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

 

  1 using System;
  2 //using System.Collections.Generic;
  3 //using System.Linq;
  4 using System.Text;
  5 using System.Drawing;
  6 //using System.Windows.Forms;
  7 using System.Runtime.InteropServices;
  8 using System.Drawing.Printing;
  9 using System.ComponentModel;
 10 using System.IO;
 11 using RichTextBoxCtrl;
 12 using richTextBoxTableClass;
 13  
 14 #region 添加引用 说明
 15 //右键选中 引用 添加引用
 16 //在“添加引用”对话框中，
 17 //双击“System.Drawing.dll”和
 18 //“System.Windows.Forms.dll”，然后单击“确定”。
 19 #endregion
 20 
 21 
 22 namespace System.Windows.Forms
 23 {
 24     public class RichTextBoxCtrl : RichTextBox
 25     {
 26 
 27         #region RichTextBox初始化属性
 28         /// <summary>
 29         /// richTextBox1 = this;
 30         /// </summary>
 31         private System.Windows.Forms.RichTextBox richTextBox1;
 32 
 33         public RichTextBoxCtrl()
 34         {
 35             richTextBox1 = this;
 36             AllowDrop = true;
 37             EnableAutoDragDrop = true;
 38             AcceptsTab = true;
 39             HideSelection = false;
 40             ScrollBars = RichTextBoxScrollBars.Vertical;
 41             InitialRichTextBoxCtrl();
 42             
 43         }
 44         #endregion
 45 
 46         #region RichTextBox 新建 打开 和 保存 文件对话框
 47 
 48         private string fileName = "未命名.rtf";
 49         private string absFileName = "";
 50 
 51         //文件名 返回 如 abc.rtf  
 52         public string FileName
 53         {
 54             get{
 55                 return fileName;
 56             }
 57         }
 58 
 59         //格式 C:\windows\abc.rtf
 60         public string AbsFileName
 61         {
 62             get {
 63                 return absFileName;
 64             }
 65         }
 66         
 67 
 68         /// <summary>
 69         /// 判断文件是否保存了
 70         /// </summary>
 71         private void CheckFileSave()
 72         {
 73             if (this.Modified)
 74             {
 75                 string msg = "";
 76                 if (File.Exists(absFileName))
 77                     msg = "文档已修改是否保存:" + fileName;
 78                 else
 79                     msg = "文档已修改是否保存";
 80 
 81                 DialogResult Result = MessageBox.Show(msg, "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
 82                 if (Result == DialogResult.Yes)
 83                 {
 84                     if (File.Exists(absFileName))
 85                         richTextBox1.SaveFile(absFileName);
 86                     else
 87                         this.ShowSaveFileDlg();
 88                 }
 89             }
 90         }
 91 
 92         /// <summary>
 93         /// 新空的文档
 94         /// </summary>
 95         public void NewDocument()
 96         {
 97             CheckFileSave();
 98 
 99             richTextBox1.Text = "";
100             richTextBox1.Modified = false;
101 
102             absFileName = "";
103             fileName = "";
104         }
105 
106         /// <summary>
107         /// 打开文件
108         /// </summary>
109         public void ShowOpenFileDlg()
110         {
111             CheckFileSave();
112 
113             OpenFileDialog openFileDialog1 = new OpenFileDialog();
114             openFileDialog1.DefaultExt = ".rtf";
115             openFileDialog1.Filter = "RTF 文档(*.rtf)|*.rtf|所有文件(*.*)|*.*";
116             if (openFileDialog1.ShowDialog() == DialogResult.OK)
117             {
118                 LoadFile(openFileDialog1.FileName);
119                 Modified = false;
120 
121                 absFileName = openFileDialog1.FileName;
122                 fileName = Path.GetFileName(absFileName);
123             }
124         }
125 
126         //另存文件
127         public void ShowSaveFileDlg()
128         {
129             SaveFileDialog saveFileDialog1 = new SaveFileDialog();
130             saveFileDialog1.DefaultExt = ".rtf";
131             saveFileDialog1.Filter = "RTF 文档(*.rtf)|*.rtf|所有文件(*.*)|*.*";
132             saveFileDialog1.FileName = FileName;
133             if (saveFileDialog1.ShowDialog() == DialogResult.OK)
134             {
135                 SaveFile(saveFileDialog1.FileName);
136                 Modified = false;
137              
138                 absFileName = saveFileDialog1.FileName;
139                 fileName = Path.GetFileName(absFileName);
140             }
141         }
142      
143         #endregion
144 
145         #region 把RTF文件保存为纯文本
146        
147         /// <summary>
148         /// 把RTF文件保存为纯文本
149         /// 只保存字符 转换后文本不包括RTF中的图片信息
150         /// </summary>
151         /// <param name="TextFileName">"C:\Users\Admin\Desktop\CurRoleBase.txt"</param>
152         public void SaveToTextFile(string TextFileName)
153         {
154             this.SaveFile(TextFileName, RichTextBoxStreamType.TextTextOleObjs);
155         }
156         #endregion
157 
158         #region 设置为只读模式
159 
160         [DllImport("user32.dll")]
161         static extern bool HideCaret(IntPtr hWnd);
162        
163        
164         /// <summary>
165         /// HideCaret 
166         /// </summary>
167         /// <param name="m"></param>
168         protected override void WndProc(ref Message m)
169         {
170             base.WndProc(ref m);
171             if (ReadOnly)
172                 HideCaret(Handle);
173         }
174         #endregion
175 
176         #region 设置 和 获得光标所在的行号和列号
177         ///要在本类中初始化 richTextBox1 = this;
178         private int EM_LINEINDEX = 0x00BB;
179         private int EM_LINEFROMCHAR = 0x00C9;
180 
181         [DllImport("user32.dll", EntryPoint = "SendMessage")]
182         public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
183 
184         
185         /// <summary>
186         /// 获得光标所在的行号和列号
187         /// </summary>
188         /// <param name="editControl"></param>
189         /// <returns>p.X = 行号 p.Y =列号</returns>
190         public Point GetCaretPosition()
191         {
192             int charIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEINDEX, -1, 0);
193             int lineIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEFROMCHAR, charIndex, 0);
194             Point pt=new Point();
195             pt.X = richTextBox1.SelectionStart - charIndex +1;//Line
196             pt.Y = lineIndex +1;//Column
197             return pt;
198         }
199 
200 
201         /// <summary>
202         /// 转到行
203         /// </summary>
204         /// <param name="Line">行号</param>
205         public void jumpLine(int Line)
206         {
207             richTextBox1.SelectionStart = SendMessage(richTextBox1.Handle, EM_LINEINDEX, Line - 1, 0);
208             richTextBox1.SelectionLength = 0;
209             richTextBox1.ScrollToCaret();
210         }
211 
212 
213         /// <summary>
214         /// 有问题 同时设置行号和列号就出现问题了
215         /// </summary>
216         /// <param name="Column"></param>
217         public void jumpColumn(int Column)
218         {
219             int Line = Column;
220 
221             int charIndex = (int)SendMessage(richTextBox1.Handle, EM_LINEINDEX, Line - 1, 0);
222             int lineIndex = charIndex + (int)SendMessage(richTextBox1.Handle, EM_LINEFROMCHAR, charIndex, 0);
223 
224             richTextBox1.SelectionStart = lineIndex;
225         }
226         #endregion
227 
228         #region RichTextBox 字体样式
229         //格式刷
230 
231 
232         /// richTextBox1 = this;
233         
234         /// <summary>
235         /// 粗体
236         /// </summary>
237         public void ToggleBold()
