记事本代码

}
}
//另存为：
private void MenuItem10_Click(object sender, EventArgs e)
{
try
{
saveFileDialog1.Title = "另存为";
stsavename = "";
this.Text = "新建－记事本";
textBox1.Modified = false;
}
}
//打开文件
StreamReader sr = new StreamReader(openFileDialog1.FileName, Encoding.Default);
stsavename = openFileDialog1.FileName;
stsavename = "";
this.Text = "新建－记事本";
break;
case DialogResult.No:
}
}
//处理异常事件
catch (Exception error)
{
MessageBox.Show(error.Message.ToString());
private void MenuItem8_Click(object sender, EventArgs e)
{
try//捕获异常事件
{
//如果当前文本内容被修改，则提示保存
if (textBox1.Modified == true)
this.Text = Path.GetFileNameWithoutExtension(stsavename) + "－记事本";
textBox1.Text = sr.ReadToEnd();
sr.Close();
//新建文本
private void MenuItem7_Click(object sender, EventArgs e)
{
//如果当前文本内容处于修改状态，则提示保存
if (textBox1.Modified == true)
{
DialogResult re = MessageBox.Show("文件" + Text + "的内容已改变，需要保存吗？", "保存文件", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
{
this.MenuItem9_Click(sender, e);
}
}
openFileDialog1.Title = "打开";
sw.Write(textBox1);
textBox1.Modified = false;
stsavename = saveFileDialog1.FileName;
}
}
//保存文件
private void MenuItem9_Click(object sender, EventArgs e)
{
//捕获异常事件
try
using System.IO;
using System.Runtime.InteropServices;
//引用类的申明
namespace WindowsApplication1//名称空间的申明
{
public partial class MainForm : Form//主窗口
if (re == DialogResult.Cancel)
{
return;
}
if (re == DialogResult.OK)
saveFileDialog1.FileName = "*.txt";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
StreamWriter sw = new StreamWriter(saveFileDialog1.FileName);
{
//提示保存对话框
DialogResult re = MessageBox.Show("文件" + this.Text + "的内容已经改变,是否需要保存？", "保存文件", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
textBox1.Modified = false;
}
}
//处理异常事件
catch (Exception er)
{
MessageBox.Show(er.Message.ToString());
case DialogResult.Cancel:
break;
}
}
else
{
textBox1.Clear();
openFileDialog1.FileName = "";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
//打开选定路径上的文件 Nhomakorabea if (stsavename == "")
{
saveFileDialog1.Title = "保存";
saveFileDialog1.FileName = "*.txt";
sw.Close();
textBox1.Modified = false;
this.Text = Path.GetFileNameWithoutExtension(saveFileDialog1.FileName) + "－记事本";
using (StreamWriter sw = new StreamWriter(saveFileDialog1.FileName))
{
sw.Write(textBox1);
switch (re)
{
case DialogResult.Yes:
this.MenuItem9_Click(sender, e);
textBox1.Clear();
}
}
}
else
{
textBox1.SaveFile(stsavename, RichTextBoxStreamType.PlainText);
using System;
using System.Collections.Generic;
using ponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
textBox1.Clear();
stsavename = "";
this.Text = "新建－记事本";
break;
sw.Close();
this.Text = Path.GetFileNameWithoutExtension(saveFileDialog1.FileName) + "－记事本";
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
//保存的实现
stsavename = saveFileDialog1.FileName;
{
public MainForm()
{
InitializeComponent();
}
//
//人机交互是通过操作人员对事件的操作来实现的，以下为事件的实现代码
//