C#写的记事本

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//notepad.cs

//==========================

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

namespace csnotepad
{
 ///
 /// Summary description for Form1.
 ///
 public class notepad : System.Windows.Forms.Form
 {
  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 menuItem7;
  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.Windows.Forms.MenuItem menuItem12;
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.MenuItem menuItem14;
  private System.Windows.Forms.SaveFileDialog saveFileDialog1;
  private System.Windows.Forms.MenuItem menuItem13;
  private System.Windows.Forms.OpenFileDialog openFileDialog1;
  private System.Windows.Forms.MenuItem menuItem15;
  private System.Windows.Forms.MenuItem menuItem16;
  ///
  /// Required designer variable.
  ///
  private System.ComponentModel.Container components = null;

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

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

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

#region Windows Form Designer generated code
  ///
  /// Required method for Designer support - do not modify
  /// the contents of this method with the code editor.
  ///
  private void InitializeComponent()
  {
   this.mainMenu1 = new System.Windows.Forms.MainMenu();
   this.menuItem1 = new System.Windows.Forms.MenuItem();
   this.menuItem2 = new System.Windows.Forms.MenuItem();
   this.menuItem3 = new System.Windows.Forms.MenuItem();
   this.menuItem13 = new System.Windows.Forms.MenuItem();
   this.menuItem4 = new System.Windows.Forms.MenuItem();
   this.menuItem14 = new System.Windows.Forms.MenuItem();
   this.menuItem5 = new System.Windows.Forms.MenuItem();
   this.menuItem6 = new System.Windows.Forms.MenuItem();
   this.menuItem7 = 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.menuItem12 = new System.Windows.Forms.MenuItem();
   this.menuItem15 = new System.Windows.Forms.MenuItem();
   this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
   this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
   this.textBox1 = new System.Windows.Forms.TextBox();
   this.menuItem16 = new System.Windows.Forms.MenuItem();
   this.SuspendLayout();
   //
   // mainMenu1
   //
   this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem1,
                       this.menuItem6,
                       this.menuItem11,
                       this.menuItem15});
   //
   // menuItem1
   //
   this.menuItem1.Index = 0;
   this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem2,
                       this.menuItem3,
                       this.menuItem13,
                       this.menuItem4,
                       this.menuItem14,
                       this.menuItem5});
   this.menuItem1.Text = "文件";
   //
   // menuItem2
   //
   this.menuItem2.Index = 0;
   this.menuItem2.Text = "&New";
   this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
   //
   // menuItem3
   //
   this.menuItem3.Index = 1;
   this.menuItem3.Text = "&Open";
   this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
   //
   // menuItem13
   //
   this.menuItem13.Index = 2;
   this.menuItem13.Text = "-";
   //
   // menuItem4
   //
   this.menuItem4.Index = 3;
   this.menuItem4.Text = "&Save";
   this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
   //
   // menuItem14
   //
   this.menuItem14.Index = 4;
   this.menuItem14.Text = "-";
   //
   // menuItem5
   //
   this.menuItem5.Index = 5;
   this.menuItem5.Text = "Exit";
   this.menuItem5.Click += new System.EventHandler(this.menuItem5_Click_1);
   //
   // menuItem6
   //
   this.menuItem6.Index = 1;
   this.menuItem6.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                       this.menuItem7,
                       this.menuItem8,
                       this.menuItem9,
                       this.menuItem10});
   this.menuItem6.Text = "编辑";
   //
   // menuItem7
   //
   this.menuItem7.Index = 0;
   this.menuItem7.Text = "&Cut";
   this.menuItem7.Click += new System.EventHandler(this.menuItem7_Click);
   //
   // menuItem8
   //
   this.menuItem8.Index = 1;
   this.menuItem8.Text = "&Copy";
   this.menuItem8.Click += new System.EventHandler(this.menuItem8_Click);
   //
   // menuItem9
   //
   this.menuItem9.Index = 2;
   this.menuItem9.Text = "Paste";
   this.menuItem9.Click += new System.EventHandler(this.menuItem9_Click);
   //
   // menuItem10
   //
   this.menuItem10.Index = 3;
   this.menuItem10.Text = "&Select All";
   this.menuItem10.Click += new System.EventHandler(this.menuItem10_Click);
   //
   // menuItem11
   //
   this.menuItem11.Index = 2;
   this.menuItem11.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
                        this.menuItem12,
                        this.menuItem16});
   this.menuItem11.Text = "帮助";
   //
   // menuItem12
   //
   this.menuItem12.Index = 0;
   this.menuItem12.Text = "About";
   this.menuItem12.Click += new System.EventHandler(this.menuItem12_Click);
   //
   // menuItem15
   //
   this.menuItem15.Index = 3;
   this.menuItem15.Text = "";
   //
   // saveFileDialog1
   //
   this.saveFileDialog1.FileName = "doc1";
   //
   // textBox1
   //
   this.textBox1.Dock = System.Windows.Forms.DockStyle.Fill;
   this.textBox1.Multiline = true;
   this.textBox1.Name = "textBox1";
   this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
   this.textBox1.Size = new System.Drawing.Size(544, 321);
   this.textBox1.TabIndex = 0;
   this.textBox1.Text = "";
   this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged_1);
   //
   // menuItem16
   //
   this.menuItem16.Index = 1;
   this.menuItem16.Text = "General";
   this.menuItem16.Click += new System.EventHandler(this.menuItem16_Click);
   //
   // notepad
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
   this.ClientSize = new System.Drawing.Size(544, 321);
   this.Controls.AddRange(new System.Windows.Forms.Control[] {
                    this.textBox1});
   this.ImeMode = System.Windows.Forms.ImeMode.Off;
   this.Menu = this.mainMenu1;
   this.Name = "notepad";
   this.Text = "Notepad By 【孟宪会之精彩世界】";
   this.Load += new System.EventHandler(this.Form1_Load);
   this.ResumeLayout(false);

