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Split Documents

  • 4 min to read

The RichEditDocumentServer allows you to split documents into separate files. Follow the steps below to complete the task:

Obtain a Specific Document Part

You can use the following approaches to get a specific document part:

  • Section - Use the Section.Range property to access the required section's range.
  • Page - call the DocumentLayout.GetPage method to iterate through the document pages. The LayoutPage.MainContentRange property returns the obtained page's range as a FixedRange object. Call the SubDocument.CreateRange method to convert the retrieved FixedRange to DocumentRange.

    
    int pageCount = server.DocumentLayout.GetPageCount();
    for (int i = 0; i < pageCount; i++)
    {
        LayoutPage layoutPage = server.DocumentLayout.GetPage(i);
        DocumentRange mainBodyRange = sourceServer.Document.CreateRange(layoutPage.MainContentRange.Start, layoutPage.MainContentRange.Length);                                
    }
    
  • Paragraphs with Headings (if Heading1, Heading2, etc. style is applied to the headings) – Applying the Heading style to the paragraph changes its outline level. Find all paragraphs with the required Paragraph.OutlineLevel property value. Then obtain the range located between these paragraphs (including the paragraph with the heading).

    
    Document document = server.Document;
    List<Paragraph> paragraphs = document.Paragraphs.Where(paragraph => paragraph.OutlineLevel == 1).ToList();
    for (int i = 0; i < paragraphs.Count; i++)
      {     
         DocumentRange range;
         DocumentPosition startPos = paragraphs[i].Range.Start;
         if (i == paragraphs.Count - 1)
              range = document.CreateRange(startPos, document.Range.End.ToInt() - startPos.ToInt());
         else
              range = document.CreateRange(startPos, paragraphs[i + 1].Range.Start.ToInt() - startPos.ToInt());        
      }
    

You can get text from the DocumentRange instance. The table below shows the APIs used to retrieve and insert format-specific content:

Format

Retrieve

Insert

Plain Text

SubDocument.GetText

SubDocument.AppendText - Appends the specified text.

SubDocument.AppendSingleLineText - Appends text as a single line.

SubDocument.InsertText - Inserts the specified text at the specified position.

SubDocument.InsertSingleLineText - Inserts a single line of text (text without line breaks) at the specified position.

Rich Text Format

SubDocument.GetRtfText

SubDocument.AppendRtfText - Appends formatted text.

SubDocument.InsertRtfText - Inserts formatted text into the specified position.

HTML

SubDocument.GetHtmlText

SubDocument.AppendHtmlText - Appends HTML formatted text.

SubDocument.InsertHtmlText - Inserts the specified HTML text into the specified position.

MHT

SubDocument.GetMhtText

WordML

SubDocument.GetWordMLText

OpenXML array

SubDocument.GetOpenXmlBytes

Save Document Parts as Separate Files

Call the SubDocument.AppendDocumentContent method to insert the retrieved range to the temporary RichEditDocumentServer instance.

Use the Document.SaveDocument method to save the result. Call the RichEditDocumentServer.ExportToPdf method to export files in PDF format.

The code sample below saves each document page as a separate RTF file.


int pageCount = sourceServer.DocumentLayout.GetPageCount();
for (int i = 0; i < pageCount; i++)
    {
      DevExpress.XtraRichEdit.API.Layout.LayoutPage layoutPage = sourceServer.DocumentLayout.GetPage(i);
      DocumentRange mainBodyRange = sourceServer.Document.CreateRange(layoutPage.MainContentRange.Start, layoutPage.MainContentRange.Length);
      using (RichEditDocumentServer tempServer = new RichEditDocumentServer())
                {
                    tempServer.Document.AppendDocumentContent(mainBodyRange);
                    //Delete last empty paragraph
                    tempServer.Document.Delete(tempServer.Document.Paragraphs.First().Range);
                    //Save the result
                    tempServer.SaveDocument(String.Format("doc{0}.rtf", i), DocumentFormat.Rtf);  
                }
    }

Insert a Document Part into Another Document

Call the SubDocument.InsertDocumentContent method to insert the obtained DocumentRange in the given position in a document.

Save the result by calling the Document.SaveDocument method. Use the RichEditDocumentServer.ExportToPdf method to export the document to PDF format.

The code sample below inserts the source document's second paragraph in another document.


var server = new RichEditDocumentServer();
server.LoadDocument("Documents//Hans in luck.docx", DocumentFormat.OpenXml);
DocumentRange retrieveRange = server.Document.Paragraphs[2].Range;

var server1 = new RichEditDocumentServer();
server1.Document.InsertDocumentContent(server1.Document.Range.Start, retrieveRange);
server1.SaveDocument("secondParagraph.docx", DocumentFormat.OpenXml);