多文档文本编辑器代码

多文档文本编辑器代码using System;using System.Collections.Generic;using ponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO;namespace WindowsApplication1{public partial class Form1 : Form{private string currentfilename;public string mainkey = null;public bool MaxOrMin;//处理文件名子程序private void setcurrentfilename(string filepath){currentfilename = filepath;this.Text = Path.GetFileName(currentfilename) + " -记事本"; }//窗口初始化程序public Form1(){InitializeComponent();撤销UToolStripMenuItem.Enabled = false;复制CToolStripMenuItem.Enabled = false;剪切TToolStripMenuItem.Enabled = false;删除LToolStripMenuItem.Enabled = false;if (Clipboard.ContainsText() == true){粘帖PToolStripMenuItem.Enabled = true;}else{粘帖PToolStripMenuItem.Enabled = false;}}{textBox1.Text = "";setcurrentfilename("无标题");}private void打开ToolStripMenuItem_Click(object sender, EventArgs e){if (openFileDialog1.ShowDialog() == DialogResult.OK){setcurrentfilename(openFileDialog1.FileName);textBox1.Text=File.ReadAllText(currentfilename);}}private void保存SToolStripMenuItem_Click(object sender, EventArgs e){if (currentfilename == null)currentfilename = "无标题";if (currentfilename != "无标题"){File.WriteAllText(currentfilename, textBox1.Text);}else{另存为AToolStripMenuItem_Click(sender,e);}}private void另存为AToolStripMenuItem_Click(object sender, EventArgs e) {if (saveFileDialog1.ShowDialog() == DialogResult.OK){File.WriteAllText(saveFileDialog1.FileName, textBox1.Text);setcurrentfilename(saveFileDialog1.FileName);}}private void页面设置UToolStripMenuItem_Click(object sender, EventArgs e) {this.pageSetupDialog1.Document = this.printDocument1;if (this.pageSetupDialog1.ShowDialog() == DialogResult.OK){this.printDocument1.Print();}}{PrintPreviewDialog printpreviewDialog = new PrintPreviewDialog();printpreviewDialog.Document = this.printDocument1;printpreviewDialog.ShowDialog();}private void退出ToolStripMenuItem_Click(object sender, EventArgs e){Application.Exit();}private void撤销UToolStripMenuItem_Click(object sender, EventArgs e){textBox1.Undo();}private void剪切TToolStripMenuItem_Click(object sender, EventArgs e){textBox1.Cut();粘帖PToolStripMenuItem.Enabled = true;}private void复制CToolStripMenuItem_Click(object sender, EventArgs e){textBox1.Copy();粘帖PToolStripMenuItem.Enabled = true;}private void粘帖PToolStripMenuItem_Click(object sender, EventArgs e){textBox1.Paste();}private void删除LToolStripMenuItem_Click(object sender, EventArgs e){textBox1.SelectedText="";}private void查找FToolStripMenuItem_Click(object sender, EventArgs e){Form2 f2 = new Form2();f2.mainform = this;f2.Show();}private void查找下一个NToolStripMenuItem_Click(object sender, EventArgs e) {Form3 f3 = new Form3();f3.mainform = this;f3.Show();}private void替换RToolStripMenuItem_Click(object sender, EventArgs e){Form3 f3 = new Form3();f3.mainform = this;f3.Show();f3.textBox1.Text = textBox1.SelectedText;}private void转到GToolStripMenuItem_Click(object sender, EventArgs e){Form4 f4 = new Form4();f4.mainform = this;f4.Show();}private void全选AToolStripMenuItem_Click(object sender, EventArgs e){textBox1.SelectAll();}private void timer1_Tick(object sender, EventArgs e){datetime.Text = DateTime.Now.ToString();}private void字体ToolStripMenuItem_Click(object sender, EventArgs e){if (fontDialog1.ShowDialog()==DialogResult.OK){textBox1.Font = fontDialog1.Font;}}private void帮助主题HToolStripMenuItem_Click(object sender, EventArgs e) {MessageBox.Show("帮助主题");}private void自动换行WToolStripMenuItem_Click(object sender, EventArgs e){if (自动换行WToolStripMenuItem.Checked == false){自动换行WToolStripMenuItem.Checked = true;textBox1.WordWrap = true;}else{自动换行WToolStripMenuItem.Checked = false;textBox1.WordWrap = false;}}private void编辑EToolStripMenuItem_Click(object sender, EventArgs e){if (Clipboard.GetDataObject().GetDataPresent(DataFormats.Text)) this.粘帖PToolStripMenuItem.Enabled = true;elsethis.粘帖PToolStripMenuItem.Enabled = false;if (textBox1.CanUndo)this.撤销UToolStripMenuItem.Enabled = true;elsethis.撤销UToolStripMenuItem.Enabled = false;if (textBox1.SelectedText.Length > 0){this.剪切TToolStripMenuItem.Enabled = true;this.复制CToolStripMenuItem.Enabled = true;this.删除LToolStripMenuItem.Enabled = true;}else{this.剪切TToolStripMenuItem.Enabled = false;this.复制CToolStripMenuItem.Enabled = false;this.删除LToolStripMenuItem.Enabled = false;}if (textBox1.Text.Length > 0){this.查找FToolStripMenuItem.Enabled = true;this.查找下一个NToolStripMenuItem.Enabled = true;this.替换RToolStripMenuItem.Enabled = true;}else{this.查找FToolStripMenuItem.Enabled = false;this.查找下一个NToolStripMenuItem.Enabled = false;this.替换RToolStripMenuItem.Enabled = false;}}private void状态栏SToolStripMenuItem_Click(object sender, EventArgs e) {if (状态栏SToolStripMenuItem.Checked == true){状态栏SToolStripMenuItem.Checked = false;statusStrip1.Visible = false;}else{状态栏SToolStripMenuItem.Checked =true;statusStrip1.Visible = true;}}private void时间日期DToolStripMenuItem_Click(object sender, EventArgs e) {textBox1.AppendText(DateTime.Now.ToString());}private void字体颜色ToolStripMenuItem_Click(object sender, EventArgs e) {if (colorDialog1.ShowDialog ()== DialogResult.OK){textBox1.ForeColor = colorDialog1.Color;}}private void背景颜色ToolStripMenuItem_Click(object sender, EventArgs e) {if (colorDialog1.ShowDialog() == DialogResult.OK){textBox1.BackColor = colorDialog1.Color;}}}}。