rtf格式内容转html

 

最近项目里需要把以前的客户问题数据导入到新的系统中来,从开始到完成整整花了一天半的时间,现把大概的一些开发过程记录如下:

 

一.分析

图A

图B

 要从A中的内容转成B,先分析图A

    1.A中内容是经过base64编码过的;

    2.A中可能有0张或1张以上图片;

           3.转化后看出内容是rtf格式

,所以,核心是rtf格式的转化是实现的难点。

 二.实现 

    1.从数据库里读出数据(略)

        2.把 解码 base64的内容成字符串

  

 1  string strPress=   Decompress(Convert.FromBase64String(QuestionContent))
 2 
 3          
 4 
 5 
 6         /// <summary>
 7         /// 解压缩字符串
 8         /// </summary>
 9         /// <param name="buf">压缩后的的数据</param>
10         /// <returns>解压后的数据</returns>
11         public static string Decompress(byte[] buf)
12         {
13             if (buf.Length < 1)
14                 return "";
15 
16             long totalLength = 0;
17             int size = 0;
18             MemoryStream ms = new MemoryStream(), msD = new MemoryStream();
19             ms.Write(buf, 0, buf.Length);
20             ms.Seek(0, SeekOrigin.Begin);
21             GZipStream zip;
22             zip = new GZipStream(ms, CompressionMode.Decompress);
23             byte[] db;
24             bool readed = false;
25             while (true)
26             {
27                 size = zip.ReadByte();
28                 if (size != -1)
29                 {
30                     if (!readed) readed = true;
31                     totalLength++;
32                     msD.WriteByte((byte)size);
33                 }
34                 else
35                 {
36                     if (readed) break;
37                 }
38             }
39             zip.Close();
40             db = msD.ToArray();
41             msD.Close();
42             return Encoding.UTF8.GetString(db);
43         }

  转后,就是主要对rtf格式的转化,先正则把图片代码保存起来

  

 1    /// <summary>
 2         /// 找出图片并格式化
 3         /// </summary>
 4         /// <param name="RtfText"></param>
 5         void SeparateImage(int QuestionId, string RtfText)
 6         {
 7             string TemRtfText = RtfText;
 8             int Sg = 1;
 9             string pattern = @"{\\pict(.|\n)*?}";
10             while (true)
11             {
12                 int _Index = TemRtfText.IndexOf("pichgoal");
13                 if (_Index == -1) break;
14                 RtfImage img = new RtfImage();
15                 Match mat = Regex.Match(TemRtfText, @"picwgoal[\d]+");
16                 img.Width = int.Parse(mat.Value.Replace("picwgoal", "")) / 15;
17                 mat = Regex.Match(TemRtfText, @"pichgoal[\d]+");
18                 img.Height = int.Parse(mat.Value.Replace("pichgoal", "")) / 15;
19                 TemRtfText = TemRtfText.Remove(0, _Index + 8);
20                 _Index = TemRtfText.IndexOf("\r\n");
21                 TemRtfText = TemRtfText.Remove(0, _Index);
22                 _Index = TemRtfText.IndexOf("}");
23                 img.FexCode = TemRtfText.Substring(0, _Index).Replace("\r\n", "");
24                 img.File = DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".jpeg";
25                 string RepTag = string.Format("[$$img{0}$$]", Sg);
26                 img.RepTag = RepTag;
27                 if (Regex.IsMatch(RtfText, pattern))
28                 {
29                     RtfText = RtfText.Replace(Regex.Match(RtfText, pattern).Groups[0].Value, RepTag);
30                 }
31                 TemRtfText = TemRtfText.Remove(0, _Index);
32                 ListImage.Add(img);
33                 Sg++;
34             }
35             ImageSave(QuestionId, RtfText);
36         }