238         {
239             if (richTextBox1.SelectionFont == null)
240                 richTextBox1.SelectionFont = richTextBox1.Font;
241 
242             FontStyle style = richTextBox1.SelectionFont.Style;
243 
244             if (richTextBox1.SelectionFont.Bold)
245 
246                 style &= ~FontStyle.Bold;//恢复正常
247             else
248                 style |= FontStyle.Bold;
249 
250             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
251         }
252 
253         /// <summary>
254         /// 斜体
255         /// </summary>
256         public void ToggleItalic()
257         {
258             if (richTextBox1.SelectionFont == null)
259                 richTextBox1.SelectionFont = richTextBox1.Font;
260 
261             FontStyle style = richTextBox1.SelectionFont.Style;
262 
263             if (richTextBox1.SelectionFont.Italic)
264                 style &= ~FontStyle.Italic;//恢复正常
265             else
266                 style |= FontStyle.Italic;
267 
268             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
269         }
270 
271         /// <summary>
272         /// 下划线
273         /// </summary>
274         public void ToggleUnderLine()
275         {
276             if (richTextBox1.SelectionFont == null)
277                 richTextBox1.SelectionFont = richTextBox1.Font;
278 
279             FontStyle style = richTextBox1.SelectionFont.Style;
280 
281             if (richTextBox1.SelectionFont.Underline)
282                 style &= ~FontStyle.Underline;//恢复正常
283             else
284                 style |= FontStyle.Underline;
285 
286             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
287         }
288 
289         /// <summary>
290         /// 删除线
291         /// </summary>
292         public void ToggleStrikeout()
293         {
294             if (richTextBox1.SelectionFont == null)
295                 richTextBox1.SelectionFont = richTextBox1.Font;
296 
297             FontStyle style = richTextBox1.SelectionFont.Style;
298 
299             if (richTextBox1.SelectionFont.Strikeout)
300                 style &= ~FontStyle.Strikeout;//恢复正常
301             else
302                 style |= FontStyle.Strikeout;
303             richTextBox1.SelectionFont = new Font(richTextBox1.SelectionFont, style);
304         }
305        
306 
307         //标题1 ，标题2....
308         public void SetFontFormat(int index)
309         {
310              richTextBoxFontFormatClass FontFormat1 = new richTextBoxFontFormatClass();
311              FontFormat1.richTextBox = this;
312              FontFormat1.SetFontFormat(index);
313         }
314 
315         public string GetFontFormat()
316         {
317             richTextBoxFontFormatClass FontFormat1 = new richTextBoxFontFormatClass();
318             FontFormat1.richTextBox = this;
319             return FontFormat1.GetFontFormat();
320         }
321 
322         /// <summary>
323         /// 设置上标
324         /// </summary>
325         [Browsable(false)]
326         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
327         public bool SelectionSupperScript
328         {
329             get
330             {
331                 return (SelectionCharOffset == 4);
332             }
333             set
334             {
335                 if (SelectionCharOffset == 0)
336                 {
337                     SelectionCharOffset =  4;
338                 }
339                 else
340                 {
341                     SelectionCharOffset = 0;
342                 }
343             }
344         }
345 
346         /// <summary>
347         /// 设置下标
348         /// </summary>
349         [Browsable(false)]
350         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
351         public bool SelectionSubScript
352         {
353             get
354             {
355                 return (SelectionCharOffset == -4);
356             }
357             set
358             {
359                 if (SelectionCharOffset == 0)
360                 {
361                     SelectionCharOffset = -4;
362                 }
363                 else
364                 {
365                     SelectionCharOffset = 0;
366                 }
367 
368             }
369         }
370  
371 
372         /// <summary>
373         ///RichTextBox  数字序列 1. 2. 3. 4. 5.  ... 
374         /// </summary>
375         [Browsable(false)]
376         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
377         public bool SelectionOrderList
378         {
379             get
380             {
381                 richTextBoxBulletClass r = new richTextBoxBulletClass();
382                 r.richTextBox = this;
383                 return r.SelectionOrderList;
384             }
385             set
386             {
387                 richTextBoxBulletClass r = new richTextBoxBulletClass();
388                 r.richTextBox = this;
389                 r.SelectionOrderList = value;
390             }
391         }
392      
393     
394         //只须设置 不需要获得是否设置的返回值
395         ////Tab->
396         public void Indent()
397         {
398             SelectionIndent += 8;
399         }
400         ////Tab <-
401         public void OutIndent()
402         {
403             SelectionIndent -= 8;
404         }
405 
406         #endregion
407 
408         #region  RichTextBox Margin
409         private struct Rect
410         {
411             public int Left;
412             public int Top;
413             public int Right;
414             public int Bottom;
415         }
416 
417         [DllImport("user32.dll")]
418         private static extern int SendMessage(IntPtr hwnd, int wMsg, IntPtr wParam, ref Rect lParam);
419 
420         private const int EM_GETRECT = 0x00b2;
421         private const int EM_SETRECT = 0x00b3;
422 
423         /// <summary>
424         /// 当没设置的时候结果多出了L T R +2
425         /// </summary>
426         private Rect RichTextBoxMargin
427         {
428             get
429             {
430                 Rect rect = new Rect();
431                 SendMessage(richTextBox1.Handle, EM_GETRECT, IntPtr.Zero, ref rect);
432                 rect.Left += 1;
433                 rect.Top += 1;
434                 rect.Right = 1 + richTextBox1.DisplayRectangle.Width - rect.Right;
435                 rect.Bottom = richTextBox1.DisplayRectangle.Height - rect.Bottom;
436                 return rect;
437             }
438             set
439             {
440                 Rect rect;
441                 rect.Left = richTextBox1.ClientRectangle.Left + value.Left;
442                 rect.Top = richTextBox1.ClientRectangle.Top + value.Top;
443                 rect.Right = richTextBox1.ClientRectangle.Right - value.Right;
444                 rect.Bottom = richTextBox1.ClientRectangle.Bottom - value.Bottom;
445 
446                 SendMessage(richTextBox1.Handle, EM_SETRECT, IntPtr.Zero, ref rect);
447             }
448 
449         }
450 
451         [Browsable(true)]
452         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
453         public int LeftMargin
454         {
455             get
456             {
457                 return RichTextBoxMargin.Left;
458             }
459             set
460             {
461                 Rect rect1;
462                 rect1 = RichTextBoxMargin;
463 
464                 Rect rect;
465                 rect.Left = value;
466                 rect.Top = 0;//rect1.Top;
467                 rect.Right = rect1.Right;
468                 rect.Bottom = rect1.Bottom;
469 
470                 RichTextBoxMargin = rect;