  }
#endregion

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

  private void Form1_Load(object sender, System.EventArgs e)
  {

  }

  private void menuItem3_Click(object sender, System.EventArgs e)
  {
   // for opening file
   openFileDialog1.ShowDialog();
   StreamReader sr = new StreamReader(openFileDialog1.FileName);
   textBox1.Text = sr.ReadToEnd();
   sr.Close();
           
  }

  private void menuItem7_Click(object sender, System.EventArgs e)
  {
   Clipboard.SetDataObject(textBox1.SelectedText);
   textBox1.SelectedText="";

  }

  private void menuItem9_Click(object sender, System.EventArgs e)
  {
   textBox1.Paste();
  }

  private void textBox1_TextChanged(object sender, System.EventArgs e)
  {

  }

  private void menuItem12_Click(object sender, System.EventArgs e)
  {
   Form2 helpnew = new Form2();
   helpnew.Show();
   
  }

  private void textBox1_TextChanged_1(object sender, System.EventArgs e)
  {

  }

  private void menuItem5_Click(object sender, System.EventArgs e)
  {
 
  }

  private void menuItem5_Click_1(object sender, System.EventArgs e)
  {
   Dispose(true);
  }

  private void menuItem8_Click(object sender, System.EventArgs e)
  {
   textBox1.Copy();
  }

  private void menuItem10_Click(object sender, System.EventArgs e)
  {
   textBox1.SelectAll();

  }

  private void menuItem2_Click(object sender, System.EventArgs e)
  {
   textBox1.Clear();

  }

  private void menuItem4_Click(object sender, System.EventArgs e)
  {
   // for file save
   saveFileDialog1.FileName = "*.txt";
   //saveFileDialog1.FilterIndex ="*.txt";
   saveFileDialog1.ShowDialog();
   //MessageBox.Show (saveFileDialog1.FileName);
   StreamWriter sw = new StreamWriter(saveFileDialog1.FileName);
   sw.Write (textBox1.Text);
   sw.Close();
  }

  private void menuItem16_Click(object sender, System.EventArgs e)
  {
   Form3 gen = new Form3 ();
   gen.Show(); 

  }

 
 }
 public class Form3 : System.Windows.Forms.Form
 {
  /// <summary>
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form3()
  {
   //
   // Required for Windows Form Designer support
   //
   InitializeComponent();

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

  /// <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()
  {
   //
   // Form3
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Name = "Form3";
   this.Text = "Form3";
   this.Load += new System.EventHandler(this.Form3_Load);

  }
  #endregion

  private void Form3_Load(object sender, System.EventArgs e)
  {
  
  }
 }
 public class Form2 : System.Windows.Forms.Form
 {
  /// <summary>
  /// Required designer variable.
  /// </summary>
  private System.ComponentModel.Container components = null;

  public Form2()
  {
   //
   // Required for Windows Form Designer support
   //
   InitializeComponent();

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

  /// <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()
  {
   //
   // Form2
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(292, 273);
   this.Name = "Form2";
   this.Text = "Form2";
   this.Load += new System.EventHandler(this.Form2_Load);

  }
  #endregion

  private void Form2_Load(object sender, System.EventArgs e)
  {
  
  }
 }
}

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