C# richTextBox编辑器

附件：http://files.cnblogs.com/xe2011/CSHARP_RichTextBoxEditor.rar

完整的转到这里 http://www.cnblogs.com/xe2011/p/3449333.html

主要的类

 using System;
 //using System.Collections.Generic;
 //using System.Linq;
 using System.Text;
 using System.Drawing;
 //using System.Windows.Forms;
 using System.Runtime.InteropServices;
 using System.Drawing.Printing;
 using System.ComponentModel;
 using System.IO;
 using RichTextBoxCtrl;
 using richTextBoxTableClass;

 #region 添加引用 说明
 //右键选中 引用 添加引用
 //在“添加引用”对话框中，
 //双击“System.Drawing.dll”和
 //“System.Windows.Forms.dll”，然后单击“确定”。
 #endregion

 namespace System.Windows.Forms
 {
     public class RichTextBoxCtrl : RichTextBox
     {

         #region RichTextBox初始化属性
         /// <summary>
         /// richTextBox1 = this;
         /// </summary>
         private System.Windows.Forms.RichTextBox richTextBox1;

         public RichTextBoxCtrl()
         {
             richTextBox1 = this;
             AllowDrop = true;
             EnableAutoDragDrop = true;
             AcceptsTab = true;
             HideSelection = false;
             ScrollBars = RichTextBoxScrollBars.Vertical;
             InitialRichTextBoxCtrl();

         }
         #endregion

         #region RichTextBox 新建 打开 和 保存 文件对话框

         private string fileName = "未命名.rtf";
         private string absFileName = "";

         //文件名 返回 如 abc.rtf
         public string FileName
         {
             get{
                 return fileName;
             }
         }

         //格式 C:\windows\abc.rtf
         public string AbsFileName
         {
             get {
                 return absFileName;
             }
         }

         /// <summary>
         /// 判断文件是否保存了
         /// </summary>
         private void CheckFileSave()
         {
             if (this.Modified)
             {
                 string msg = "";
                 if (File.Exists(absFileName))
                     msg = "文档已修改是否保存:" + fileName;
                 else
                     msg = "文档已修改是否保存";

                 DialogResult Result = MessageBox.Show(msg, "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                 if (Result == DialogResult.Yes)
                 {
                     if (File.Exists(absFileName))
                         richTextBox1.SaveFile(absFileName);
                     else
                         this.ShowSaveFileDlg();
                 }
             }
         }

         /// <summary>
         /// 新空的文档
         /// </summary>
         public void NewDocument()
         {
             CheckFileSave();

             richTextBox1.Text = "";
             richTextBox1.Modified = false;

             absFileName = "";
             fileName = "";
         }

         /// <summary>
         /// 打开文件
         /// </summary>
         public void ShowOpenFileDlg()
         {
             CheckFileSave();

             OpenFileDialog openFileDialog1 = new OpenFileDialog();
             openFileDialog1.DefaultExt = ".rtf";
             openFileDialog1.Filter = "RTF 文档(*.rtf)|*.rtf|所有文件(*.*)|*.*";
             if (openFileDialog1.ShowDialog() == DialogResult.OK)
             {
                 LoadFile(openFileDialog1.FileName);
                 Modified = false;

                 absFileName = openFileDialog1.FileName;
                 fileName = Path.GetFileName(absFileName);
             }
         }

         //另存文件
         public void ShowSaveFileDlg()
         {
             SaveFileDialog saveFileDialog1 = new SaveFileDialog();
             saveFileDialog1.DefaultExt = ".rtf";
             saveFileDialog1.Filter = "RTF 文档(*.rtf)|*.rtf|所有文件(*.*)|*.*";
             saveFileDialog1.FileName = FileName;
             if (saveFileDialog1.ShowDialog() == DialogResult.OK)
             {
                 SaveFile(saveFileDialog1.FileName);
                 Modified = false;

                 absFileName = saveFileDialog1.FileName;
                 fileName = Path.GetFileName(absFileName);
             }
         }

         #endregion

         #region 把RTF文件保存为纯文本

         /// <summary>
         /// 把RTF文件保存为纯文本
         /// 只保存字符 转换后文本不包括RTF中的图片信息
         /// </summary>
         /// <param name="TextFileName">"C:\Users\Admin\Desktop\CurRoleBase.txt"</param>
         public void SaveToTextFile(string TextFileName)
         {
             this.SaveFile(TextFileName, RichTextBoxStreamType.TextTextOleObjs);
         }
         #endregion

         #region 设置为只读模式

         [DllImport("user32.dll")]
         static extern bool HideCaret(IntPtr hWnd);

         /// <summary>
         /// HideCaret
         /// </summary>
         /// <param name="m"></param>
         protected override void WndProc(ref Message m)
         {
             base.WndProc(ref m);
             if (ReadOnly)
                 HideCaret(Handle);
         }
         #endregion

         #region 设置 和 获得光标所在的行号和列号
         ///要在本类中初始化 richTextBox1 = this;
         private int EM_LINEINDEX = 0x00BB;
         private int EM_LINEFROMCHAR = 0x00C9;

         [DllImport("user32.dll", EntryPoint = "SendMessage")]
         public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

         /// <summary>
         /// 获得光标所在的行号和列号
         /// </summary>
         /// <param name="editControl"></param>
         /// <returns>p.X = 行号 p.Y =列号</returns>
         public Point GetCaretPosition()
         {
             int charIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEINDEX, -, );
             int lineIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEFROMCHAR, charIndex, );
             Point pt=new Point();
             pt.X = richTextBox1.SelectionStart - charIndex +;//Line
             pt.Y = lineIndex +;//Column
             return pt;
         }