471             }
472         }
473 
474         [Browsable(false)]
475         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
476         public  int RightMargin
477         {
478             get
479             {
480                 return RichTextBoxMargin.Right;
481             }
482             set
483             {
484                 Rect rect1;
485                 rect1 = RichTextBoxMargin;
486 
487                 Rect rect;
488                 rect.Left = rect1.Left;
489                 rect.Top = rect1.Top;
490                 rect.Right = value;
491                 rect.Bottom = rect1.Bottom;
492 
493                 RichTextBoxMargin = rect;
494             }
495         }
496 
497         [Browsable(false)]
498         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
499         public int TopMargin
500         {
501             get
502             {
503                 return RichTextBoxMargin.Top;
504             }
505             set
506             {
507                 Rect rect1;
508                 rect1 = RichTextBoxMargin;
509 
510                 Rect rect;
511                 rect.Left = rect1.Left;
512                 rect.Top = value;
513                 rect.Right = rect1.Right;
514                 rect.Bottom = rect1.Bottom;
515 
516                 RichTextBoxMargin = rect;
517             }
518         }
519         [Browsable(false)]
520         [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
521         public int BottomMargin
522         {
523             get
524             {
525                 return RichTextBoxMargin.Bottom;
526             }
527             set
528             {
529                 Rect rect1;
530                 rect1 = RichTextBoxMargin;
531 
532                 Rect rect;
533                 rect.Left = rect1.Left;
534                 rect.Top = rect1.Top;
535                 rect.Right = rect1.Right;
536                 rect.Bottom = value;
537                 RichTextBoxMargin = rect;
538             }
539         }
540 
541 #endregion
542         
543         #region RichTextBox 默认快捷键
544         /*
545             查找    CTRL+F
546             替换    CTRL+R
547             时间日期     F5
548 
549             粗体    CTRL+B
550             斜体    CTRL+I
551             下划线    CTRL+U
552          */
553 
554         protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
555         {
556             if (!this.ReadOnly)
557             {
558                 switch (keyData)
559                 {
560                     //CTRL+B
561                     case Keys.Control | Keys.B:
562                         ToggleBold();
563                         return true;
564 
565                     //CTRL+I
566                     case Keys.Control | Keys.I:
567                         ToggleItalic();
568                         return true;
569 
570                     //CTRL+U
571                     case Keys.Control | Keys.U:
572                         ToggleUnderLine();
573                         return true;
574 
575                     //shift +tab 左缩进
576                     case Keys.Shift | Keys.Tab:
577                         if (SelectedText != "")
578                         {
579                             SelectionIndent -= 8;
580                         }
581                         return true;
582 
583                     //shift +tab 右缩进
584                     case Keys.Tab:
585                         if (SelectedText != "")
586                         {
587                             SelectionIndent += 8;
588                           
589                         }
590                         return true;
591 
592                     //替换对话框
593                     case Keys.Control | Keys.R:
594                         ShowReplaceDlg();
595                         return true;
596 
597                     //插入时间日期
598                     case Keys.F5:
599                         //2013-11-25 13:57:09
600                         SelectedText = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");
601                         return true;
602 
603                     //粘贴纯文本
604                     case Keys.Control | Keys.Shift | Keys.V:
605                         PasteAsText();
606                         return true;
607 
608                     case Keys.Control | Keys.G:
609                         ShowGoToDlg();
610                 return true;
611 
612                 }
613             }
614  
615             if (keyData == (Keys.Control | Keys.F))
616             {
617                 ShowFindDlg();
618             }
619             return false;
620         }
621 
622 
623         #endregion
624 
625         #region RichTextBox 常用属性
626 
627         public void PasteAsText()
628         {
629             richTextBox1.SelectedText = Clipboard.GetText(); //粘贴纯文本
630         }
631 
632         public void PasteAsBmp()
633         {
634             if (CanPasteAsBmp())
635             {
636                 richTextBox1.Paste();
637             }
638         }
639 
640         public void  PasteAsHtml()
641         {
642            
643         }
644 
645         public void PasteAsUnicode()
646         {
647 
648         }
649 
650         /// <summary>
651         /// 剪切板是否为空
652         /// </summary>
653         /// <returns></returns>
654         public  bool CanPaste()
655         {
656             return (Clipboard.GetDataObject() != null);
657         }
658 
659         /// <summary>
660         /// 剪切板是否有字符串
661         /// </summary>
662         /// <returns></returns>
663         public bool CanPasteAsText()
664         {
665             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Text); 
666         }
667         /// <summary>
668         /// 剪切板是否有位图
669         /// </summary>
670         /// <returns></returns>
671         public bool CanPasteAsBmp()
672         {
673             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Bitmap); 
674         }
675         /// <summary>
676         /// 剪切板是否HTML
677         /// </summary>
678         /// <returns></returns>
679         public bool CanPasteAsHtml()
680         {
681             return Clipboard.GetDataObject().GetDataPresent(DataFormats.Html); 
682         }
683 
684         /// <summary>
685         /// 是否可以全选
686         /// </summary>
687         /// <returns></returns>
688         public bool CanSelectAll()
689         {
690             return (richTextBox1.SelectedText.Length != richTextBox1.Text.Length);
691         }
692 
693         private void InitialRichTextBoxCtrl()
694         {
695             //ContextMenuStrip = contextMenuStrip1;
696             LinkClicked += new System.Windows.Forms.LinkClickedEventHandler(richTextBox1_LinkClicked); 
697         }
698 
699         /// <summary>
700         /// 自动打开超链接
701         /// </summary>
702         /// <param name="sender"></param>
703         /// <param name="e"></param>
704         private void richTextBox1_LinkClicked(object sender, LinkClickedEventArgs e)
705         {
706             DialogResult b = MessageBox.Show("你要打开此链接吗?\n" + e.LinkText, "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
707             if (b == DialogResult.Yes)
708             {
709                 System.Diagnostics.Process.Start("iexplore.exe", e.LinkText);
710             }
711         }
712 
713 
714         #endregion
715 
716         #region RichTextBox 通用对话框
717 
718         //private FindDialog FindDlg = new FindDialog();
719         //private ReplaceDialog ReplaceDlg=new ReplaceDialog();
