一个WinForm记事本程序(包含主/下拉/弹出菜单/打开文件/保存文件/打印/页面设置/字体/颜色对话框/剪切版操作等等控件用法以及记事本菜单

王朝system·作者佚名 2006-01-22

宽屏版字体: 小|中|大|超大

(一).说明

功能类似Windows 操作系统自带的记事本. 一个WinForm记事本程序(包含主/下拉/弹出

菜单/打开保存对话框等控件用法以及记事本菜单事件的具体代码)

(二).图片示例

(三).代码

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.IO;

using System.Drawing.Printing;

using System.Data;

namespace 记事本

{

/// <summary>

/// Form1 的摘要说明。

/// </summary>

public class FormMain : System.Windows.Forms.Form

{

private System.Windows.Forms.TextBox textBoxEdit;

/// <summary>

/// 必需的设计器变量。

/// </summary>

private System.ComponentModel.Container components = null;

private System.Windows.Forms.MainMenu mainMenu1;

private System.Windows.Forms.MenuItem menuItem8;

private System.Windows.Forms.MenuItem menuItem11;

private System.Windows.Forms.MenuItem menuItem14;

private System.Windows.Forms.MenuItem menuItem19;

private System.Windows.Forms.MenuItem menuItem22;

private System.Windows.Forms.MenuItem menuItemFile;

private System.Windows.Forms.MenuItem menuItemEdit;

private System.Windows.Forms.MenuItem menuItemFormat;

private System.Windows.Forms.MenuItem menuItemNew;

private System.Windows.Forms.MenuItem menuItemOpen;

private System.Windows.Forms.MenuItem menuItemSave;

private System.Windows.Forms.MenuItem menuItemSaveAs;

private System.Windows.Forms.MenuItem menuItemPageSet;

private System.Windows.Forms.MenuItem menuItemPrint;

private System.Windows.Forms.MenuItem menuItemExit;

private System.Windows.Forms.MenuItem menuItemUndo;

private System.Windows.Forms.MenuItem menuItemCut;

private System.Windows.Forms.MenuItem menuItemCopy;

private System.Windows.Forms.MenuItem menuItemPaste;

private System.Windows.Forms.MenuItem menuItemDel;

private System.Windows.Forms.MenuItem menuItemSelAll;

private System.Windows.Forms.MenuItem menuItemWordWrap;

private System.Windows.Forms.MenuItem menuItemFont;

private System.Windows.Forms.MenuItem menuItemColor;

const int MaxLenght=2000000;

private string currentFileName;

private System.Drawing.Printing.PrintDocument printDocument=new PrintDocument();

private bool needToSave;

public FormMain()

{

// 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 Form Designer generated code

/// <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.textBoxEdit = new System.Windows.Forms.TextBox();

this.mainMenu1 = new System.Windows.Forms.MainMenu();

this.menuItemFile = new System.Windows.Forms.MenuItem();

this.menuItemNew = new System.Windows.Forms.MenuItem();

this.menuItemOpen = new System.Windows.Forms.MenuItem();

this.menuItemSave = new System.Windows.Forms.MenuItem();

this.menuItemSaveAs = new System.Windows.Forms.MenuItem();

this.menuItem8 = new System.Windows.Forms.MenuItem();

this.menuItemPageSet = new System.Windows.Forms.MenuItem();

this.menuItemPrint = new System.Windows.Forms.MenuItem();

this.menuItem11 = new System.Windows.Forms.MenuItem();

this.menuItemExit = new System.Windows.Forms.MenuItem();

this.menuItemEdit = new System.Windows.Forms.MenuItem();

this.menuItemUndo = new System.Windows.Forms.MenuItem();

this.menuItem14 = new System.Windows.Forms.MenuItem();

this.menuItemCut = new System.Windows.Forms.MenuItem();

this.menuItemCopy = new System.Windows.Forms.MenuItem();

this.menuItemPaste = new System.Windows.Forms.MenuItem();

this.menuItemDel = new System.Windows.Forms.MenuItem();

this.menuItem19 = new System.Windows.Forms.MenuItem();

this.menuItemSelAll = new System.Windows.Forms.MenuItem();

this.menuItemFormat = new System.Windows.Forms.MenuItem();

this.menuItemWordWrap = new System.Windows.Forms.MenuItem();

this.menuItem22 = new System.Windows.Forms.MenuItem();

this.menuItemFont = new System.Windows.Forms.MenuItem();

this.menuItemColor = new System.Windows.Forms.MenuItem();

this.SuspendLayout();