         /// <summary>
         /// 转到行
         /// </summary>
         /// <param name="Line">行号</param>
         public void jumpLine(int Line)
         {
             richTextBox1.SelectionStart = SendMessage(richTextBox1.Handle, EM_LINEINDEX, Line - , );
             richTextBox1.SelectionLength = ;
             richTextBox1.ScrollToCaret();
         }

         /// <summary>
         /// 有问题 同时设置行号和列号就出现问题了
         /// </summary>
         /// <param name="Column"></param>
         public void jumpColumn(int Column)
         {
             int Line = Column;

             int charIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEINDEX, Line - , );
             int lineIndex = charIndex + (int)SendMessage(richTextBox1.Handle, EM_LINEFROMCHAR, charIndex, );

             richTextBox1.SelectionStart = lineIndex;
         }
         #endregion

         #region RichTextBox 字体样式
         //格式刷

         /// richTextBox1 = this;

         /// <summary>
         /// 粗体
         /// </summary>
         public void ToggleBold()
         {
             if (richTextBox1.SelectionFont == null)
                 richTextBox1.SelectionFont = richTextBox1.Font;

             FontStyle style = richTextBox1.SelectionFont.Style;

             if (richTextBox1.SelectionFont.Bold)

                 style &= ~FontStyle.Bold;//恢复正常
             else
                 style |= FontStyle.Bold;

             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
         }

         /// <summary>
         /// 斜体
         /// </summary>
         public void ToggleItalic()
         {
             if (richTextBox1.SelectionFont == null)
                 richTextBox1.SelectionFont = richTextBox1.Font;

             FontStyle style = richTextBox1.SelectionFont.Style;

             if (richTextBox1.SelectionFont.Italic)
                 style &= ~FontStyle.Italic;//恢复正常
             else
                 style |= FontStyle.Italic;

             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
         }

         /// <summary>
         /// 下划线
         /// </summary>
         public void ToggleUnderLine()
         {
             if (richTextBox1.SelectionFont == null)
                 richTextBox1.SelectionFont = richTextBox1.Font;

             FontStyle style = richTextBox1.SelectionFont.Style;

             if (richTextBox1.SelectionFont.Underline)
                 style &= ~FontStyle.Underline;//恢复正常
             else
                 style |= FontStyle.Underline;

             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
         }

         /// <summary>
         /// 删除线
         /// </summary>
         public void ToggleStrikeout()
         {
             if (richTextBox1.SelectionFont == null)
                 richTextBox1.SelectionFont = richTextBox1.Font;

             FontStyle style = richTextBox1.SelectionFont.Style;

             if (richTextBox1.SelectionFont.Strikeout)
                 style &= ~FontStyle.Strikeout;//恢复正常
             else
                 style |= FontStyle.Strikeout;
             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
         }

         //标题1 ，标题2....
         public void SetFontFormat(int index)
         {
              richTextBoxFontFormatClass FontFormat1 = new richTextBoxFontFormatClass();
              FontFormat1.richTextBox = this;
              FontFormat1.SetFontFormat(index);
         }

         public string GetFontFormat()
         {
             richTextBoxFontFormatClass FontFormat1 = new richTextBoxFontFormatClass();
             FontFormat1.richTextBox = this;
             return FontFormat1.GetFontFormat();
         }

         /// <summary>
         /// 设置上标
         /// </summary>
         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public bool SelectionSupperScript
         {
             get
             {
                 return (SelectionCharOffset == );
             }
             set
             {
                 if (SelectionCharOffset == )
                 {
                     SelectionCharOffset =  ;
                 }
                 else
                 {
                     SelectionCharOffset = ;
                 }
             }
         }

         /// <summary>
         /// 设置下标
         /// </summary>
         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public bool SelectionSubScript
         {
             get
             {
                 return (SelectionCharOffset == -);
             }
             set
             {
                 if (SelectionCharOffset == )
                 {
                     SelectionCharOffset = -;
                 }
                 else
                 {
                     SelectionCharOffset = ;
                 }

             }
         }

         /// <summary>
         ///RichTextBox  数字序列 1. 2. 3. 4. 5.  ...
         /// </summary>
         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public bool SelectionOrderList
         {
             get
             {
                 richTextBoxBulletClass r = new richTextBoxBulletClass();
                 r.richTextBox = this;
                 return r.SelectionOrderList;
             }
             set
             {
                 richTextBoxBulletClass r = new richTextBoxBulletClass();
                 r.richTextBox = this;
                 r.SelectionOrderList = value;
             }
         }

         //只须设置 不需要获得是否设置的返回值
         ////Tab->
         public void Indent()
         {
             SelectionIndent += ;
         }
         ////Tab <-
         public void OutIndent()
         {
             SelectionIndent -= ;
         }

         #endregion

         #region  RichTextBox Margin
         private struct Rect
         {
             public int Left;
             public int Top;
             public int Right;
             public int Bottom;
         }

         [DllImport("user32.dll")]
         private static extern int SendMessage(IntPtr hwnd, int wMsg, IntPtr wParam, ref Rect lParam);

         private const int EM_GETRECT = 0x00b2;
         private const int EM_SETRECT = 0x00b3;

         /// <summary>
         /// 当没设置的时候结果多出了L T R +2
         /// </summary>
         private Rect RichTextBoxMargin
         {
             get
             {
                 Rect rect = new Rect();
                 SendMessage(richTextBox1.Handle, EM_GETRECT, IntPtr.Zero, ref rect);
                 rect.Left += ;
                 rect.Top += ;
                 rect.Right =  + richTextBox1.DisplayRectangle.Width - rect.Right;
                 rect.Bottom = richTextBox1.DisplayRectangle.Height - rect.Bottom;
                 return rect;
             }
             set
             {
                 Rect rect;
                 rect.Left = richTextBox1.ClientRectangle.Left + value.Left;
                 rect.Top = richTextBox1.ClientRectangle.Top + value.Top;
                 rect.Right = richTextBox1.ClientRectangle.Right - value.Right;
                 rect.Bottom = richTextBox1.ClientRectangle.Bottom - value.Bottom;