720 
721         /// <summary>
722         /// 查找对话框
723         /// </summary>
724         public void ShowFindDlg()
725         {
726             FindDialog FindDlg = new FindDialog();
727             FindDlg.richTextBox1 = this;
728             FindDlg.textBox1.Text = this.SelectedText;
729             FindDlg.StartPosition = FormStartPosition.CenterParent;
730             FindDlg.ShowDialog();
731         }
732 
733         /// <summary>
734         /// 替换 对话框
735         /// </summary>
736         public void ShowReplaceDlg()
737         {
738             ReplaceDialog ReplaceDlg = new ReplaceDialog();
739             ReplaceDlg.StartPosition = FormStartPosition.CenterParent;
740             ReplaceDlg.richTextBox1 = this;
741             ReplaceDlg.textBox1.Text = this.SelectedText;
742             ReplaceDlg.ShowDialog();
743         }
744 
745         /// <summary>
746         /// 字体对话框
747         /// </summary>
748         public void ShowFontDlg()
749         {
750             FontDialog fontDialog1 = new FontDialog();
751             fontDialog1.Font = richTextBox1.Font;
752             if (fontDialog1.ShowDialog() == DialogResult.OK)
753             {
754                 richTextBox1.Font = fontDialog1.Font;
755 
756             }
757         }
758         /// <summary>
759         /// 转到 对话框
760         /// </summary>
761         public void ShowGoToDlg()
762         {
763             Point pt = this.GetCaretPosition();
764 
765             frm_GOTO frm = new frm_GOTO();
766             frm.label1.Text = "等号(1 - " + this.Lines.Length.ToString() + ")(&L)";         
767             frm.textBox1.Text = pt.X.ToString();
768             if (frm.ShowDialog() == DialogResult.OK)
769             {
770                 int Line = Convert.ToInt32(frm.textBox1.Text);
771                 if (Line >= 1)
772                 {
773                     if (Line > this.Lines.Length+1)
774                     {
775                         MessageBox.Show("行数大于现有的行数");
776                     }
777                     else
778                     {
779                         this.jumpLine(Line);
780                     }
781                 }
782             }
783         }
784 
785         //RichTextBox 插入图片
786         public void ShowInsertImageDlg()
787         {
788             OpenFileDialog OpenFileDialog1 = new OpenFileDialog();
789             OpenFileDialog1.Title = "Select Image";
790             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|*.*";
791             OpenFileDialog1.FilterIndex = 6;
792             if (OpenFileDialog1.ShowDialog() == DialogResult.OK)
793             {
794                 string strImagePath = OpenFileDialog1.FileName;
795                 Image img;
796                 img = Image.FromFile(strImagePath);
797                 Clipboard.SetDataObject(img);
798                 DataFormats.Format df;
799                 df = DataFormats.GetFormat(DataFormats.Bitmap);
800                 if (this.CanPaste(df))
801                 {
802                     this.Paste(df);
803                 }
804             }
805         }     
806 
807         //插入表格对话框
808         public void ShowInsertTableDlg()
809         {
810             richTextBoxTableDlg dlg = new richTextBoxTableDlg();
811             dlg.richTextBox = this;
812 
813             if (dlg.ShowDialog() == DialogResult.OK)
814             {
815                 richTextBoxTable r1 = new richTextBoxTable();
816                 r1.richTextBox = this;
817                 r1.cellWidth = (int)dlg.numericUpDownCellWidth.Value;
818                 r1.InsertTable((int)dlg.numericUpDownColumn.Value, (int)dlg.numericUpDownRow.Value, dlg.radioButtonAutoSzie.Checked);
819             }
820         }
821 
822 
823         public void ShowViewSourceDlg()
824         {
825             ViewRtfSoruceDlg rtfdlg = new ViewRtfSoruceDlg();
826 
827             string s = string.Format("文件很大 请等待... {0}KB", (richTextBox1.Rtf.Length /1204));
828          
829             //if (richTextBox1.Rtf.Length > 1024*1024)
830             //    MessageBox.Show(s);
831 
832             rtfdlg.textBox1.Text = richTextBox1.Rtf;
833             if (rtfdlg.ShowDialog()==DialogResult.OK)
834             {
835                 richTextBox1.Rtf = rtfdlg.textBox1.Text;
836             }
837             Application.DoEvents();
838         }
839         #endregion
840 
841         #region RichTextBox 是否显示行号
842         #endregion
843 
844         #region 实现 页面设置  打印预览 打印
845 
846         //页面设置
847         public void ShowPageSetupDlg()
848         {
849             richTextBoxPrintClass r = new richTextBoxPrintClass();
850             r.richTextBox = this;
851             r.ShowPageSetupDlg();
852         }
853         //打印预览功能
854         public void ShowShowPagePriviewDlg()
855         {
856             richTextBoxPrintClass r = new richTextBoxPrintClass();
857             r.richTextBox = this;
858             r.ShowShowPagePriviewDlg();
859         }
860 
861         //打印
862         public void ShowPrintDlg()
863         {
864             richTextBoxPrintClass r = new richTextBoxPrintClass();
865             r.richTextBox = this;
866             r.ShowPrintDlg();
867         }
868 #endregion
869 
870         #region 支持表格正确粘贴
871 
872         
873         // P/Invoke declarations
874         [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
875         private static extern IntPtr LoadLibrary(string path);
876 
877         private static IntPtr moduleHandle;
878 
879         protected override CreateParams CreateParams
880         {
881             get
882             {
883                 if (moduleHandle == IntPtr.Zero)
884                 {
885                     moduleHandle = LoadLibrary("msftedit.dll");
886                     if ((long)moduleHandle < 0x20)
887                     {
888                         throw new Win32Exception(Marshal.GetLastWin32Error(), "Could not load Msftedit.dll");
889                     }
890                 }
891 
892                 CreateParams createParams = base.CreateParams;
893                 createParams.ClassName = "RichEdit50W";
894                 if (this.Multiline)
895                 {
896                     if (((this.ScrollBars & RichTextBoxScrollBars.Horizontal) != RichTextBoxScrollBars.None) && !base.WordWrap)
897                     {
898                         createParams.Style |= 0x100000;
899                         if ((this.ScrollBars & ((RichTextBoxScrollBars)0x10)) != RichTextBoxScrollBars.None)
900                         {
901                             createParams.Style |= 0x2000;
902                         }
903                     }
904                     if ((this.ScrollBars & RichTextBoxScrollBars.Vertical) != RichTextBoxScrollBars.None)
905                     {
906                         createParams.Style |= 0x200000;
907                         if ((this.ScrollBars & ((RichTextBoxScrollBars)0x10)) != RichTextBoxScrollBars.None)
908                         {
909                             createParams.Style |= 0x2000;
910                         }
911                     }
912                 }
913                 if ((BorderStyle.FixedSingle == base.BorderStyle) && ((createParams.Style & 0x800000) != 0))
914                 {
915                     createParams.Style &= -8388609;
916                     createParams.ExStyle |= 0x200;
917                 }
918                 return createParams;
919             }
920         }
921         #endregion
922     }
923 
924 }