// textBoxEdit

this.textBoxEdit.AcceptsTab = true;

this.textBoxEdit.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));

this.textBoxEdit.Cursor = System.Windows.Forms.Cursors.Arrow;

this.textBoxEdit.Dock = System.Windows.Forms.DockStyle.Fill;

this.textBoxEdit.Location = new System.Drawing.Point(0, 0);

this.textBoxEdit.MaxLength = 2000000;

this.textBoxEdit.Multiline = true;

this.textBoxEdit.Name = "textBoxEdit";

this.textBoxEdit.ScrollBars = System.Windows.Forms.ScrollBars.Both;

this.textBoxEdit.Size = new System.Drawing.Size(442, 393);

this.textBoxEdit.TabIndex = 0;

this.textBoxEdit.Text = "Hello ChengKing !";

this.textBoxEdit.WordWrap = false;

this.textBoxEdit.TextChanged += new System.EventHandler(this.textBoxEdit_TextChanged);

// mainMenu1

this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

this.menuItemFile,

this.menuItemEdit,

this.menuItemFormat});

// menuItemFile

this.menuItemFile.Index = 0;

this.menuItemFile.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

this.menuItemNew,

this.menuItemOpen,

this.menuItemSave,

this.menuItemSaveAs,

this.menuItem8,

this.menuItemPageSet,

this.menuItemPrint,

this.menuItem11,

this.menuItemExit});

this.menuItemFile.Text = "文件(&F)";

// menuItemNew

this.menuItemNew.Index = 0;

this.menuItemNew.Shortcut = System.Windows.Forms.Shortcut.CtrlN;

this.menuItemNew.Text = "新建(&N)";

this.menuItemNew.Click += new System.EventHandler(this.menuItemNew_Click);

// menuItemOpen

this.menuItemOpen.Index = 1;

this.menuItemOpen.Shortcut = System.Windows.Forms.Shortcut.CtrlO;

this.menuItemOpen.Text = "打开(O)...";

this.menuItemOpen.Click += new System.EventHandler(this.menuItem5_Click);

// menuItemSave

this.menuItemSave.Index = 2;

this.menuItemSave.Shortcut = System.Windows.Forms.Shortcut.CtrlS;

this.menuItemSave.Text = "保存(&S)";

this.menuItemSave.Click += new System.EventHandler(this.menuItemSave_Click);

// menuItemSaveAs

this.menuItemSaveAs.Index = 3;

this.menuItemSaveAs.Text = "另存为(A)...";

this.menuItemSaveAs.Click += new System.EventHandler(this.menuItemSaveAs_Click);

// menuItem8

this.menuItem8.Index = 4;

this.menuItem8.Text = "-";

// menuItemPageSet

this.menuItemPageSet.Index = 5;

this.menuItemPageSet.Text = "页面设置(U)...";

this.menuItemPageSet.Click += new System.EventHandler(this.menuItemPageSet_Click);

// menuItemPrint

this.menuItemPrint.Index = 6;

this.menuItemPrint.Shortcut = System.Windows.Forms.Shortcut.CtrlP;

this.menuItemPrint.Text = "打印(&P)";

this.menuItemPrint.Click += new System.EventHandler(this.menuItemPrint_Click);

// menuItem11

this.menuItem11.Index = 7;

this.menuItem11.Text = "-";

// menuItemExit

this.menuItemExit.Index = 8;

this.menuItemExit.Text = "退出(&X)";

this.menuItemExit.Click += new System.EventHandler(this.menuItemExit_Click);

// menuItemEdit

this.menuItemEdit.Index = 1;

this.menuItemEdit.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

this.menuItemUndo,

this.menuItem14,

this.menuItemCut,

this.menuItemCopy,

this.menuItemPaste,

this.menuItemDel,

this.menuItem19,

this.menuItemSelAll});

this.menuItemEdit.Text = "编辑(&E)";

this.menuItemEdit.Popup += new System.EventHandler(this.menuItemEdit_Popup);