保存图片

 1  /// <summary>
 2         /// 保存图片
 3         /// </summary>
 4         void ImageSave(int QuestionId, string RtfText)
 5         {
 6             foreach (var img in ListImage)
 7             {
 8                 Byte[] buffer;
 9                 buffer = null;
10                 int _Count = img.FexCode.Length / 2;
11                 buffer = new Byte[img.FexCode.Length / 2];
12 
13                 for (int z = 0; z != _Count; z++)
14                 {
15                     string _TempText = img.FexCode[z * 2].ToString() + img.FexCode[(z * 2) + 1].ToString();
16                     buffer[z] = Convert.ToByte(_TempText, 16);
17                 }
18 
19                 Action ac = () =>
20                 {
21                     MemoryStream ms = new MemoryStream(buffer);
22                     Image _a = Image.FromStream(ms);
23                     Bitmap bm = new Bitmap(_a, new Size(img.Width, img.Height));
24                     string file = img.File;
25                     lbpic.Text = (Convert.ToInt32(lbpic.Text) + 1).ToString();
26                     txtPic.Text += file + "\n";
27                     bm.Save(string.Format("{0}{1}", Config.SavePath, file), System.Drawing.Imaging.ImageFormat.Bmp);
28                     ms.Close();
29                     _a.Dispose();
30                 };
31                 ac.Invoke();
32                 Thread.Sleep(100);
33             }
34             ParseToHtml(QuestionId, RtfText);
35         }