RichTextBoxCtrl.CS

 

//

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Text;
  4 using System.Windows.Forms;
  5 using System.Runtime.InteropServices;
  6 
  7 
  8 //2013-11-27 02:00:13
  9 ////清除样式
 10 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 11 //r.richTextBox = richTextBox1;
 12 //r.RemoveSelectionParaFormat2();
 13 
 14 
 15 ////属性获得
 16 
 17 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 18 //r.richTextBox = richTextBox1;
 19 //btn.Checked = r.SelectionOrderList;
 20 
 21 
 22 ////设置样式
 23 //richTextBoxBulletClass r = new richTextBoxBulletClass();
 24 //r.richTextBox = richTextBox1;
 25 //r.SelectionOrderList = !r.SelectionOrderList;
 26 
 27 namespace RichTextBoxCtrl
 28 {
 29     class richTextBoxBulletClass
 30     {
 31         public RichTextBox richTextBox;
 32         public richTextBoxBulletClass()
 33         {
 34             richTextBox = new RichTextBox();
 35         }
 36 
 37         #region PARAFORMAT2
 38         [StructLayout(LayoutKind.Sequential)]
 39         private class PARAFORMAT2
 40         {
 41             public int cbSize;
 42             public int dwMask;
 43             public short wNumbering;
 44             public short wReserved;
 45             public int dxStartIndent;
 46             public int dxRightIndent;
 47             public int dxOffset;
 48             public short wAlignment;
 49             public short cTabCount;
 50             [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x20)]
 51             public int[] rgxTabs;
 52 
 53             public int dySpaceBefore;     // Vertical spacing before para
 54             public int dySpaceAfter;     // Vertical spacing after para
 55             public int dyLineSpacing;     // Line spacing depending on Rule
 56             public short sStyle;         // Style handle
 57             public byte bLineSpacingRule;     // Rule for line spacing (see tom.doc)
 58             public byte bOutlineLevel;     // Outline Level
 59             public short wShadingWeight;     // Shading in hundredths of a per cent
 60             public short wShadingStyle;     // Byte 0: style, nib 2: cfpat, 3: cbpat
 61             public short wNumberingStart;     // Starting value for numbering
 62             public short wNumberingStyle;     // Alignment, Roman/Arabic, (), ), ., etc.
 63             public short wNumberingTab;     // Space bet 1st indent and 1st-line text
 64             public short wBorderSpace;     // Border-text spaces (nbl/bdr in pts)
 65             public short wBorderWidth;     // Pen widths (nbl/bdr in half twips)
 66             public short wBorders;         // Border styles (nibble/border)
 67 
 68             public PARAFORMAT2()
 69             {
 70                 this.cbSize = Marshal.SizeOf(typeof(PARAFORMAT2));
 71             }
 72         }
 73         #endregion
 74 
 75         #region PARAFORMAT MASK VALUES
 76 
 77 
 78 
 79         public const uint WM_USER = 0x0400;
 80         // RichEdit messages 
 81         public const uint EM_GETPARAFORMAT = (WM_USER + 61);
 82         public const uint EM_SETPARAFORMAT = (WM_USER + 71);
 83 
 84         // PARAFORMAT mask values
 85         public const uint PFM_OFFSET = 0x00000004;
 86         public const uint PFM_NUMBERING = 0x00000020;
 87 
 88         // PARAFORMAT 2.0 masks and effects
 89         public const uint PFM_NUMBERINGSTYLE = 0x00002000;//设置项目编号的样式
 90         public const uint PFM_NUMBERINGTAB = 0x00004000;//设置项目编号按下Tab键的信息
 91         public const uint PFM_NUMBERINGSTART = 0x00008000;//设置项目编号的开始标识
 92 
 93 
 94 
 95         //wNumbering
 96         //Options used for bulleted or numbered paragraphs. 
 97         //To use this member, set the PFM_NUMBERING flag in the dwMask member. 
 98         //This member can be one of the following values.
 99         public enum Paraformat2Numbering
100         {
101             zero = 0,
102             Normal = 1,             //No paragraph numbering or bullets.
103             ArabicNumbers = 2,      //Uses Arabic numbers (1, 2, 3, ...). 
104             LowerCaseLetter = 3,    //Uses lowercase letters (a, b, c, ...). 
105             UpperCaseLetter = 4,    //Uses uppercase letters (A, B, C, ...). 
106             LowerCaseRoman = 5,     //Uses lowercase Roman numerals (i, ii, iii, ...). 
107             UpperCaseRoman = 6      //Uses uppercase Roman numerals (I, II, III, ...). 
108         }
109 
110         //wNumberingStyle
111         //Numbering style used with numbered paragraphs. 
112         //Use this member in conjunction with the wNumbering member. 
113         //This member is included only for compatibility with TOM interfaces;
114         //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.
115         //To use this member, set the PFM_NUMBERINGSTYLE flag in the dwMask member. 
116         //This member can be one of the following values. 
117         public enum Paraformat2NumberingStyle
118         {
119             RightParenthesis = 0x000,//Follows the number with a right parenthesis.
120             DoubleParenthesis = 0x100,//Encloses the number in parentheses.
121             Period = 0x200,//Follows the number with a period.
122             Plain = 0x300,//Displays only the number.
123             zero = 0x400//Continues a numbered list without applying the next number or bullet. 
124         }
125 
126         #endregion
127 
128         #region SetSelectionParaFormat2
129 
130         [DllImport("user32.dll")]
131         private static extern IntPtr SendMessage(IntPtr hWnd, uint msg, uint wParam, [In, Out, MarshalAs(UnmanagedType.LPStruct)] PARAFORMAT2 lParam);
132 
133         public void SetSelectionParaFormat2(Paraformat2NumberingStyle style, Paraformat2Numbering Number)
134         {
135             PARAFORMAT2 p = new PARAFORMAT2();
136             p.dwMask = (int)(PFM_NUMBERING | PFM_OFFSET | PFM_NUMBERINGSTART | PFM_NUMBERINGSTYLE | PFM_NUMBERINGTAB);
137 
138             p.wNumbering = (short)Number;
139             //p.dxOffset = BulletIndent;
140             p.wNumberingStyle = (short)style;
141             p.wNumberingStart = 1;
142             p.wNumberingTab = 500;
143 
144             SendMessage(richTextBox.Handle, EM_SETPARAFORMAT, 0, p);
145         }
146         #endregion
147 
148 
149         //获得 wNumbering的返回值
150         public Paraformat2Numbering GetSelectionParaformat2wNumbering()
151         {
152             PARAFORMAT2 p = new PARAFORMAT2();
153             SendMessage(richTextBox.Handle, EM_GETPARAFORMAT, 0, p);
154             return (Paraformat2Numbering)p.wNumbering;
155         }
156 
157         //获得wNumberingStyleg的返回值
158         public Paraformat2NumberingStyle GetSelectionParaformat2wNumberingStyle()
159         {
160             PARAFORMAT2 p = new PARAFORMAT2();
161             SendMessage(richTextBox.Handle, EM_GETPARAFORMAT, 0, p);
162             return (Paraformat2NumberingStyle)p.wNumberingStyle;
163         }
164 
165         #region 更多样式... ...
166 
167         private void test()
168         {
169             //●●●●
170             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.Normal);
171             //1 2 3 4 5 ...
172             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.ArabicNumbers);
173             //1. 2. 3. 4. 5.  ...
174             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.ArabicNumbers);
175             //1) 2) 3) 4) ...
176             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.ArabicNumbers);
177             //(1) (2) (3) (4) ...
178             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.ArabicNumbers);
179             //////////////////////////////////////////////////////////////////////////
180 
181             //a b c d e 
182             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.LowerCaseLetter);
183             //a. b. c. d. e.
184             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.LowerCaseLetter);
185             //a) b) c) d) e)
186             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.LowerCaseLetter);
187             //(a) (b) (c) (d) (e)
188             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.LowerCaseLetter);
189             //////////////////////////////////////////////////////////////////////////
190 
191             //A B C D E 
192             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.UpperCaseLetter);
193             //A. B. C. D. E.
194             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.UpperCaseLetter);
195             //A) B) C) D) E)
196             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.UpperCaseLetter);
197             //(A) (B) (C) (D) (E)
198             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.UpperCaseLetter);
199             //////////////////////////////////////////////////////////////////////////
200 
201             //I II III IIII IV 
202             SetSelectionParaFormat2(Paraformat2NumberingStyle.Plain, Paraformat2Numbering.LowerCaseRoman);
203             //I. II. III. IIII. IV. 
204             SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.LowerCaseRoman);
205             //I) II) III) IIII) IV) 
206             SetSelectionParaFormat2(Paraformat2NumberingStyle.RightParenthesis, Paraformat2Numbering.LowerCaseRoman);
207             //(I) (II) (III) (IIII) (IV) 
208             SetSelectionParaFormat2(Paraformat2NumberingStyle.DoubleParenthesis, Paraformat2Numbering.LowerCaseRoman);
209             //////////////////////////////////////////////////////////////////////////
210 
211         }
212         #endregion
213 
214 
215 
216         //清除选中的样式
217         public void RemoveSelectionParaFormat2()
218         {
219             SetSelectionParaFormat2(0, 0);
220         }
221 
222 
223 
224         #region  数字序列 1. 2. 3. 4. 5.  ...
225         private bool bOrder = false;
226         public bool SelectionOrderList
227         {
228             get
229             {
230                 return (
231                        (GetSelectionParaformat2wNumbering() == Paraformat2Numbering.ArabicNumbers) &&
232                        (GetSelectionParaformat2wNumberingStyle() == Paraformat2NumberingStyle.Period)
233                        );
234 
235             }
236             set
237             {
238                 bOrder = value;
239 
240                 if (value == true)
241                     SetSelectionParaFormat2(Paraformat2NumberingStyle.Period, Paraformat2Numbering.ArabicNumbers);
242                 else
243                     RemoveSelectionParaFormat2();
244             }
245         }
246         #endregion
247 
248     }
249 }