// menuItemUndo

this.menuItemUndo.Index = 0;

this.menuItemUndo.Shortcut = System.Windows.Forms.Shortcut.CtrlZ;

this.menuItemUndo.Text = "撤消(&U)";

this.menuItemUndo.Click += new System.EventHandler(this.menuItemUndo_Click);

// menuItem14

this.menuItem14.Index = 1;

this.menuItem14.Text = "-";

// menuItemCut

this.menuItemCut.Index = 2;

this.menuItemCut.Shortcut = System.Windows.Forms.Shortcut.CtrlX;

this.menuItemCut.Text = "剪切(&T)";

this.menuItemCut.Click += new System.EventHandler(this.menuItemCut_Click);

// menuItemCopy

this.menuItemCopy.Index = 3;

this.menuItemCopy.Shortcut = System.Windows.Forms.Shortcut.CtrlC;

this.menuItemCopy.Text = "复制(&C)";

this.menuItemCopy.Click += new System.EventHandler(this.menuItemCopy_Click);

// menuItemPaste

this.menuItemPaste.Index = 4;

this.menuItemPaste.Shortcut = System.Windows.Forms.Shortcut.CtrlP;

this.menuItemPaste.Text = "粘贴(&P)";

this.menuItemPaste.Click += new System.EventHandler(this.menuItemPaste_Click);

// menuItemDel

this.menuItemDel.Index = 5;

this.menuItemDel.Shortcut = System.Windows.Forms.Shortcut.Del;

this.menuItemDel.Text = "删除(&L)";

this.menuItemDel.Click += new System.EventHandler(this.menuItemDel_Click);

// menuItem19

this.menuItem19.Index = 6;

this.menuItem19.Text = "-";

// menuItemSelAll

this.menuItemSelAll.Index = 7;

this.menuItemSelAll.Shortcut = System.Windows.Forms.Shortcut.CtrlA;

this.menuItemSelAll.Text = "全选(&A)";

this.menuItemSelAll.Click += new System.EventHandler(this.menuItemSelAll_Click);

// menuItemFormat

this.menuItemFormat.Index = 2;

this.menuItemFormat.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {

this.menuItemWordWrap,

this.menuItem22,

this.menuItemFont,

this.menuItemColor});

this.menuItemFormat.Text = "格式(&O)";

// menuItemWordWrap

this.menuItemWordWrap.Index = 0;

this.menuItemWordWrap.Text = "自动换行(&W)";

// menuItem22

this.menuItem22.Index = 1;

this.menuItem22.Text = "-";

// menuItemFont

this.menuItemFont.Index = 2;

this.menuItemFont.Text = "字体(&F)...";

this.menuItemFont.Click += new System.EventHandler(this.menuItemFont_Click);

// menuItemColor

this.menuItemColor.Index = 3;

this.menuItemColor.Text = "背景颜色(&C)...";

this.menuItemColor.Click += new System.EventHandler(this.menuItemColor_Click);

// FormMain

this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);

this.ClientSize = new System.Drawing.Size(442, 393);

this.Controls.Add(this.textBoxEdit);

this.Menu = this.mainMenu1;

this.Name = "FormMain";

this.Text = "ChengKing Rote";

this.Closing += new System.ComponentModel.CancelEventHandler(this.FormMain_Closing);

this.Load += new System.EventHandler(this.FormMain_Load);

this.ResumeLayout(false);

}

#endregion

/// <summary>

/// 应用程序的主入口点。

/// </summary>

[STAThread]

static void Main()

{

Application.Run(new FormMain());

}

private void FormMain_Load(object sender, System.EventArgs e)

{

//textBoxEdit.MaxLength=MaxLength;

//textBoxEdit.Multiline=t

}

private void textBoxEdit_TextChanged(object sender, System.EventArgs e)

{

needToSave=true;

}

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

{

if(needToSave==true)

{

DialogResult result=MessageBox.Show("文本内容已经改变,需要保存吗?","保存文件",MessageBoxButtons.YesNoCancel,MessageBoxIcon.Question);

if(result==DialogResult.Cancel)