                 SendMessage(richTextBox1.Handle, EM_SETRECT, IntPtr.Zero, ref rect);
             }

         }

         [Browsable(true)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public int LeftMargin
         {
             get
             {
                 return RichTextBoxMargin.Left;
             }
             set
             {
                 Rect rect1;
                 rect1 = RichTextBoxMargin;

                 Rect rect;
                 rect.Left = value;
                 rect.Top = ;//rect1.Top;
                 rect.Right = rect1.Right;
                 rect.Bottom = rect1.Bottom;

                 RichTextBoxMargin = rect;
             }
         }

         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public  int RightMargin
         {
             get
             {
                 return RichTextBoxMargin.Right;
             }
             set
             {
                 Rect rect1;
                 rect1 = RichTextBoxMargin;

                 Rect rect;
                 rect.Left = rect1.Left;
                 rect.Top = rect1.Top;
                 rect.Right = value;
                 rect.Bottom = rect1.Bottom;

                 RichTextBoxMargin = rect;
             }
         }

         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public int TopMargin
         {
             get
             {
                 return RichTextBoxMargin.Top;
             }
             set
             {
                 Rect rect1;
                 rect1 = RichTextBoxMargin;

                 Rect rect;
                 rect.Left = rect1.Left;
                 rect.Top = value;
                 rect.Right = rect1.Right;
                 rect.Bottom = rect1.Bottom;

                 RichTextBoxMargin = rect;
             }
         }
         [Browsable(false)]
         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
         public int BottomMargin
         {
             get
             {
                 return RichTextBoxMargin.Bottom;
             }
             set
             {
                 Rect rect1;
                 rect1 = RichTextBoxMargin;

                 Rect rect;
                 rect.Left = rect1.Left;
                 rect.Top = rect1.Top;
                 rect.Right = rect1.Right;
                 rect.Bottom = value;
                 RichTextBoxMargin = rect;
             }
         }

 #endregion

         #region RichTextBox 默认快捷键
         /*
             查找    CTRL+F
             替换    CTRL+R
             时间日期     F5

             粗体    CTRL+B
             斜体    CTRL+I
             下划线    CTRL+U
          */

         protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
         {
             if (!this.ReadOnly)
             {
                 switch (keyData)
                 {
                     //CTRL+B
                     case Keys.Control | Keys.B:
                         ToggleBold();
                         return true;

                     //CTRL+I
                     case Keys.Control | Keys.I:
                         ToggleItalic();
                         return true;

                     //CTRL+U
                     case Keys.Control | Keys.U:
                         ToggleUnderLine();
                         return true;

                     //shift +tab 左缩进
                     case Keys.Shift | Keys.Tab:
                         if (SelectedText != "")
                         {
                             SelectionIndent -= ;
                         }
                         return true;

                     //shift +tab 右缩进
                     case Keys.Tab:
                         if (SelectedText != "")
                         {
                             SelectionIndent += ;

                         }
                         return true;

                     //替换对话框
                     case Keys.Control | Keys.R:
                         ShowReplaceDlg();
                         return true;

                     //插入时间日期
                     case Keys.F5:
                         //2013-11-25 13:57:09
                         SelectedText = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");
                         return true;

                     //粘贴纯文本
                     case Keys.Control | Keys.Shift | Keys.V:
                         PasteAsText();
                         return true;

                     case Keys.Control | Keys.G:
                         ShowGoToDlg();
                 return true;

                 }
             }

             if (keyData == (Keys.Control | Keys.F))
             {
                 ShowFindDlg();
             }
             return false;
         }

         #endregion

         #region RichTextBox 常用属性

         public void PasteAsText()
         {
             richTextBox1.SelectedText = Clipboard.GetText(); //粘贴纯文本
         }

         public void PasteAsBmp()
         {
             if (CanPasteAsBmp())
             {
                 richTextBox1.Paste();
             }
         }

         public void  PasteAsHtml()
         {

         }

         public void PasteAsUnicode()
         {

         }

         /// <summary>
         /// 剪切板是否为空
         /// </summary>
         /// <returns></returns>
         public  bool CanPaste()
         {
             return (Clipboard.GetDataObject() != null);
         }

         /// <summary>
         /// 剪切板是否有字符串
         /// </summary>
         /// <returns></returns>
         public bool CanPasteAsText()
         {
             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Text);
         }
         /// <summary>
         /// 剪切板是否有位图
         /// </summary>
         /// <returns></returns>
         public bool CanPasteAsBmp()
         {
             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Bitmap);
         }
         /// <summary>
         /// 剪切板是否HTML
         /// </summary>
         /// <returns></returns>
         public bool CanPasteAsHtml()
         {
             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Html);
         }

         /// <summary>
         /// 是否可以全选
         /// </summary>
         /// <returns></returns>
         public bool CanSelectAll()
         {
             return (richTextBox1.SelectedText.Length != richTextBox1.Text.Length);
         }

         private void InitialRichTextBoxCtrl()
         {
             //ContextMenuStrip = contextMenuStrip1;
             LinkClicked += new System.Windows.Forms.LinkClickedEventHandler(richTextBox1_LinkClicked);
         }

         /// <summary>
         /// 自动打开超链接
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void richTextBox1_LinkClicked(object sender, LinkClickedEventArgs e)
         {
             DialogResult b = MessageBox.Show("你要打开此链接吗?\n" + e.LinkText, "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
             if (b == DialogResult.Yes)
             {
                 System.Diagnostics.Process.Start("iexplore.exe", e.LinkText);
             }
         }

