How does WPF RichTextBox flowdocment implement automatic paging? Two

Use the OPENXML SDK to read content by page:

The following content uses wpf+richtextbox+flowdocment display, the test document total 3 pages of content, the picture shows is obtains the first page content, after enclosing the code, as follows:

1 /// <summary>2         ///load Word by page3         /// </summary>4         /// <param name= "Flowdoc" ></param>5         /// <param name= "filename" ></param>6         /// <param name= "page" ></param>7          Public Static voidLOADWORDML ( ThisFlowDocument Flowdoc,stringFileNameintpage)8         {9XElement WordDoc =NULL;Ten             Try One             { APackage package =package.open (filename); -Uri Documenturi =NewUri ("/word/document.xml", urikind.relative); -PackagePart Documentpart =Package . GetPart (Documenturi); theWordDoc = Xelement.load (NewStreamReader (Documentpart.getstream ())); -             } -             Catch(Exception) -             { +FLOWDOC.BLOCKS.ADD (NewSystem.Windows.Documents.Paragraph (NewSystem.Windows.Documents.Run ("File not found or not in correct format (Word)"))); -                 return; +             } A  atXNamespace W ="Http://schemas.openxmlformats.org/wordprocessingml/2006/main"; -  -             varParagraphs = fromPinchWorddoc.descendants (W +"P") -                              Selectp; -             intPagecount=0; -             foreach(varPinchparagraphs) in             { -                 varPagetag = fromSinchP.descendants (W +"Lastrenderedpagebreak")Selects; to                 if(Pagetag.count () >0) +                 {  -pagecount++; the                     if(PageCount = =page) *                     { $                          Break;Panax Notoginseng                     } -                 } the                 varstyle = fromSinchP.descendants (W +"PPr") +                             Selects; A  the                 varFont = ( fromFinchStyle. Descendants (W +"rFonts") +                             SelectF.firstattribute). FirstOrDefault (); -                 varSize = ( fromSinchStyle. Descendants (W +"sz") $                             SelectS.firstattribute). FirstOrDefault (); $  -System.Windows.Documents.Paragraph par =NewSystem.Windows.Documents.Paragraph (); -System.Windows.Documents.Run r =NewSystem.Windows.Documents.Run (p.value); the                 if(Font! =NULL) -                 {WuyiFontfamilyconverter converter =NewFontfamilyconverter (); ther.fontfamily =(System.Windows.Media.FontFamily) converter. ConvertFrom (font. Value); -                 } Wu                 if(Size! =NULL) -                 { AboutR.fontsize =Double. Parse (size. Value); $                 } - par. Inlines.add (r); -  - flowDoc.Blocks.Add (PAR); A             } +}

How does WPF RichTextBox flowdocment implement automatic paging? Two