richTextBoxBulletClass.CS

 

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Windows.Forms;
  6 using System.Drawing;
  7 
  8 
  9 //使用
 10 ////set font Size font Style bold Italic
 11 ////
 12 ////普通  not bold italic 
 13 ////标题1  字体大小　24 Bold
 14 ////标题2  字体大小　18 Bold
 15 ////标题3  字体大小　14 Bold
 16 ////标题4  字体大小　12 Bold
 17 ////标题5  字体大小　10 Bold
 18 ////标题6  字体大小　8  Bold
 19 ////地址   字体大小　12 Italic
 20 
 21 //private RichTextBoxCtrl.richTextBoxFontFormatClass r = new RichTextBoxCtrl.richTextBoxFontFormatClass();
 22 //private void Form1_Load(object sender, EventArgs e)
 23 //{
 24 //    r.richTextBox = richTextBox1;
 25 //    comboBox1.Items.Clear();
 26 //    comboBox1.Items.AddRange(new object[] {
 27 //             "普通",
 28 //             "标题1",
 29 //             "标题2",
 30 //             "标题3",
 31 //             "标题4",
 32 //             "标题5",
 33 //             "标题6",
 34 //             "地址 "});
 35 //}
 36 
 37 //private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
 38 //{
 39 //    r.SetFontFormat(comboBox1.SelectedIndex);
 40 
 41 //    //SetFontFormat(comboBox1.SelectedIndex);
 42 //    Text = r.GetFontFormat().ToString();
 43 //}
 44 
 45 //private void richTextBox1_SelectionChanged(object sender, EventArgs e)
 46 //{
 47 //    Text = r.GetFontFormat();
 48 //    comboBox1.Text = r.GetFontFormat();
 49 //}
 50 
 51 namespace RichTextBoxCtrl
 52 {
 53     class richTextBoxFontFormatClass
 54     {
 55         public richTextBoxFontFormatClass()
 56         {
 57 
 58         }
 59         public RichTextBox richTextBox;
 60       
 61         public void SetFontFormat(int formatIndex)
 62         {
 63             float fontSize = richTextBox.Font.Size;
 64             string fontName = richTextBox.Font.Name;
 65             switch (formatIndex)
 66             {
 67                 case 0://普通
 68                     richTextBox.SelectionFont = new Font(fontName, fontSize, FontStyle.Regular);
 69                     break;
 70                 case 1://标题1 
 71                     richTextBox.SelectionFont = new Font(fontName, 24f, FontStyle.Bold);
 72                     break;
 73                 case 2: //标题2
 74                     richTextBox.SelectionFont = new Font(fontName, 18f, FontStyle.Bold);
 75                     break;
 76                 case 3: //标题3
 77                     richTextBox.SelectionFont = new Font(fontName, 14f, FontStyle.Bold);
 78                     break;
 79                 case 4://标题4
 80                     richTextBox.SelectionFont = new Font(fontName, 12f, FontStyle.Bold);
 81                     break;
 82                 case 5: //标题5
 83                     richTextBox.SelectionFont = new Font(fontName, 10f, FontStyle.Bold);
 84                     break;
 85                 case 6: //标题6
 86                     richTextBox.SelectionFont = new Font(fontName, 8f, FontStyle.Bold);
 87                     break;
 88                 case 7: //地址
 89                     richTextBox.SelectionFont = new Font(fontName, 12f, FontStyle.Italic);
 90                     break;
 91             }
 92         }
 93         public string GetFontFormat()
 94         {
 95             string Result = "普通";
 96             if (richTextBox.SelectionFont !=null )
 97             {           
 98                 float fontSize = richTextBox.SelectionFont.Size;
 99                 FontStyle fontStyle = richTextBox.SelectionFont.Style;
100 
101                 if (fontSize == 24 && fontStyle == FontStyle.Bold)
102                     Result = "标题1";
103                 else
104                 if (fontSize == 18 && fontStyle == FontStyle.Bold)
105                     Result = "标题2";
106                 else
107                 if (fontSize == 14 && fontStyle == FontStyle.Bold)
108                     Result = "标题3";
109                 else
110                 if (fontSize == 12 && fontStyle == FontStyle.Bold)
111                     Result = "标题4";
112                 else
113                 if (fontSize == 10 && fontStyle == FontStyle.Bold)
114                     Result = "标题5";
115                 else
116                 if (fontSize == 8 && fontStyle == FontStyle.Bold)
117                     Result = "标题6";
118                 else
119                 if (fontSize == 12 && fontStyle == FontStyle.Italic)
120                     Result = "地址";
121                 else
122                     Result = "普通";
123             }
124             else
125                 Result = "普通";
126             return Result;
127         }
128     }
129 }

richTextBoxFontFormatClass.CS

 

  1 using System;
  2 using System.Windows.Forms;
  3 using System.Drawing;
  4 using System.Runtime.InteropServices;
  5 using System.Drawing.Printing;
  6 
  7 
  8 #region 调用示例
  9 /*使用
 10 //页面设置
 11 private void btnPageSetup_Click(object sender, EventArgs e)
 12 {
 13     richTextBoxPrintClass r = new richTextBoxPrintClass();
 14     r.richTextBox = richTextBox1;
 15     r.ShowPageSetupDlg();
 16 }
 17 //打印预览功能
 18 private void btnPrintPreview_Click(object sender, EventArgs e)
 19 {
 20     richTextBoxPrintClass r = new richTextBoxPrintClass();
 21     r.richTextBox = richTextBox1;
 22     r.ShowShowPagePriviewDlg();
 23 }
 24 //打印
 25 private void btnPrint_Click(object sender, EventArgs e)
 26 {
 27     richTextBoxPrintClass r = new richTextBoxPrintClass();
 28     r.richTextBox = richTextBox1;
 29     r.ShowPrintDlg();
 30 }
 31 */
 32 #endregion
 33 //http://support.microsoft.com/kb/812425/zh-cn
 34 namespace RichTextBoxCtrl
 35 {
 36     class richTextBoxPrintClass
 37     {
 38         public richTextBoxPrintClass()
 39         {
 40             InitializeComponent();
 41         }
 42         #region 打印功用
 43 
 44         //and the unit used by Win32 API calls (twips 1/1440 inch)
 45         private const double anInch = 14.4;
 46 
 47         [StructLayout(LayoutKind.Sequential)]
 48         private struct RECT
 49         {
 50             public int Left;
 51             public int Top;
 52             public int Right;
 53             public int Bottom;
 54         }
 55 
 56         [StructLayout(LayoutKind.Sequential)]
 57         private struct CHARRANGE
 58         {
 59             public int cpMin;         //First character of range (0 for start of doc)
 60             public int cpMax;           //Last character of range (-1 for end of doc)
 61         }
 62 
 63         [StructLayout(LayoutKind.Sequential)]
 64         private struct FORMATRANGE
 65         {
 66             public IntPtr hdc;             //Actual DC to draw on