解析RTf参考了下国外的一篇文章,网址现记不清楚了,

大概代码如下

View Code
  1     public static class HtmlFromXamlConverter
  2     {
  3         // ---------------------------------------------------------------------
  4         //
  5         // Internal Methods
  6         //
  7         // ---------------------------------------------------------------------
  8 
  9         #region Internal Methods
 10 
 11         /// <summary>
 12         /// Main entry point for Xaml-to-Html converter.
 13         /// Converts a xaml string into html string.
 14         /// </summary>
 15         /// <param name="xamlString">
 16         /// Xaml strinng to convert.
 17         /// </param>
 18         /// <returns>
 19         /// Html string produced from a source xaml.
 20         /// </returns>
 21         public static string ConvertXamlToHtml(string xamlString, bool asFullDocument)
 22         {
 23             XmlTextReader xamlReader;
 24             StringBuilder htmlStringBuilder;
 25             XmlTextWriter htmlWriter;
 26 
 27             xamlReader = new XmlTextReader(new StringReader(xamlString));
 28 
 29             htmlStringBuilder = new StringBuilder(100);
 30             htmlWriter = new XmlTextWriter(new StringWriter(htmlStringBuilder));
 31 
 32             if (!WriteFlowDocument(xamlReader, htmlWriter, asFullDocument))
 33             {
 34                 return "";
 35             }
 36 
 37             string htmlString = htmlStringBuilder.ToString();
 38 
 39             return htmlString;
 40         }
 41 
 42         #endregion Internal Methods
 43 
 44         // ---------------------------------------------------------------------
 45         //
 46         // Private Methods
 47         //
 48         // ---------------------------------------------------------------------
 49 
 50         #region Private Methods
 51         /// <summary>
 52         /// Processes a root level element of XAML (normally it's FlowDocument element).
 53         /// </summary>
 54         /// <param name="xamlReader">
 55         /// XmlTextReader for a source xaml.
 56         /// </param>
 57         /// <param name="htmlWriter">
 58         /// XmlTextWriter producing resulting html
 59         /// </param>
 60         private static bool WriteFlowDocument(XmlTextReader xamlReader, XmlTextWriter htmlWriter, bool asFullDocument)
 61         {
 62             if (!ReadNextToken(xamlReader))
 63             {
 64                 // Xaml content is empty - nothing to convert
 65                 return false;
 66             }
 67 
 68             if (xamlReader.NodeType != XmlNodeType.Element || xamlReader.Name != "FlowDocument")
 69             {
 70                 // Root FlowDocument elemet is missing
 71                 return false;
 72             }
 73 
 74             // Create a buffer StringBuilder for collecting css properties for inline STYLE attributes
 75             // on every element level (it will be re-initialized on every level).
 76             StringBuilder inlineStyle = new StringBuilder();
 77 
 78             if (asFullDocument)
 79             {
 80                 htmlWriter.WriteStartElement("HTML");
 81                 htmlWriter.WriteStartElement("BODY");
 82             }
 83             WriteFormattingProperties(xamlReader, htmlWriter, inlineStyle);
 84 
 85             WriteElementContent(xamlReader, htmlWriter, inlineStyle);
 86 
 87             if (asFullDocument)
 88             {
 89                 htmlWriter.WriteEndElement();
 90                 htmlWriter.WriteEndElement();
 91             }
 92             return true;
 93         }
 94 
 95         /// <summary>
 96         /// Reads attributes of the current xaml element and converts
 97         /// them into appropriate html attributes or css styles.
 98         /// </summary>
 99         /// <param name="xamlReader">
100         /// XmlTextReader which is expected to be at XmlNodeType.Element
101         /// (opening element tag) position.
102         /// The reader will remain at the same level after function complete.
103         /// </param>
104         /// <param name="htmlWriter">
105         /// XmlTextWriter for output html, which is expected to be in
106         /// after WriteStartElement state.
107         /// </param>
108         /// <param name="inlineStyle">
109         /// String builder for collecting css properties for inline STYLE attribute.
110         /// </param>
111         private static void WriteFormattingProperties(XmlTextReader xamlReader, XmlTextWriter htmlWriter, StringBuilder inlineStyle)
112         {
113             Debug.Assert(xamlReader.NodeType == XmlNodeType.Element);
114 
115             // Clear string builder for the inline style
116             inlineStyle.Remove(0, inlineStyle.Length);
117 
118             if (!xamlReader.HasAttributes)
119             {
120                 return;
121             }
122 
123             bool borderSet = false;
124 
125             while (xamlReader.MoveToNextAttribute())
126             {
127                 string css = null;
128 
129                 switch (xamlReader.Name)
130                 {
131                     // Character fomatting properties
132                     // ------------------------------
133                     case "Background":
134                         css = "background-color:" + ParseXamlColor(xamlReader.Value) + ";";
135                         break;
136                     case "FontFamily":
137                         css = "font-family:" + xamlReader.Value + ";";