         #endregion

         #region RichTextBox 通用对话框

         //private FindDialog FindDlg = new FindDialog();
         //private ReplaceDialog ReplaceDlg=new ReplaceDialog();

         /// <summary>
         /// 查找对话框
         /// </summary>
         public void ShowFindDlg()
         {
             FindDialog FindDlg = new FindDialog();
             FindDlg.richTextBox1 = this;
             FindDlg.textBox1.Text = this.SelectedText;
             FindDlg.StartPosition = FormStartPosition.CenterParent;
             FindDlg.ShowDialog();
         }

         /// <summary>
         /// 替换 对话框
         /// </summary>
         public void ShowReplaceDlg()
         {
             ReplaceDialog ReplaceDlg = new ReplaceDialog();
             ReplaceDlg.StartPosition = FormStartPosition.CenterParent;
             ReplaceDlg.richTextBox1 = this;
             ReplaceDlg.textBox1.Text = this.SelectedText;
             ReplaceDlg.ShowDialog();
         }

         /// <summary>
         /// 字体对话框
         /// </summary>
         public void ShowFontDlg()
         {
             FontDialog fontDialog1 = new FontDialog();
             fontDialog1.Font = richTextBox1.Font;
             if (fontDialog1.ShowDialog() == DialogResult.OK)
             {
                 richTextBox1.Font = fontDialog1.Font;

             }
         }
         /// <summary>
         /// 转到 对话框
         /// </summary>
         public void ShowGoToDlg()
         {
             Point pt = this.GetCaretPosition();

             frm_GOTO frm = new frm_GOTO();
             frm.label1.Text = "等号(1 - " + this.Lines.Length.ToString() + ")(&L)";
             frm.textBox1.Text = pt.X.ToString();
             if (frm.ShowDialog() == DialogResult.OK)
             {
                 int Line = Convert.ToInt32(frm.textBox1.Text);
                 if (Line >= )
                 {
                     if (Line > this.Lines.Length+)
                     {
                         MessageBox.Show("行数大于现有的行数");
                     }
                     else
                     {
                         this.jumpLine(Line);
                     }
                 }
             }
         }

         //RichTextBox 插入图片
         public void ShowInsertImageDlg()
         {
             OpenFileDialog OpenFileDialog1 = new OpenFileDialog();
             OpenFileDialog1.Title = "Select Image";
             OpenFileDialog1.Filter = "BMP File|*.BMP|JPEG File|*.JPG|GIF File|*.GIF|PNG File|*.PNG|ICO File|*.ICO|Image File|*.BMP;*.DIB;*.RLE;*.JPG;*.JPEG;*.JPE;*.JFIF;*.GIF;*.EMF;*.WMF;*.TIF;*.PNG;*.ICO|All File|*.*";
             OpenFileDialog1.FilterIndex = ;
             if (OpenFileDialog1.ShowDialog() == DialogResult.OK)
             {
                 string strImagePath = OpenFileDialog1.FileName;
                 Image img;
                 img = Image.FromFile(strImagePath);
                 Clipboard.SetDataObject(img);
                 DataFormats.Format df;
                 df = DataFormats.GetFormat(DataFormats.Bitmap);
                 if (this.CanPaste(df))
                 {
                     this.Paste(df);
                 }
             }
         }     

         //插入表格对话框
         public void ShowInsertTableDlg()
         {
             richTextBoxTableDlg dlg = new richTextBoxTableDlg();
             dlg.richTextBox = this;

             if (dlg.ShowDialog() == DialogResult.OK)
             {
                 richTextBoxTable r1 = new richTextBoxTable();
                 r1.richTextBox = this;
                 r1.cellWidth = (int)dlg.numericUpDownCellWidth.Value;
                 r1.InsertTable((int)dlg.numericUpDownColumn.Value, (int)dlg.numericUpDownRow.Value, dlg.radioButtonAutoSzie.Checked);
             }
         }

         public void ShowViewSourceDlg()
         {
             ViewRtfSoruceDlg rtfdlg = new ViewRtfSoruceDlg();

             string s = string.Format("文件很大 请等待... {0}KB", (richTextBox1.Rtf.Length /));

             //if (richTextBox1.Rtf.Length > 1024*1024)
             //    MessageBox.Show(s);

             rtfdlg.textBox1.Text = richTextBox1.Rtf;
             if (rtfdlg.ShowDialog()==DialogResult.OK)
             {
                 richTextBox1.Rtf = rtfdlg.textBox1.Text;
             }
             Application.DoEvents();
         }
         #endregion

         #region RichTextBox 是否显示行号
         #endregion

         #region 实现 页面设置  打印预览 打印

         //页面设置
         public void ShowPageSetupDlg()
         {
             richTextBoxPrintClass r = new richTextBoxPrintClass();
             r.richTextBox = this;
             r.ShowPageSetupDlg();
         }
         //打印预览功能
         public void ShowShowPagePriviewDlg()
         {
             richTextBoxPrintClass r = new richTextBoxPrintClass();
             r.richTextBox = this;
             r.ShowShowPagePriviewDlg();
         }

         //打印
         public void ShowPrintDlg()
         {
             richTextBoxPrintClass r = new richTextBoxPrintClass();
             r.richTextBox = this;
             r.ShowPrintDlg();
         }
 #endregion

         #region 支持表格正确粘贴

         // P/Invoke declarations
         [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
         private static extern IntPtr LoadLibrary(string path);

         private static IntPtr moduleHandle;

         protected override CreateParams CreateParams
         {
             get
             {
                 if (moduleHandle == IntPtr.Zero)
                 {
                     moduleHandle = LoadLibrary("msftedit.dll");
                     if ((long)moduleHandle < 0x20)
                     {
                         throw new Win32Exception(Marshal.GetLastWin32Error(), "Could not load Msftedit.dll");
                     }
                 }