{

return;

}

if(result==DialogResult.Yes)

{

menuItemSave_Click(sender,e);

needToSave=false;

}

string file=GetOpenFile();

if(file==null)

{

return;

}

else

{

currentFileName=file;

OpenFile();

}

private void OpenFile()

{

try

{

FileInfo f=new FileInfo(currentFileName);

StreamReader reader=f.OpenText();

textBoxEdit.Text=reader.ReadToEnd();

reader.Close();

this.Text="文本编辑--"+f.Name;

}

catch(Exception e)

{

MessageBox.Show(e.Message);

}

private string GetOpenFile()

{

OpenFileDialog openFile=new OpenFileDialog();

openFile.Title="打开文本文件";

openFile.CheckFileExists=true;

openFile.CheckPathExists=true;

openFile.AddExtension=true;

openFile.Multiselect=false;

openFile.Filter="文本文件 (*.txt)|*.txt|所有文件 (*.*)|*.*";

if(openFile.ShowDialog()==DialogResult.OK)

{

return openFile.FileName;

}

else

{

return null;

}

private void menuItemExit_Click(object sender, System.EventArgs e)

{

this.Close();

}

private void menuItemUndo_Click(object sender, System.EventArgs e)

{

if(textBoxEdit.CanUndo==true)

{

textBoxEdit.Undo();

textBoxEdit.ClearUndo();

}

private void menuItemCut_Click(object sender, System.EventArgs e)

{

if(textBoxEdit.SelectedText!="")

{

textBoxEdit.Cut();

}

private void menuItemCopy_Click(object sender, System.EventArgs e)

{

if(textBoxEdit.SelectionLength>0)

{

textBoxEdit.Copy();

}

private void menuItemPaste_Click(object sender, System.EventArgs e)

{

if(Clipboard.GetDataObject().GetDataPresent(DataFormats.Text)==true)

{

if(textBoxEdit.SelectionLength>0)

{

DialogResult result;

result=MessageBox.Show("你想覆盖掉选择的文本吗?","覆盖确认",MessageBoxButtons.YesNo);

if(result==DialogResult.No)

{

textBoxEdit.SelectionStart=textBoxEdit.SelectionStart+textBoxEdit.SelectionLength;

}

textBoxEdit.Paste();

}

private void menuItemDel_Click(object sender, System.EventArgs e)

{

textBoxEdit.SelectedText.Remove(0,textBoxEdit.SelectionLength);

textBoxEdit.SelectedText="";

}

private void menuItemSelAll_Click(object sender, System.EventArgs e)

{

textBoxEdit.SelectAll();

}

private void menuItemEdit_Popup(object sender, System.EventArgs e)

{

if(Clipboard.GetDataObject().GetDataPresent(DataFormats.Text))

{

menuItemPaste.Enabled=true;

}

else

{

menuItemPaste.Enabled=false;

}

if(textBoxEdit.SelectionLength>0)

{

menuItemCopy.Enabled=true;

menuItemCut.Enabled=true;

menuItemDel.Enabled=true;

}

else

{

menuItemCopy.Enabled=false;

menuItemCut.Enabled=false;

menuItemDel.Enabled=false;

}

if(textBoxEdit.CanUndo==true)

{

menuItemUndo.Enabled=true;

}

else

{

menuItemUndo.Enabled=false;

}

private void menuItemSave_Click(object sender, System.EventArgs e)

{

if(currentFileName==null)

{

menuItemSaveAs_Click(sender,e);

}

else

{

SaveFile(textBoxEdit.Text);

}

needToSave=false;

}

private void menuItemSaveAs_Click(object sender, System.EventArgs e)

{

string file=GetSaveFile();

if(file==null)

{

return;

}

else

{

currentFileName=file;

SaveFile(textBoxEdit.Text);

FileInfo f=new FileInfo(currentFileName);

this.Text="文本编辑--"+f.Name;

needToSave=false;

}

private void SaveFile(string str)

{

try

{

StreamWriter writer=new StreamWriter(currentFileName);

writer.Write(str);

writer.Close();

}

catch(Exception e)

{

MessageBox.Show(e.Message);