138                         break;
139                     case "FontStyle":
140                         css = "font-style:" + xamlReader.Value.ToLower() + ";";
141                         break;
142                     case "FontWeight":
143                         css = "font-weight:" + xamlReader.Value.ToLower() + ";";
144                         break;
145                     case "FontStretch":
146                         break;
147                     case "FontSize":
148                         css = "font-size:" + xamlReader.Value + ";";
149                         break;
150                     case "Foreground":
151                         css = "color:" + ParseXamlColor(xamlReader.Value) + ";";
152                         break;
153                     case "TextDecorations":
154                         if (xamlReader.Value.ToLower() == "strikethrough")
155                             css = "text-decoration:line-through;";
156                         else
157                             css = "text-decoration:underline;";
158                         break;
159                     case "TextEffects":
160                         break;
161                     case "Emphasis":
162                         break;
163                     case "StandardLigatures":
164                         break;
165                     case "Variants":
166                         break;
167                     case "Capitals":
168                         break;
169                     case "Fraction":
170                         break;
171 
172                     // Paragraph formatting properties
173                     // -------------------------------
174                     case "Padding":
175                         css = "padding:" + ParseXamlThickness(xamlReader.Value) + ";";
176                         break;
177                     case "Margin":
178                         css = "margin:" + ParseXamlThickness(xamlReader.Value) + ";";
179                         break;
180                     case "BorderThickness":
181                         css = "border-width:" + ParseXamlThickness(xamlReader.Value) + ";";
182                         borderSet = true;
183                         break;
184                     case "BorderBrush":
185                         css = "border-color:" + ParseXamlColor(xamlReader.Value) + ";";
186                         borderSet = true;
187                         break;
188                     case "LineHeight":
189                         break;
190                     case "TextIndent":
191                         css = "text-indent:" + xamlReader.Value + ";";
192                         break;
193                     case "TextAlignment":
194                         css = "text-align:" + xamlReader.Value + ";";
195                         break;
196                     case "IsKeptTogether":
197                         break;
198                     case "IsKeptWithNext":
199                         break;
200                     case "ColumnBreakBefore":
201                         break;
202                     case "PageBreakBefore":
203                         break;
204                     case "FlowDirection":
205                         break;
206 
207                     // Table attributes
208                     // ----------------
209                     case "Width":
210                         css = "width:" + xamlReader.Value + ";";
211                         break;
212                     case "ColumnSpan":
213                         htmlWriter.WriteAttributeString("COLSPAN", xamlReader.Value);
214                         break;
215                     case "RowSpan":
216                         htmlWriter.WriteAttributeString("ROWSPAN", xamlReader.Value);
217                         break;
218 
219                     // Hyperlink Attributes
220                     case "NavigateUri":
221                         htmlWriter.WriteAttributeString("HREF", xamlReader.Value);
222                         break;
223 
224                     case "TargetName":
225                         htmlWriter.WriteAttributeString("TARGET", xamlReader.Value);
226                         break;
227                 }
228 
229                 if (css != null)
230                 {
231                     inlineStyle.Append(css);
232                 }
233             }
234 
235             if (borderSet)
236             {
237                 inlineStyle.Append("border-style:solid;mso-element:para-border-div;");
238             }
239 
240             // Return the xamlReader back to element level
241             xamlReader.MoveToElement();
242             Debug.Assert(xamlReader.NodeType == XmlNodeType.Element);
243         }
244 
245         private static string ParseXamlColor(string color)
246         {
247             if (color.StartsWith("#"))
248             {
249                 // Remove transparancy value
250                 color = "#" + color.Substring(3);
251             }
252             return color;
253         }
254 
255         private static string ParseXamlThickness(string thickness)
256         {
257             string[] values = thickness.Split(',');
258 
259             for (int i = 0; i < values.Length; i++)
260             {
261                 double value;
262                 if (double.TryParse(values[i], out value))
263                 {
264                     values[i] = Math.Ceiling(value).ToString();
265                 }
266                 else