                 CreateParams createParams = base.CreateParams;
                 createParams.ClassName = "RichEdit50W";
                 if (this.Multiline)
                 {
                     if (((this.ScrollBars & RichTextBoxScrollBars.Horizontal) != RichTextBoxScrollBars.None) && !base.WordWrap)
                     {
                         createParams.Style |= 0x100000;
                         if ((this.ScrollBars & ((RichTextBoxScrollBars)0x10)) != RichTextBoxScrollBars.None)
                         {
                             createParams.Style |= 0x2000;
                         }
                     }
                     if ((this.ScrollBars & RichTextBoxScrollBars.Vertical) != RichTextBoxScrollBars.None)
                     {
                         createParams.Style |= 0x200000;
                         if ((this.ScrollBars & ((RichTextBoxScrollBars)0x10)) != RichTextBoxScrollBars.None)
                         {
                             createParams.Style |= 0x2000;
                         }
                     }
                 }
                 if ((BorderStyle.FixedSingle == base.BorderStyle) && ((createParams.Style & 0x800000) != ))
                 {
                     createParams.Style &= -;
                     createParams.ExStyle |= 0x200;
                 }
                 return createParams;
             }
         }
         #endregion
     }

 }

RichTextBoxCtrl.CS

//

 using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Windows.Forms;
 using System.Runtime.InteropServices;

 //2013-11-27 02:00:13
 ////清除样式
 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 //r.richTextBox = richTextBox1;
 //r.RemoveSelectionParaFormat2();

 ////属性获得

 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 //r.richTextBox = richTextBox1;
 //btn.Checked = r.SelectionOrderList;

 ////设置样式
 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 //r.richTextBox = richTextBox1;
 //r.SelectionOrderList = !r.SelectionOrderList;

 namespace RichTextBoxCtrl
 {
     class richTextBoxBulletClass
     {
         public RichTextBox richTextBox;
         public richTextBoxBulletClass()
         {
             richTextBox = new RichTextBox();
         }

         #region PARAFORMAT2
         [StructLayout(LayoutKind.Sequential)]
         private class PARAFORMAT2
         {
             public int cbSize;
             public int dwMask;
             public short wNumbering;
             public short wReserved;
             public int dxStartIndent;
             public int dxRightIndent;
             public int dxOffset;
             public short wAlignment;
             public short cTabCount;
             [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x20)]
             public int[] rgxTabs;

             public int dySpaceBefore;     // Vertical spacing before para
             public int dySpaceAfter;     // Vertical spacing after para
             public int dyLineSpacing;     // Line spacing depending on Rule
             public short sStyle;         // Style handle
             public byte bLineSpacingRule;     // Rule for line spacing (see tom.doc)
             public byte bOutlineLevel;     // Outline Level
             public short wShadingWeight;     // Shading in hundredths of a per cent
             public short wShadingStyle;     // Byte 0: style, nib 2: cfpat, 3: cbpat
             public short wNumberingStart;     // Starting value for numbering
             public short wNumberingStyle;     // Alignment, Roman/Arabic, (), ), ., etc.
             public short wNumberingTab;     // Space bet 1st indent and 1st-line text
             public short wBorderSpace;     // Border-text spaces (nbl/bdr in pts)
             public short wBorderWidth;     // Pen widths (nbl/bdr in half twips)
             public short wBorders;         // Border styles (nibble/border)

             public PARAFORMAT2()
             {
                 this.cbSize = Marshal.SizeOf(typeof(PARAFORMAT2));
             }
         }
         #endregion

         #region PARAFORMAT MASK VALUES

         public const uint WM_USER = 0x0400;
         // RichEdit messages
         public const uint EM_GETPARAFORMAT = (WM_USER + );
         public const uint EM_SETPARAFORMAT = (WM_USER + );

         // PARAFORMAT mask values
         public const uint PFM_OFFSET = 0x00000004;
         public const uint PFM_NUMBERING = 0x00000020;

         // PARAFORMAT 2.0 masks and effects
         public const uint PFM_NUMBERINGSTYLE = 0x00002000;//设置项目编号的样式
         public const uint PFM_NUMBERINGTAB = 0x00004000;//设置项目编号按下Tab键的信息
         public const uint PFM_NUMBERINGSTART = 0x00008000;//设置项目编号的开始标识

         //wNumbering
         //Options used for bulleted or numbered paragraphs.
         //To use this member, set the PFM_NUMBERING flag in the dwMask member.
         //This member can be one of the following values.
         public enum Paraformat2Numbering
         {
             zero = ,
             Normal = ,             //No paragraph numbering or bullets.
             ArabicNumbers = ,      //Uses Arabic numbers (1, 2, 3, ...).
             LowerCaseLetter = ,    //Uses lowercase letters (a, b, c, ...).
             UpperCaseLetter = ,    //Uses uppercase letters (A, B, C, ...).
             LowerCaseRoman = ,     //Uses lowercase Roman numerals (i, ii, iii, ...).
             UpperCaseRoman =       //Uses uppercase Roman numerals (I, II, III, ...).
         }

         //wNumberingStyle
         //Numbering style used with numbered paragraphs.
         //Use this member in conjunction with the wNumbering member.
         //This member is included only for compatibility with TOM interfaces;
         //the rich edit control stores the value but rich edit versions earlier than 3.0 do not use it to display the text or bullets.
         //To use this member, set the PFM_NUMBERINGSTYLE flag in the dwMask member.
         //This member can be one of the following values.
         public enum Paraformat2NumberingStyle
         {
             RightParenthesis = 0x000,//Follows the number with a right parenthesis.
             DoubleParenthesis = 0x100,//Encloses the number in parentheses.
             Period = 0x200,//Follows the number with a period.
             Plain = 0x300,//Displays only the number.
             zero = 0x400//Continues a numbered list without applying the next number or bullet.
         }

