Click += new System.EventHandler(this.menuItem9_Click);
            // 
            // menuItem10
            // 
            this.menuItem10.Index = 2;
            this.menuItem10.Shortcut = System.Windows.Forms.Shortcut.CtrlV;
            this.menuItem10.Text = "粘贴(&P)    Ctrl+V";
            this.menuItem10.Click += new System.EventHandler(this.menuItem10_Click);
            // 
            // menuItem11
            // 
            this.menuItem11.Index = 3;
            this.menuItem11.Shortcut = System.Windows.Forms.Shortcut.Del;
            this.menuItem11.Text = "删除(&L)    Del";
            this.menuItem11.Click += new System.EventHandler(this.menuItem11_Click);
            // 
            // menuItem14
            // 
            this.menuItem14.Index = 4;
            this.menuItem14.Text = "-";
            // 
            // menuItem12
            // 
            this.menuItem12.Index = 5;
            this.menuItem12.Shortcut = System.Windows.Forms.Shortcut.CtrlA;
            this.menuItem12.Text = "全选(&A)    Ctrl+A";
            this.menuItem12.Click += new System.EventHandler(this.menuItem12_Click_1);
            // 
            // Un
            // 
            this.Un.Index = 6;
            this.Un.Shortcut = System.Windows.Forms.Shortcut.CtrlZ;
            this.Un.Text = "撤销(&U)    Ctrl+Z";
            this.Un.Click += new System.EventHandler(this.Un_Click);
            // 
            // pageSetupDialog1
            // 
            this.pageSetupDialog1.Document = this.printDocument1;
            this.pageSetupDialog1.ShowHelp = true;
            // 
            // saveFileDialog1
            // 
            this.saveFileDialog1.DefaultExt = "txt";
            this.saveFileDialog1.Filter = "所有文件(*.*)|*.*|文本文件(*.txt)|*.txt|C#文件(*.cs)|(*.cs)";
            this.saveFileDialog1.RestoreDirectory = true;
            this.saveFileDialog1.ShowHelp = true;
            // 
            // printPreviewDialog1
            // 
            this.printPreviewDialog1.AutoScrollMargin = new System.Drawing.Size(0, 0);
            this.printPreviewDialog1.AutoScrollMinSize = new System.Drawing.Size(0, 0);
            this.printPreviewDialog1.ClientSize = new System.Drawing.Size(400, 300);
            this.printPreviewDialog1.Document = this.printDocument1;
            this.printPreviewDialog1.Enabled = true;
            this.printPreviewDialog1.Icon = ((System.Drawing.Icon)(resources.GetObject("printPreviewDialog1.Icon")));
            this.printPreviewDialog1.Name = "printPreviewDialog1";
            this.printPreviewDialog1.UseAntiAlias = true;
            this.printPreviewDialog1.Visible = false;
            // 
            // printDialog1
            // 
            this.printDialog1.Document = this.printDocument1;
            this.printDialog1.PrintToFile = true;
            this.printDialog1.ShowHelp = true;
            // 
            // printPreviewControl1
            // 
            this.printPreviewControl1.AutoZoom = false;
            this.printPreviewControl1.Document = this.printDocument1;
            this.printPreviewControl1.Location = new System.Drawing.Point(430, 321);
            this.printPreviewControl1.Name = "printPreviewControl1";
            this.printPreviewControl1.Size = new System.Drawing.Size(78, 100);
            this.printPreviewControl1.TabIndex = 1;
            this.printPreviewControl1.Zoom = 0.0718562874251497;
            // 
            // contextMenu1
            // 
            this.contextMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.copy,
            this.paste,
            this.cut,
            this.seleAll,
            this.menuItem13,
            this.Del,
            this.undo});
            // 
            // copy
            // 
            this.copy.Index = 0;
            this.copy.Text = "复制(&C)";
            this.copy.Click += new System.EventHandler(this.menuItem12_Click);
            // 
            // paste
            // 
            this.paste.Index = 1;
            this.paste.Text = "粘贴(&P)";
            this.paste.Click += new System.EventHandler(this.paste_Click);
            // 
            // cut
            // 
            this.cut.Index = 2;
            this.cut.Text = "剪切(&T)";
            this.cut.Click += new System.EventHandler(this.cut_Click);
            // 
            // seleAll
            // 
            this.seleAll.Index = 3;
            this.seleAll.Text = "全选(&A)";
            this.seleAll.Click += new System.EventHandler(this.seleAll_Click);
            // 
            // menuItem13
            // 
            this.menuItem13.Index = 4;