267                 {
268                     values[i] = "1";
269                 }
270             }
271 
272             string cssThickness;
273             switch (values.Length)
274             {
275                 case 1:
276                     cssThickness = thickness;
277                     break;
278                 case 2:
279                     cssThickness = values[1] + " " + values[0];
280                     break;
281                 case 4:
282                     cssThickness = values[1] + " " + values[2] + " " + values[3] + " " + values[0];
283                     break;
284                 default:
285                     cssThickness = values[0];
286                     break;
287             }
288 
289             return cssThickness;
290         }
291 
292         /// <summary>
293         /// Reads a content of current xaml element, converts it
294         /// </summary>
295         /// <param name="xamlReader">
296         /// XmlTextReader which is expected to be at XmlNodeType.Element
297         /// (opening element tag) position.
298         /// </param>
299         /// <param name="htmlWriter">
300         /// May be null, in which case we are skipping the xaml element;
301         /// witout producing any output to html.
302         /// </param>
303         /// <param name="inlineStyle">
304         /// StringBuilder used for collecting css properties for inline STYLE attribute.
305         /// </param>
306         private static void WriteElementContent(XmlTextReader xamlReader, XmlTextWriter htmlWriter, StringBuilder inlineStyle)
307         {
308             Debug.Assert(xamlReader.NodeType == XmlNodeType.Element);
309 
310             bool elementContentStarted = false;
311 
312             if (xamlReader.IsEmptyElement)
313             {
314                 if (htmlWriter != null && !elementContentStarted && inlineStyle.Length > 0)
315                 {
316                     // Output STYLE attribute and clear inlineStyle buffer.
317                     htmlWriter.WriteAttributeString("STYLE", inlineStyle.ToString());
318                     inlineStyle.Remove(0, inlineStyle.Length);
319                 }
320                 elementContentStarted = true;
321             }
322             else
323             {
324                 while (ReadNextToken(xamlReader) && xamlReader.NodeType != XmlNodeType.EndElement)
325                 {
326                     switch (xamlReader.NodeType)
327                     {
328                         case XmlNodeType.Element:
329                             if (xamlReader.Name.Contains("."))
330                             {
331                                 AddComplexProperty(xamlReader, inlineStyle);
332                             }
333                             else
334                             {
335                                 if (htmlWriter != null && !elementContentStarted && inlineStyle.Length > 0)
336                                 {
337                                     // Output STYLE attribute and clear inlineStyle buffer.
338                                     htmlWriter.WriteAttributeString("STYLE", inlineStyle.ToString());
339                                     inlineStyle.Remove(0, inlineStyle.Length);
340                                 }
341                                 elementContentStarted = true;
342                                 WriteElement(xamlReader, htmlWriter, inlineStyle);
343                             }
344                             Debug.Assert(xamlReader.NodeType == XmlNodeType.EndElement || xamlReader.NodeType == XmlNodeType.Element && xamlReader.IsEmptyElement);
345                             break;
346                         case XmlNodeType.Comment:
347                             if (htmlWriter != null)
348                             {
349                                 if (!elementContentStarted && inlineStyle.Length > 0)
350                                 {
351                                     htmlWriter.WriteAttributeString("STYLE", inlineStyle.ToString());
352                                 }
353                                 htmlWriter.WriteComment(xamlReader.Value);
354                             }
355                             elementContentStarted = true;
356                             break;
357                         case XmlNodeType.CDATA:
358                         case XmlNodeType.Text:
359                         case XmlNodeType.SignificantWhitespace:
360                             if (htmlWriter != null)
361                             {
362                                 if (!elementContentStarted && inlineStyle.Length > 0)
363                                 {
364                                     htmlWriter.WriteAttributeString("STYLE", inlineStyle.ToString());
365                                 }
366                                 htmlWriter.WriteString(xamlReader.Value);
367                             }
368                             elementContentStarted = true;
369                             break;
370                     }
371                 }
372 
373                 Debug.Assert(xamlReader.NodeType == XmlNodeType.EndElement);
374             }
375         }
376 
377         /// <summary>
378         /// Conberts an element notation of complex property into
379         /// </summary>
380         /// <param name="xamlReader">
381         /// On entry this XmlTextReader must be on Element start tag;
382         /// on exit - on EndElement tag.