         #endregion

         #region SetSelectionParaFormat2

         [DllImport("user32.dll")]
         private static extern IntPtr SendMessage(IntPtr hWnd, uint msg, uint wParam, [In, Out, MarshalAs(UnmanagedType.LPStruct)] PARAFORMAT2 lParam);

         public void SetSelectionParaFormat2(Paraformat2NumberingStyle style, Paraformat2Numbering Number)
         {
             PARAFORMAT2 p = new PARAFORMAT2();
             p.dwMask = (int)(PFM_NUMBERING | PFM_OFFSET | PFM_NUMBERINGSTART | PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB);

             p.wNumbering = (short)Number;
             //p.dxOffset = BulletIndent;
             p.wNumberingStyle = (short)style;
             p.wNumberingStart = ;
             p.wNumberingTab = ;

             SendMessage(richTextBox.Handle, EM_SETPARAFORMAT, , p);
         }
         #endregion

         //获得 wNumbering的返回值
         public Paraformat2Numbering GetSelectionParaformat2wNumbering()
         {
             PARAFORMAT2 p = new PARAFORMAT2();
             SendMessage(richTextBox.Handle, EM_GETPARAFORMAT, , p);
             return (Paraformat2Numbering)p.wNumbering;
         }

         //获得wNumberingStyleg的返回值
         public Paraformat2NumberingStyle GetSelectionParaformat2wNumberingStyle()
         {
             PARAFORMAT2 p = new PARAFORMAT2();
             SendMessage(richTextBox.Handle, EM_GETPARAFORMAT, , p);
             return (Paraformat2NumberingStyle)p.wNumberingStyle;
         }

         #region 更多样式... ...

         private void test()
         {
             //●●●●
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.Normal);
             //1 2 3 4 5 ...
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.ArabicNumbers);
             //1. 2. 3. 4. 5.  ...
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.ArabicNumbers);
             //1) 2) 3) 4) ...
             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.ArabicNumbers);
             //(1) (2) (3) (4) ...
             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.ArabicNumbers);
             //////////////////////////////////////////////////////////////////////////

             //a b c d e
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.LowerCaseLetter);
             //a. b. c. d. e.
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.LowerCaseLetter);
             //a) b) c) d) e)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.LowerCaseLetter);
             //(a) (b) (c) (d) (e)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.LowerCaseLetter);
             //////////////////////////////////////////////////////////////////////////

             //A B C D E
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.UpperCaseLetter);
             //A. B. C. D. E.
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.UpperCaseLetter);
             //A) B) C) D) E)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.UpperCaseLetter);
             //(A) (B) (C) (D) (E)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.UpperCaseLetter);
             //////////////////////////////////////////////////////////////////////////

             //I II III IIII IV
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.LowerCaseRoman);
             //I. II. III. IIII. IV.
             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.LowerCaseRoman);
             //I) II) III) IIII) IV)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.LowerCaseRoman);
             //(I) (II) (III) (IIII) (IV)
             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.LowerCaseRoman);
             //////////////////////////////////////////////////////////////////////////

         }
         #endregion

         //清除选中的样式
         public void RemoveSelectionParaFormat2()
         {
             SetSelectionParaFormat2(, );
         }

         #region  数字序列 1. 2. 3. 4. 5.  ...
         private bool bOrder = false;
         public bool SelectionOrderList
         {
             get
             {
                 return (
                        (GetSelectionParaformat2wNumbering() == Paraformat2Numbering.ArabicNumbers) &&
                        (GetSelectionParaformat2wNumberingStyle() == Paraformat2NumberingStyle.Period)
                        );

             }
             set
             {
                 bOrder = value;

                 if (value == true)
                     SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.ArabicNumbers);
                 else
                     RemoveSelectionParaFormat2();
             }
         }
         #endregion

     }
 }

richTextBoxBulletClass.CS

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Windows.Forms;
 using System.Drawing;

 //使用
 ////set font Size font Style bold Italic
 ////
 ////普通  not bold italic
 ////标题1  字体大小　24 Bold
 ////标题2  字体大小　18 Bold
 ////标题3  字体大小　14 Bold
 ////标题4  字体大小　12 Bold
 ////标题5  字体大小　10 Bold
 ////标题6  字体大小　8  Bold
 ////地址   字体大小　12 Italic

 //private RichTextBoxCtrl.richTextBoxFontFormatClass r = new RichTextBoxCtrl.richTextBoxFontFormatClass();
 //private void Form1_Load(object sender, EventArgs e)
 //{
 //    r.richTextBox = richTextBox1;
 //    comboBox1.Items.Clear();
 //    comboBox1.Items.AddRange(new object[] {
 //             "普通",
 //             "标题1",
 //             "标题2",
 //             "标题3",
 //             "标题4",
 //             "标题5",
 //             "标题6",
 //             "地址 "});
 //}

 //private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
 //{
 //    r.SetFontFormat(comboBox1.SelectedIndex);

 //    //SetFontFormat(comboBox1.SelectedIndex);
 //    Text = r.GetFontFormat().ToString();
 //}

 //private void richTextBox1_SelectionChanged(object sender, EventArgs e)
 //{
 //    Text = r.GetFontFormat();
 //    comboBox1.Text = r.GetFontFormat();
 //}

 namespace RichTextBoxCtrl
 {
     class richTextBoxFontFormatClass
     {
         public richTextBoxFontFormatClass()
         {