 67             public IntPtr hdcTarget;       //Target DC for determining text formatting
 68             public RECT rc;                //Region of the DC to draw to (in twips)
 69             public RECT rcPage;            //Region of the whole DC (page size) (in twips)
 70             public CHARRANGE chrg;         //Range of text to draw (see earlier declaration)
 71         }
 72 
 73         private const int WM_USER = 0x0400;
 74         private const int EM_FORMATRANGE = WM_USER + 57;
 75 
 76         [DllImport("USER32.dll")]
 77         private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wp, IntPtr lp);
 78 
 79 
 80         // Render the contents of the RichTextBox for printing
 81         //    Return the last character printed + 1 (printing start from this point for next page)
 82         public static int Print(RichTextBox richTextBox, int charFrom, int charTo, PrintPageEventArgs e)
 83         {
 84             //Calculate the area to render and print
 85             RECT rectToPrint;
 86             rectToPrint.Top = (int)(e.MarginBounds.Top * anInch);
 87             rectToPrint.Bottom = (int)(e.MarginBounds.Bottom * anInch);
 88             rectToPrint.Left = (int)(e.MarginBounds.Left * anInch);
 89             rectToPrint.Right = (int)(e.MarginBounds.Right * anInch);
 90 
 91             //Calculate the size of the page
 92             RECT rectPage;
 93             rectPage.Top = (int)(e.PageBounds.Top * anInch);
 94             rectPage.Bottom = (int)(e.PageBounds.Bottom * anInch);
 95             rectPage.Left = (int)(e.PageBounds.Left * anInch);
 96             rectPage.Right = (int)(e.PageBounds.Right * anInch);
 97 
 98             IntPtr hdc = e.Graphics.GetHdc();
 99 
100             FORMATRANGE fmtRange;
101             fmtRange.chrg.cpMax = charTo;                //Indicate character from to character to 
102             fmtRange.chrg.cpMin = charFrom;
103             fmtRange.hdc = hdc;                    //Use the same DC for measuring and rendering
104             fmtRange.hdcTarget = hdc;              //Point at printer hDC
105             fmtRange.rc = rectToPrint;             //Indicate the area on page to print
106             fmtRange.rcPage = rectPage;            //Indicate size of page
107 
108             IntPtr res = IntPtr.Zero;
109 
110             IntPtr wparam = IntPtr.Zero;
111             wparam = new IntPtr(1);
112 
113             //Get the pointer to the FORMATRANGE structure in memory
114             IntPtr lparam = IntPtr.Zero;
115             lparam = Marshal.AllocCoTaskMem(Marshal.SizeOf(fmtRange));
116             Marshal.StructureToPtr(fmtRange, lparam, false);
117 
118             //Send the rendered data for printing 
119             res = SendMessage(richTextBox.Handle, EM_FORMATRANGE, wparam, lparam);
120 
121             //Free the block of memory allocated
122             Marshal.FreeCoTaskMem(lparam);
123 
124             //Release the device context handle obtained by a previous call
125             e.Graphics.ReleaseHdc(hdc);
126 
127             //Return last + 1 character printer
128             return res.ToInt32();
129         }
130 
131         #endregion
132 
133 
134         #region 初始化
135         public RichTextBox richTextBox;
136         private PageSetupDialog pageSetupDialog1;
137         private PrintDialog printDialog1;
138         private PrintDocument printDocument1;
139         private PrintPreviewDialog printPreviewDialog1;
140 
141         private void InitializeComponent()
142         {
143             richTextBox = new RichTextBox();
144             pageSetupDialog1 = new PageSetupDialog();
145             printDialog1 = new PrintDialog();
146             printDocument1 = new PrintDocument();
147             printPreviewDialog1 = new PrintPreviewDialog();
148 
149             // 
150             // pageSetupDialog1
151             // 
152             pageSetupDialog1.Document = printDocument1;
153             // 
154             // printDialog1
155             // 
156             printDialog1.Document = printDocument1;
157             printDialog1.UseEXDialog = true;
158             // 
159             // printDocument1
160             // 
161             printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(printDocument1_PrintPage);
162             printDocument1.BeginPrint += new System.Drawing.Printing.PrintEventHandler(printDocument1_BeginPrint);
163             // 
164             // printPreviewDialog1
165             // 
166 
167             printPreviewDialog1.AutoScrollMargin = new System.Drawing.Size(0, 0);
168             printPreviewDialog1.AutoScrollMinSize = new System.Drawing.Size(0, 0);
169             printPreviewDialog1.ClientSize = new System.Drawing.Size(400, 300);
170             printPreviewDialog1.Document = printDocument1;
171             printPreviewDialog1.Enabled = true;
172             // printPreviewDialog1.Icon = ((System.Drawing.Icon)(resources.GetObject("printPreviewDialog1.Icon")));
173             printPreviewDialog1.Name = "printPreviewDialog1";
174             printPreviewDialog1.Visible = false;
175         }
176 
177 
178         private int checkPrint;
179         private void printDocument1_BeginPrint(object sender, System.Drawing.Printing.PrintEventArgs e)
180         {
181             checkPrint = 0;
182         }
183 
184         private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
185         {
186             // Print the content of RichTextBox. Store the last character printed.
187             //checkPrint = richTextBoxPrintCtrl1.Print(checkPrint, richTextBoxPrintCtrl1.TextLength, e);
188             checkPrint = richTextBoxPrintClass.Print(richTextBox, checkPrint, richTextBox.TextLength, e);
189 
190             // Check for more pages
191             if (checkPrint < richTextBox.TextLength)
192                 e.HasMorePages = true;
193             else
194                 e.HasMorePages = false;
195         }
196 
197 
198         #endregion
199 
200 
201         //页面设置功能
202         public void ShowPageSetupDlg()
203         {
204             pageSetupDialog1.ShowDialog();
205         }
206 
207         //打印预览功能
208         public void ShowShowPagePriviewDlg()
209         {
210             printPreviewDialog1.ShowDialog();
211         }
212 
213         //打印
214         public void ShowPrintDlg()
215         {
216             if (printDialog1.ShowDialog() == DialogResult.OK)
217                 printDocument1.Print();
218         }
219     }
220 }