383         /// </param>
384         /// <param name="inlineStyle">
385         /// StringBuilder containing a value for STYLE attribute.
386         /// </param>
387         private static void AddComplexProperty(XmlTextReader xamlReader, StringBuilder inlineStyle)
388         {
389             Debug.Assert(xamlReader.NodeType == XmlNodeType.Element);
390 
391             if (inlineStyle != null && xamlReader.Name.EndsWith(".TextDecorations"))
392             {
393                 inlineStyle.Append("text-decoration:underline;");
394             }
395 
396             // Skip the element representing the complex property
397             WriteElementContent(xamlReader, /*htmlWriter:*/null, /*inlineStyle:*/null);
398         }
399 
400         /// <summary>
401         /// Converts a xaml element into an appropriate html element.
402         /// </summary>
403         /// <param name="xamlReader">
404         /// On entry this XmlTextReader must be on Element start tag;
405         /// on exit - on EndElement tag.
406         /// </param>
407         /// <param name="htmlWriter">
408         /// May be null, in which case we are skipping xaml content
409         /// without producing any html output
410         /// </param>
411         /// <param name="inlineStyle">
412         /// StringBuilder used for collecting css properties for inline STYLE attributes on every level.
413         /// </param>
414         private static void WriteElement(XmlTextReader xamlReader, XmlTextWriter htmlWriter, StringBuilder inlineStyle)
415         {
416             Debug.Assert(xamlReader.NodeType == XmlNodeType.Element);
417 
418             if (htmlWriter == null)
419             {
420                 // Skipping mode; recurse into the xaml element without any output
421                 WriteElementContent(xamlReader, /*htmlWriter:*/null, null);
422             }
423             else
424             {
425                 string htmlElementName = null;
426 
427                 switch (xamlReader.Name)
428                 {
429                     case "Run":
430                     case "Span":
431                         htmlElementName = "SPAN";
432                         break;
433                     case "InlineUIContainer":
434                         htmlElementName = "SPAN";
435                         break;
436                     case "Bold":
437                         htmlElementName = "B";
438                         break;
439                     case "Italic":
440                         htmlElementName = "I";
441                         break;
442                     case "Paragraph":
443                         htmlElementName = "P";
444                         break;
445                     case "BlockUIContainer":
446                         htmlElementName = "DIV";
447                         break;
448                     case "Section":
449                         htmlElementName = "DIV";
450                         break;
451                     case "Table":
452                         htmlElementName = "TABLE";
453                         break;
454                     case "TableColumn":
455                         htmlElementName = "COL";
456                         break;
457                     case "TableRowGroup":
458                         htmlElementName = "TBODY";
459                         break;
460                     case "TableRow":
461                         htmlElementName = "TR";
462                         break;
463                     case "TableCell":
464                         htmlElementName = "TD";
465                         break;
466                     case "List":
467                         string marker = xamlReader.GetAttribute("MarkerStyle");
468                         if (marker == null || marker == "None" || marker == "Disc" || marker == "Circle" || marker == "Square" || marker == "Box")
469                         {
470                             htmlElementName = "UL";
471                         }
472                         else
473                         {
474                             htmlElementName = "OL";
475                         }
476                         break;
477                     case "ListItem":
478                         htmlElementName = "LI";
479                         break;
480                     case "Hyperlink":
481                         htmlElementName = "A";
482                         break;
483                     default:
484                         htmlElementName = null; // Ignore the element
485                         break;
486                 }
487 
488                 if (htmlWriter != null && htmlElementName != null)
489                 {
490                     htmlWriter.WriteStartElement(htmlElementName);
491 
492                     WriteFormattingProperties(xamlReader, htmlWriter, inlineStyle);
493 
494                     WriteElementContent(xamlReader, htmlWriter, inlineStyle);
495 
496                     htmlWriter.WriteEndElement();
497                 }
498                 else
499                 {
500                     // Skip this unrecognized xaml element
501                     WriteElementContent(xamlReader, /*htmlWriter:*/null, null);
502                 }
503             }
504         }
505 
506         // Reader advance helpers
507         // ----------------------
508 
509         /// <summary>
510         /// Reads several items from xamlReader skipping all non-significant stuff.
511         /// </summary>