         }
         public RichTextBox richTextBox;

         public void SetFontFormat(int formatIndex)
         {
             float fontSize = richTextBox.Font.Size;
             string fontName = richTextBox.Font.Name;
             switch (formatIndex)
             {
                 case ://普通
                     richTextBox.SelectionFont = new Font(fontName, fontSize, FontStyle.Regular);
                     break;
                 case ://标题1
                     richTextBox.SelectionFont = new Font(fontName, 24f, FontStyle.Bold);
                     break;
                 case : //标题2
                     richTextBox.SelectionFont = new Font(fontName, 18f, FontStyle.Bold);
                     break;
                 case : //标题3
                     richTextBox.SelectionFont = new Font(fontName, 14f, FontStyle.Bold);
                     break;
                 case ://标题4
                     richTextBox.SelectionFont = new Font(fontName, 12f, FontStyle.Bold);
                     break;
                 case : //标题5
                     richTextBox.SelectionFont = new Font(fontName, 10f, FontStyle.Bold);
                     break;
                 case : //标题6
                     richTextBox.SelectionFont = new Font(fontName, 8f, FontStyle.Bold);
                     break;
                 case : //地址
                     richTextBox.SelectionFont = new Font(fontName, 12f, FontStyle.Italic);
                     break;
             }
         }
         public string GetFontFormat()
         {
             string Result = "普通";
             if (richTextBox.SelectionFont !=null )
             {
                 float fontSize = richTextBox.SelectionFont.Size;
                 FontStyle fontStyle = richTextBox.SelectionFont.Style;

                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题1";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题2";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题3";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题4";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题5";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Bold)
                     Result = "标题6";
                 else
                 if (fontSize ==  && fontStyle == FontStyle.Italic)
                     Result = "地址";
                 else
                     Result = "普通";
             }
             else
                 Result = "普通";
             return Result;
         }
     }
 }

richTextBoxFontFormatClass.CS

 using System;
 using System.Windows.Forms;
 using System.Drawing;
 using System.Runtime.InteropServices;
 using System.Drawing.Printing;

 #region 调用示例
 /*使用
 //页面设置
 private void btnPageSetup_Click(object sender, EventArgs e)
 {
     richTextBoxPrintClass r = new richTextBoxPrintClass();
     r.richTextBox = richTextBox1;
     r.ShowPageSetupDlg();
 }
 //打印预览功能
 private void btnPrintPreview_Click(object sender, EventArgs e)
 {
     richTextBoxPrintClass r = new richTextBoxPrintClass();
     r.richTextBox = richTextBox1;
     r.ShowShowPagePriviewDlg();
 }
 //打印
 private void btnPrint_Click(object sender, EventArgs e)
 {
     richTextBoxPrintClass r = new richTextBoxPrintClass();
     r.richTextBox = richTextBox1;
     r.ShowPrintDlg();
 }
 */
 #endregion
 //http://support.microsoft.com/kb/812425/zh-cn
 namespace RichTextBoxCtrl
 {
     class richTextBoxPrintClass
     {
         public richTextBoxPrintClass()
         {
             InitializeComponent();
         }
         #region 打印功用

         //and the unit used by Win32 API calls (twips 1/1440 inch)
         private const double anInch = 14.4;

         [StructLayout(LayoutKind.Sequential)]
         private struct RECT
         {
             public int Left;
             public int Top;
             public int Right;
             public int Bottom;
         }

         [StructLayout(LayoutKind.Sequential)]
         private struct CHARRANGE
         {
             public int cpMin;         //First character of range (0 for start of doc)
             public int cpMax;           //Last character of range (-1 for end of doc)
         }

         [StructLayout(LayoutKind.Sequential)]
         private struct FORMATRANGE
         {
             public IntPtr hdc;             //Actual DC to draw on
             public IntPtr hdcTarget;       //Target DC for determining text formatting
             public RECT rc;                //Region of the DC to draw to (in twips)
             public RECT rcPage;            //Region of the whole DC (page size) (in twips)
             public CHARRANGE chrg;         //Range of text to draw (see earlier declaration)
         }

         private const int WM_USER = 0x0400;
         private const int EM_FORMATRANGE = WM_USER + ;

         [DllImport("USER32.dll")]
         private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wp, IntPtr lp);

         // Render the contents of the RichTextBox for printing
         //    Return the last character printed + 1 (printing start from this point for next page)
         public static int Print(RichTextBox richTextBox, int charFrom, int charTo, PrintPageEventArgs e)
         {
             //Calculate the area to render and print
             RECT rectToPrint;
             rectToPrint.Top = (int)(e.MarginBounds.Top * anInch);
             rectToPrint.Bottom = (int)(e.MarginBounds.Bottom * anInch);
             rectToPrint.Left = (int)(e.MarginBounds.Left * anInch);
             rectToPrint.Right = (int)(e.MarginBounds.Right * anInch);

             //Calculate the size of the page
             RECT rectPage;
             rectPage.Top = (int)(e.PageBounds.Top * anInch);
             rectPage.Bottom = (int)(e.PageBounds.Bottom * anInch);
             rectPage.Left = (int)(e.PageBounds.Left * anInch);
             rectPage.Right = (int)(e.PageBounds.Right * anInch);

             IntPtr hdc = e.Graphics.GetHdc();

             FORMATRANGE fmtRange;
             fmtRange.chrg.cpMax = charTo;                //Indicate character from to character to
             fmtRange.chrg.cpMin = charFrom;
             fmtRange.hdc = hdc;                    //Use the same DC for measuring and rendering
             fmtRange.hdcTarget = hdc;              //Point at printer hDC
             fmtRange.rc = rectToPrint;             //Indicate the area on page to print
             fmtRange.rcPage = rectPage;            //Indicate size of page