}

private string GetSaveFile()

{

SaveFileDialog saveFile=new SaveFileDialog();

saveFile.Title="保存文本文件";

saveFile.OverwritePrompt=true;

saveFile.CreatePrompt=true;

saveFile.AddExtension=true;

saveFile.Filter="文本文件 (*.txt)|*.txt|所有文件 (*.*)|*.*";

if(saveFile.ShowDialog()==DialogResult.OK)

{

return saveFile.FileName;

}

else

{

return null;

}

private void menuItemFont_Click(object sender, System.EventArgs e)

{

FontDialog fontDialog=new FontDialog();

fontDialog.ShowColor=true;

fontDialog.AllowScriptChange=true;

fontDialog.AllowVectorFonts=true;

fontDialog.ShowEffects=true;

if(fontDialog.ShowDialog()==DialogResult.OK)

{

textBoxEdit.Font=fontDialog.Font;

textBoxEdit.ForeColor=fontDialog.Color;

}

private void menuItemColor_Click(object sender, System.EventArgs e)

{

ColorDialog colorDialog=new ColorDialog();

colorDialog.AllowFullOpen=true;

colorDialog.AnyColor=true;

colorDialog.FullOpen=true;

if(colorDialog.ShowDialog()==DialogResult.OK)

{

textBoxEdit.BackColor=colorDialog.Color;

}

private void menuItemPrint_Click(object sender, System.EventArgs e)

{

PrintDialog printDialog=new PrintDialog();

printDialog.Document=printDocument;

if(printDialog.ShowDialog()==DialogResult.OK)

{

try

{

printDocument.Print();

}

catch(Exception e2)

{

MessageBox.Show(e2.Message);

}

private void printDocument_PrintPage(object sender,PrintPageEventArgs e)

{

float linesPerPage=0;

float yPos=0;

int count=0;

float leftMargin=e.MarginBounds.Left;

float topMargin=e.MarginBounds.Top;

string line=null;

StreamReader streamToPrint=new StreamReader(currentFileName);

SolidBrush brush=new SolidBrush(textBoxEdit.ForeColor);

linesPerPage=e.MarginBounds.Height/textBoxEdit.Font.GetHeight(e.Graphics);

while(count<linesPerPage&&((line=streamToPrint.ReadLine())!=null))

{

yPos=topMargin+(count*textBoxEdit.Font.GetHeight(e.Graphics));

e.Graphics.DrawString(line,textBoxEdit.Font,brush,leftMargin,yPos,new StringFormat());

count++;

}

if(line!=null)

{

e.HasMorePages=true;

}

else

{

e.HasMorePages=false;

}

private void menuItemPageSet_Click(object sender, System.EventArgs e)

{

PageSetupDialog pageSet=new PageSetupDialog();

pageSet.Document=printDocument;

pageSet.ShowDialog();

}

private void FormMain_Closing(object sender, System.ComponentModel.CancelEventArgs e)

{

if(needToSave==true)

{

DialogResult result=MessageBox.Show("文本内容已经改变,需要保存吗?","保存文件",MessageBoxButtons.YesNoCancel,MessageBoxIcon.Question);

if(result==DialogResult.Cancel)

{

e.Cancel=true;

return;

}

if(result==DialogResult.Yes)

{

menuItemSave_Click(sender,e);

e.Cancel=false;

return;

}

private void menuItemNew_Click(object sender, System.EventArgs e)

{

if(needToSave==true)

{

DialogResult result=MessageBox.Show("文本内容已经改变,需要保存吗?","保存文件",MessageBoxButtons.YesNoCancel,MessageBoxIcon.Question);

switch(result)

{

case DialogResult.Yes:

{

menuItemSave_Click(sender,e);

textBoxEdit.Clear();

this.Text="文本编辑--新建文本";

needToSave=false;

break;

}

case DialogResult.No:

{

textBoxEdit.Clear();

this.Text="文本编辑--新建文本";

needToSave=false;

break;

}

case DialogResult.Cancel:

{

break;

}

else

{

textBoxEdit.Clear();

this.Text="文本编辑新建文本";

}

(四).代码示例下载

http://www.cnblogs.com/Files/ChengKing/记事本.rar