richTextBoxPrintClass.CS

 

 1 using System;
 2 using System.Runtime.InteropServices;
 3 using System.Windows.Forms;
 4 using System.Text;
 5 
 6 //private void button2_Click(object sender, EventArgs e)
 7 //{
 8 //    richTextBoxTableDlg dlg = new richTextBoxTableDlg();
 9 //    dlg.richTextBox = richTextBox51;
10 
11 //    if (dlg.ShowDialog() ==DialogResult.OK)
12 //    {
13 //        richTextBoxTable r1 = new richTextBoxTable();
14 //        r1.richTextBox = richTextBox51;
15 //        r1.cellWidth = (int)dlg.numericUpDownCellWidth.Value  ;
16 //        r1.InsertTable((int)dlg.numericUpDownColumn.Value, (int)dlg.numericUpDownRow.Value, dlg.radioButtonAutoSzie.Checked);  
17 //    }
18 //}
19 /*
20  * 光标在表格上可以改变光标
21  */
22 
23 namespace richTextBoxTableClass
24 {
25     public class richTextBoxTable 
26     {
27       
28         public richTextBoxTable()
29         {
30 
31         }
32 
33        public RichTextBox richTextBox;
34        public int cellWidth;// = 1000;//default =1000
35 
36         /// <summary>
37         /// 插入表格
38         /// </summary>
39         /// <param name="col">行</param>
40         /// <param name="row">列</param>
41         /// <param name="AutoSize">=TRUE:自动设置每个单元格的大小</param>
42         public void InsertTable(int col, int row,bool AutoSize)
43         {
44             StringBuilder rtf = new StringBuilder();
45             rtf.Append(@"{\rtf1 ");
46 
47             //int cellWidth = 1000;//col.1 width =1000
48             if (AutoSize)
49                 //滚动条出现时 (richTextBox.ClientSize.Width - 滚动条的宽 /列的个数)*15
50                 cellWidth = ((richTextBox.ClientSize.Width-3) / row) * 15; 
51             for (int i = 0; i < col; i++)
52             {
53                 rtf.Append(@"\trowd");
54                 for (int j = 1; j <= row; j++)
55                     rtf.Append(@"\cellx" + (j * cellWidth).ToString());
56                 rtf.Append(@"\intbl \cell \row"); //create row
57             }
58             rtf.Append(@"\pard");
59             rtf.Append(@"}");
60             richTextBox.SelectedRtf = rtf.ToString();
61             //return rtf.ToString();
62         }
63     }
64 }

richTextBoxTableClass