             IntPtr res = IntPtr.Zero;

             IntPtr wparam = IntPtr.Zero;
             wparam = new IntPtr();

             //Get the pointer to the FORMATRANGE structure in memory
             IntPtr lparam = IntPtr.Zero;
             lparam = Marshal.AllocCoTaskMem(Marshal.SizeOf(fmtRange));
             Marshal.StructureToPtr(fmtRange, lparam, false);

             //Send the rendered data for printing
             res = SendMessage(richTextBox.Handle, EM_FORMATRANGE, wparam, lparam);

             //Free the block of memory allocated
             Marshal.FreeCoTaskMem(lparam);

             //Release the device context handle obtained by a previous call
             e.Graphics.ReleaseHdc(hdc);

             //Return last + 1 character printer
             return res.ToInt32();
         }

         #endregion

         #region 初始化
         public RichTextBox richTextBox;
         private PageSetupDialog pageSetupDialog1;
         private PrintDialog printDialog1;
         private PrintDocument printDocument1;
         private PrintPreviewDialog printPreviewDialog1;

         private void InitializeComponent()
         {
             richTextBox = new RichTextBox();
             pageSetupDialog1 = new PageSetupDialog();
             printDialog1 = new PrintDialog();
             printDocument1 = new PrintDocument();
             printPreviewDialog1 = new PrintPreviewDialog();

             //
             // pageSetupDialog1
             //
             pageSetupDialog1.Document = printDocument1;
             //
             // printDialog1
             //
             printDialog1.Document = printDocument1;
             printDialog1.UseEXDialog = true;
             //
             // printDocument1
             //
             printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(printDocument1_PrintPage);
             printDocument1.BeginPrint += new System.Drawing.Printing.PrintEventHandler(printDocument1_BeginPrint);
             //
             // printPreviewDialog1
             // 

             printPreviewDialog1.AutoScrollMargin = new System.Drawing.Size(, );
             printPreviewDialog1.AutoScrollMinSize = new System.Drawing.Size(, );
             printPreviewDialog1.ClientSize = new System.Drawing.Size(, );
             printPreviewDialog1.Document = printDocument1;
             printPreviewDialog1.Enabled = true;
             // printPreviewDialog1.Icon = ((System.Drawing.Icon)(resources.GetObject("printPreviewDialog1.Icon")));
             printPreviewDialog1.Name = "printPreviewDialog1";
             printPreviewDialog1.Visible = false;
         }

         private int checkPrint;
         private void printDocument1_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
         {
             checkPrint = ;
         }

         private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
         {
             // Print the content of RichTextBox. Store the last character printed.
             //checkPrint = richTextBoxPrintCtrl1.Print(checkPrint, richTextBoxPrintCtrl1.TextLength, e);
             checkPrint = richTextBoxPrintClass.Print(richTextBox, checkPrint, richTextBox.TextLength, e);

             // Check for more pages
             if (checkPrint < richTextBox.TextLength)
                 e.HasMorePages = true;
             else
                 e.HasMorePages = false;
         }

         #endregion

         //页面设置功能
         public void ShowPageSetupDlg()
         {
             pageSetupDialog1.ShowDialog();
         }

         //打印预览功能
         public void ShowShowPagePriviewDlg()
         {
             printPreviewDialog1.ShowDialog();
         }

         //打印
         public void ShowPrintDlg()
         {
             if (printDialog1.ShowDialog() == DialogResult.OK)
                 printDocument1.Print();
         }
     }
 }

richTextBoxPrintClass.CS

 using System;
 using System.Runtime.InteropServices;
 using System.Windows.Forms;
 using System.Text;

 //private void button2_Click(object sender, EventArgs e)
 //{
 //    richTextBoxTableDlg dlg = new richTextBoxTableDlg();
 //    dlg.richTextBox = richTextBox51;

 //    if (dlg.ShowDialog() ==DialogResult.OK)
 //    {
 //        richTextBoxTable r1 = new richTextBoxTable();
 //        r1.richTextBox = richTextBox51;
 //        r1.cellWidth = (int)dlg.numericUpDownCellWidth.Value  ;
 //        r1.InsertTable((int)dlg.numericUpDownColumn.Value, (int)dlg.numericUpDownRow.Value, dlg.radioButtonAutoSzie.Checked);
 //    }
 //}
 /*
  * 光标在表格上可以改变光标
  */

 namespace richTextBoxTableClass
 {
     public class richTextBoxTable
     {

         public richTextBoxTable()
         {

         }

        public RichTextBox richTextBox;
        public int cellWidth;// = 1000;//default =1000

         /// <summary>
         /// 插入表格
         /// </summary>
         /// <param name="col">行</param>
         /// <param name="row">列</param>
         /// <param name="AutoSize">=TRUE:自动设置每个单元格的大小</param>
         public void InsertTable(int col, int row,bool AutoSize)
         {
             StringBuilder rtf = new StringBuilder();
             rtf.Append(@"{\rtf1 ");

             //int cellWidth = 1000;//col.1 width =1000
             if (AutoSize)
                 //滚动条出现时 (richTextBox.ClientSize.Width - 滚动条的宽 /列的个数)*15
                 cellWidth = ((richTextBox.ClientSize.Width-) / row) * ;
             for (int i = ; i < col; i++)
             {
                 rtf.Append(@"\trowd");
                 for (int j = ; j <= row; j++)
                     rtf.Append(@"\cellx" + (j * cellWidth).ToString());
                 rtf.Append(@"\intbl \cell \row"); //create row
             }
             rtf.Append(@"\pard");
             rtf.Append(@"}");
             richTextBox.SelectedRtf = rtf.ToString();
             //return rtf.ToString();
         }
     }
 }

richTextBoxTableClass