1、C#文本编辑器 实验报告实验3 文本编辑器【实验目的】 进一步实践windows窗口程序开发的流程； 掌握并熟练使用RichTextBox、Button、MenuTrip控件。【实验环境】 Visual Studio 2005（或更高版本）【实验内容】设计一个基于RichTextBox的文本编辑器，要求实现文件打开、保存、字体和颜色修改、字符查找和替换功能，鼓励扩展其他功能。【实验结果】文件菜单：打开程序编辑文本-文件-保存保存结果：编辑文本：文件-打开（文件已修改打开询问保存）点击“是”-继续打开此文件（点击“取消”或者关闭提示则不执行打开 “否”则不保存）打开后：（上次打开操作保存结果在本
2、次打开中体现）文件-另存为另存为结果：编辑文本文件-退出（退出提示保存）点击“否”（点击“取消”或者关闭提示则不执行退出 “是”则保存）设置文件打开方式为 本实验程序双击文件：使用本实验程序进行打开（由于上一次退出前选择“否”文本没有保存“准备退出”）不修改文本 文件-退出(由于文件没有修改不提示保存直接退出 关闭窗口同理)编辑菜单：编辑-查找（不演示撤销等操作、没有查找内容“查找下一个”处于禁用）输入查找内容 点击“查找下一个”：再次点击“查找下一个”：打钩 区分大小写 选择方向向上两次点击“查找下一个”：取消打钩 区分大小写编辑-查找（没有查找内容和替换“查找下一个”“替换”.处于禁用）打
3、钩 区分大小写 输入查找内容和替换内容 点击两次替换取消打钩 区分大小写 点击全部替换格式菜单：格式-字体确定后：格式-颜色确定后：格式-对齐方式全选 格式-对齐方式-右对齐（不演示居中）帮助-关于【实验核心代码】 Form1（主窗口）：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;names
4、pace FileEdit public partial class Form1 : Form private string filename; private RichTextBox rtb = new RichTextBox(); public Form1(string path) InitializeComponent(); filename = path; private void 打开OToolStripMenuItem_Click(object sender, EventArgs e) if (!richTextBox1.Text.Equals(rtb.Text) DialogRe
5、sult result = MessageBox.Show(是否将更改保存到 + filename, , MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question); if (result = DialogResult.Yes) this.保存SToolStripMenuItem_Click(sender, e); else if (result = DialogResult.Cancel) return; OpenFileDialog open = new OpenFileDialog(); open.Filter = Word文档(*.r
6、tf)|*.rtf; if (open.ShowDialog() = DialogResult.OK) richTextBox1.LoadFile(open.FileName, RichTextBoxStreamType.RichText); rtb.Text = richTextBox1.Text; filename = open.FileName; this.Text = filename.Substring(filename.LastIndexOf() + 1) + - 文本编辑器; private void 复制CToolStripMenuItem_Click(object sende
7、r, EventArgs e) richTextBox1.Copy(); private void 剪切ToolStripMenuItem_Click(object sender, EventArgs e) richTextBox1.Cut(); private void 粘贴VToolStripMenuItem_Click(object sender, EventArgs e) richTextBox1.Paste(); private void 保存SToolStripMenuItem_Click(object sender, EventArgs e) if (filename = 无标题
8、)? SaveFileDialog dlgSave=new SaveFileDialog(); dlgSave.InitialDirectory=c:tmp; dlgSave.Filter = Word文档(*.rtf)|*.rtf; dlgSave.Title=保存我的文件; if(dlgSave.ShowDialog()=DialogResult.OK) filename=dlgSave.FileName; richTextBox1.SaveFile(filename,?RichTextBoxStreamType.RichText); else richTextBox1.SaveFile(
9、filename, RichTextBoxStreamType.RichText); rtb.Text = richTextBox1.Text; private void 新建NToolStripMenuItem_Click(object sender, EventArgs e) if (!richTextBox1.Text.Equals(rtb.Text) DialogResult result = MessageBox.Show(是否将更改保存到 + filename, , MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question); i
10、f (result = DialogResult.Yes) this.保存SToolStripMenuItem_Click(sender, e); else if (result = DialogResult.Cancel) return; richTextBox1.Text = ; filename = 无标题; this.Text = filename + - 文本编辑器; private void 另存为ToolStripMenuItem_Click(object sender, EventArgs e) SaveFileDialog dlgSave = new SaveFileDial
11、og(); dlgSave.InitialDirectory = c:tmp; dlgSave.Filter = Word文档(*.rtf)|*.rtf; dlgSave.Title = 保存我的文件; if (dlgSave.ShowDialog() = DialogResult.OK) filename = dlgSave.FileName; richTextBox1.SaveFile(filename, RichTextBoxStreamType.RichText); rtb.Text = richTextBox1.Text; private void 撤销ToolStripMenuIt
12、em_Click(object sender, EventArgs e) richTextBox1.Undo(); private void 查找ToolStripMenuItem_Click(object sender, EventArgs e) Formcz cz = new Formcz(richTextBox1); cz.Owner = this; cz.Show(); private void 替换ToolStripMenuItem_Click(object sender, EventArgs e) Formth th = new Formth(); th.Textbox = ric
13、hTextBox1; th.Owner = this; th.Show(); private void 字体ToolStripMenuItem_Click(object sender, EventArgs e) FontDialog dlgFont = new FontDialog(); dlgFont.ShowColor = true; dlgFont.ShowApply = true; if (richTextBox1.SelectionLength 0) dlgFont.Font = richTextBox1.SelectionFont; dlgFont.Color = richText
14、Box1.SelectionColor; else dlgFont.Font = richTextBox1.Font; dlgFont.Color = richTextBox1.ForeColor; if (dlgFont.ShowDialog() = DialogResult.OK) if (richTextBox1.SelectionLength 0) richTextBox1.SelectionFont = dlgFont.Font; richTextBox1.SelectionColor = dlgFont.Color; else richTextBox1.Font = dlgFont