512         /// <param name="xamlReader">
513         /// XmlTextReader from tokens are being read.
514         /// </param>
515         /// <returns>
516         /// True if new token is available; false if end of stream reached.
517         /// </returns>
518         private static bool ReadNextToken(XmlReader xamlReader)
519         {
520             while (xamlReader.Read())
521             {
522                 Debug.Assert(xamlReader.ReadState == ReadState.Interactive, "Reader is expected to be in Interactive state (" + xamlReader.ReadState + ")");
523                 switch (xamlReader.NodeType)
524                 {
525                     case XmlNodeType.Element:
526                     case XmlNodeType.EndElement:
527                     case XmlNodeType.None:
528                     case XmlNodeType.CDATA:
529                     case XmlNodeType.Text:
530                     case XmlNodeType.SignificantWhitespace:
531                         return true;
532 
533                     case XmlNodeType.Whitespace:
534                         if (xamlReader.XmlSpace == XmlSpace.Preserve)
535                         {
536                             return true;
537                         }
538                         // ignore insignificant whitespace
539                         break;
540 
541                     case XmlNodeType.EndEntity:
542                     case XmlNodeType.EntityReference:
543                         //  Implement entity reading
544                         //xamlReader.ResolveEntity();
545                         //xamlReader.Read();
546                         //ReadChildNodes( parent, parentBaseUri, xamlReader, positionInfo);
547                         break; // for now we ignore entities as insignificant stuff
548 
549                     case XmlNodeType.Comment:
550                         return true;
551                     case XmlNodeType.ProcessingInstruction:
552                     case XmlNodeType.DocumentType:
553                     case XmlNodeType.XmlDeclaration:
554                     default:
555                         // Ignorable stuff
556                         break;
557                 }
558             }
559             return false;
560         }
561 
562         #endregion Private Methods
563 
564         // ---------------------------------------------------------------------
565         //
566         // Private Fields
567         //
568         // ---------------------------------------------------------------------
569 
570         #region Private Fields
571 
572         #endregion Private Fields
573     }
View Code
 1     class RtfToHtmlConverter
 2     {
 3         private const string FlowDocumentFormat = "<FlowDocument>{0}</FlowDocument>";
 4 
 5         public static string ConvertRtfToHtml(string rtfText)
 6         {
 7             var xamlText = string.Format(FlowDocumentFormat, ConvertRtfToXaml(rtfText));
 8 
 9             return HtmlFromXamlConverter.ConvertXamlToHtml(xamlText, false);
10         }
11         private static string ConvertRtfToXaml(string rtfText)
12         {
13             RichTextBox richTextBox = new RichTextBox();
14             if (string.IsNullOrEmpty(rtfText)) return "";
15 
16             var textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
17 
18             //Create a MemoryStream of the Rtf content
19 
20             using (var rtfMemoryStream = new MemoryStream())
21             {
22                 using (var rtfStreamWriter = new StreamWriter(rtfMemoryStream))
23                 {
24                     rtfStreamWriter.Write(rtfText);
25                     rtfStreamWriter.Flush();
26                     rtfMemoryStream.Seek(0, SeekOrigin.Begin);
27 
28                     //Load the MemoryStream into TextRange ranging from start to end of RichTextBox.
29                     textRange.Load(rtfMemoryStream, DataFormats.Rtf);
30                 }
31             }
32 
33             using (var rtfMemoryStream = new MemoryStream())
34             {
35 
36                 textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
37                 textRange.Save(rtfMemoryStream, DataFormats.Xaml);
38                 rtfMemoryStream.Seek(0, SeekOrigin.Begin);
39                 using (var rtfStreamReader = new StreamReader(rtfMemoryStream))
40                 {
41                     return rtfStreamReader.ReadToEnd();
42                 }
43             }
44 
45         }
46     }

这样的之后,就可以直接转化了

 

 

View Code
 1   /// <summary>
 2         /// 转化成html且保存到数据库
 3         /// </summary>
 4         /// <param name="QuestionId"></param>
 5         /// <param name="strCompress"></param>
 6         void ParseToHtml(int QuestionId, string strCompress)
 7         {
 8             string StrRely = RtfToHtmlConverter.ConvertRtfToHtml(strCompress);
 9 
10             foreach (var img in ListImage)
11             {
12                 StrRely = StrRely.Replace(img.RepTag, "<img src='" + string.Format("{0}{1}", Config.SiteUrl, img.File) + "' width='" + img.Width + "' height='" + img.Height + "'/>");
13 
14             }
15             DbExecute db = new DbExecute("CRM");
16             lbdata.Text = (Convert.ToInt32(lbdata.Text) + 1).ToString();
17             db.Parameter.Add("QuestionId", QuestionId);
18             db.Parameter.Add("QuestionContent", StrRely.ToLower());
19             db.NonQuery("QuestionParseUpdate");
20             DoEnd();
21         }

 

posted @ 2012-11-20 18:49  飞翔的小菜鸟  阅读(7704)  评论(3编辑  收藏  举报