15、.Font; richTextBox1.ForeColor = dlgFont.Color; private void 颜色ToolStripMenuItem_Click(object sender, EventArgs e) ColorDialog dlgColor = new ColorDialog(); if (richTextBox1.SelectionLength 0) dlgColor.Color = richTextBox1.SelectionColor; else dlgColor.Color = richTextBox1.ForeColor; if (dlgColor.Sho
16、wDialog() = DialogResult.OK) if (richTextBox1.SelectionLength 0) richTextBox1.SelectionColor = dlgColor.Color; else richTextBox1.ForeColor = dlgColor.Color; private void 左对齐ToolStripMenuItem_Click(object sender, EventArgs e) 右对齐ToolStripMenuItem.Checked = false; 居中ToolStripMenuItem.Checked = false;
17、richTextBox1.SelectionAlignment = HorizontalAlignment.Left; private void 右对齐ToolStripMenuItem_Click(object sender, EventArgs e) 左对齐ToolStripMenuItem.Checked = false; 居中ToolStripMenuItem.Checked = false; richTextBox1.SelectionAlignment = HorizontalAlignment.Right; private void 居中ToolStripMenuItem_Cli
18、ck(object sender, EventArgs e) 左对齐ToolStripMenuItem.Checked = false; 右对齐ToolStripMenuItem.Checked = false; richTextBox1.SelectionAlignment = HorizontalAlignment.Center; private void 关于ToolStripMenuItem1_Click(object sender, EventArgs e) MessageBox.Show(作者：软件1201 58号 林鑫杰n编写时间：2014年9月28, 关于, MessageBo
19、xButtons.OK, MessageBoxIcon.Information); private void Form1_Load(object sender, EventArgs e) richTextBox1.Text = ; rtb.Text = richTextBox1.Text; if (filename = null) filename = 无标题; this.Text = filename + - 文本编辑器; else richTextBox1.LoadFile(filename, RichTextBoxStreamType.RichText); rtb.Text = rich
20、TextBox1.Text; this.Text = filename.Substring(filename.LastIndexOf() + 1) + - 文本编辑器; private void Form1_FormClosing(object sender, FormClosingEventArgs e) if (!richTextBox1.Text.Equals(rtb.Text) DialogResult result = MessageBox.Show(是否将更改保存到 + filename, 退出, MessageBoxButtons.YesNoCancel, MessageBoxI
21、con.Question); if (result = DialogResult.No) e.Cancel = false; else if (result = DialogResult.Yes) this.保存SToolStripMenuItem_Click(sender, e); private void 退出ToolStripMenuItem_Click(object sender, EventArgs e) this.Close(); private void 全选ToolStripMenuItem_Click(object sender, EventArgs e) richTextB
22、ox1.SelectAll(); Form2（查找窗口）：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace FileEdit public partial class Formcz : Form private RichTextBox textbox; private stat
23、ic int i; private static int j; public Formcz(RichTextBox textbox) InitializeComponent(); this.textbox = textbox; j = textbox.Text.Length; i = 0; private void button1_Click(object sender, EventArgs e) if (radioButton1.Checked) if (checkBox1.Checked) j = textbox.Find(textBox1.Text, 0, j, RichTextBoxF
24、inds.Reverse | RichTextBoxFinds.MatchCase); else j = textbox.Find(textBox1.Text, 0, j, RichTextBoxFinds.Reverse | RichTextBoxFinds.WholeWord); else if (checkBox1.Checked) i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.MatchCase); else i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.WholeWor
25、d); if (i = -1) i = 0; else i += textBox1.Text.Length; textbox.Focus(); if (j = 0) j = textbox.Text.Length; else textbox.Focus(); private void button2_Click(object sender, EventArgs e) this.Close(); private void textBox1_TextChanged(object sender, EventArgs e) if (this.textBox1.Text != ) this.button
26、1.Enabled = true; else this.button1.Enabled = false; private void radioButton2_CheckedChanged(object sender, EventArgs e) if (radioButton2.Checked = true) radioButton2.Checked = false; else radioButton1.Checked = true; j = textbox.Text.Length; i = 0; private void radioButton2_CheckedChanged_1(object
27、 sender, EventArgs e) j = textbox.Text.Length; i = 0; Form3（替换窗口）：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace FileEdit public partial class Formth : Form priv
28、ate RichTextBox textbox; public RichTextBox Textbox get return this.textbox; set this.textbox = value; private int i; public Formth() InitializeComponent(); private void button1_Click(object sender, EventArgs e) if (checkBox1.Checked) i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.MatchCase); e
29、lse i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.None); if (i = -1) i = 0; else i += textBox1.Text.Length; textbox.Focus(); private void button2_Click(object sender, EventArgs e) if (checkBox1.Checked) i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.MatchCase); else i = textbox.Find(textBox1.Text, i, RichTextBoxFinds.None); if (i = -1) i = 0; else textbox.SelectedText = te
