The WordprocessingML Class

Article
12/13/2007

This page presents a refinement of the OpenXmlDocument class, which is a new class (WordprocessingML) that derives from the OpenXmlDocument class. The WordprocessingML class adds additional functionality that is specific to WordprocessingML documents, including:

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Blog TOCSome constant strings that contain the DocumentRelationshipType, the StylesRelationshipType, and the CommentsRelationshipType.

· An XNamespace object that contain the main XML namespace for WordprocessingML documents.

· Initialized properties that find the main DocumentRelationship object, the StylesRelationship object, and the CommentsRelationship object. The Relationship class is declared in the following source code, and represents a node in the object graph that contains an entire OpenXML document.

· A DefaultStyle method that queries for the default style of the document.

· A.Paragraphs method that enumerates all paragraphs in the document. The Paragraph class contains the XElement node of the paragraph for further querying if necessary, the style of the paragraph, the text of the paragraph, and a collection of comments for the paragraph. It needs to contain a collection because a paragraph can have more than one comment.

Following is a simple example that shows the use of the WordprocessingML class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Microsoft.Examples.LtxOpenXml;

class Program
{
public static void Main(string[] args)
{
string filename = "Test.docx";

using (WordprocessingML doc = new WordprocessingML(filename))
{
foreach (var p in doc.Paragraphs())
{
Console.WriteLine("Style: {0} Text: >{1}<",
p.StyleName.PadRight(16), p.Text);
if (p.Comments != null)
foreach (var c in p.Comments)
{
Console.WriteLine(" Id: {0}", c.Id);
Console.WriteLine(" Author: {0}", c.Author);
Console.WriteLine(" Text: >{0}<", c.Text);
}
}
}
}
}

This is the complete listing of both the OpenXmlDocument class and the WordprocessingML class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.IO;
using System.IO.Packaging;

namespace Microsoft.Examples.LtxOpenXml
{
class Comment
{
public int Id { get; set; }
public string Text { get; set; }
public string Author { get; set; }
}

class Paragraph
{
public XElement ParagraphElement { get; set; }
public string StyleName { get; set; }
public string Text { get; set; }
public IEnumerable<Comment> Comments { get; set; }
}

class Relationship
{
public string Id { get; set; }
public string RelationshipType { get; set; }
public string ContentType { get; set; }
public System.IO.Packaging.TargetMode TargetMode { get; set; }
public Uri SourceUri { get; set; }
public Uri TargetUri { get; set; }
public PackagePart PackagePart { get; set; }
public XDocument XDocument { get; set; }
public List<Relationship> Relationships { get; set; }
}

class OpenXmlDocument : IDisposable
{
// public
public string Name { get; set; }
public Package Package { get; set; }
public List<Relationship> Relationships { get; set; }

// private
private bool disposed = false;

public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}

private void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
Package.Close();
disposed = true;
}
}

private XDocument LoadXDocument(string relationshipType,
PackagePart part)
{
if (XmlContentTypes.Contains(part.ContentType))
return XDocument.Load(XmlReader.Create(part.GetStream()));
else
return null;
}

private List<Relationship> CreateRelationshipList(
PackageRelationshipCollection prc)
{
return (
from pr in prc
where pr.TargetMode == TargetMode.Internal
let uri = PackUriHelper.ResolvePartUri(
new Uri(pr.SourceUri.ToString(), UriKind.Relative),
pr.TargetUri)
let part = pr.Package.GetPart(uri)
let contentType = part.ContentType
let xdoc = LoadXDocument(pr.RelationshipType, part)
let partRelationshipList =
CreateRelationshipList(part.GetRelationships())
select new Relationship
{
Id = pr.Id,
RelationshipType = pr.RelationshipType,
TargetMode = pr.TargetMode,
ContentType = part.ContentType,
SourceUri = pr.SourceUri,
TargetUri = pr.TargetUri,
PackagePart = part,
XDocument = xdoc,
Relationships = partRelationshipList
}
).ToList();
}

public OpenXmlDocument(string name)
{
Name = name;
Package = Package.Open(Name, FileMode.Open, FileAccess.Read);
Relationships = CreateRelationshipList(
Package.GetRelationships());
}

public HashSet<string> XmlContentTypes = new HashSet<string>
{
"application/vnd.openxmlformats-officedocument.custom-properties+xml",
"application/vnd.openxmlformats-officedocument.customXmlProperties+xml",
"application/vnd.openxmlformats-officedocument.drawing+xml",
"application/vnd.openxmlformats-officedocument.drawingml.chart+xml",
"application/vnd.openxmlformats-officedocument.drawingml.chartshapes+xml",
"application/vnd.openxmlformats-officedocument.drawingml.diagramColors+xml",
"application/vnd.openxmlformats-officedocument.drawingml.diagramData+xml",
"application/vnd.openxmlformats-officedocument.drawingml.diagramLayout+xml",
"application/vnd.openxmlformats-officedocument.drawingml.diagramStyle+xml",
"application/vnd.openxmlformats-officedocument.extended-properties+xml",
"application/vnd.openxmlformats-officedocument.presentationml.commentAuthors+xml",
"application/vnd.openxmlformats-officedocument.presentationml.comments+xml",
"application/vnd.openxmlformats-officedocument.presentationml.handoutMaster+xml",
"application/vnd.openxmlformats-officedocument.presentationml.notesMaster+xml",
"application/vnd.openxmlformats-officedocument.presentationml.notesSlide+xml",
"application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml",
"application/vnd.openxmlformats-officedocument.presentationml.presentationProperties+xml",
"application/vnd.openxmlformats-officedocument.presentationml.slide+xml",
"application/vnd.openxmlformats-officedocument.presentationml.slideLayout+xml",
"application/vnd.openxmlformats-officedocument.presentationml.slideMaster+xml",
"application/vnd.openxmlformats-officedocument.presentationml.slideshow.main+xml",
"application/vnd.openxmlformats-officedocument.presentationml.slideUpdateInfo+xml",
"application/vnd.openxmlformats-officedocument.presentationml.tableStyles+xml",
"application/vnd.openxmlformats-officedocument.presentationml.tags+xml",
"application/vnd.openxmlformats-officedocument.presentationml.template.main+xml",
"application/vnd.openxmlformats-officedocument.presentationml.viewProps+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.calcChain+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.connections+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.externalLink+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheDefinition+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotCacheRecords+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.pivotTable+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.queryTable+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionHeaders+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.revisionLog+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheetMetadata+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.table+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.tableSingleCells+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.userNames+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.volatileDependencies+xml",
"application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml",
"application/vnd.openxmlformats-officedocument.theme+xml",
"application/vnd.openxmlformats-officedocument.themeOverride+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.comments+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.document.glossary+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.endnotes+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.fontTable+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.footer+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.footnotes+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.header+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.numbering+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.settings+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.styles+xml",
"application/vnd.openxmlformats-officedocument.wordprocessingml.webSettings+xml",
"application/vnd.openxmlformats-package.core-properties+xml",
"application/vnd.openxmlformats-package.digital-signature-xmlsignature+xml",
"application/xml"
};
}

class WordprocessingML : OpenXmlDocument
{
public const string DocumentRelationshipType =
"https://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument";
public const string StylesRelationshipType =
"https://schemas.openxmlformats.org/officeDocument/2006/relationships/styles";
public const string CommentsRelationshipType =
"https://schemas.openxmlformats.org/officeDocument/2006/relationships/comments";

public Relationship DocumentRelationship { get; set; }
public Relationship StylesRelationship { get; set; }
public Relationship CommentsRelationship { get; set; }
public XNamespace WordprocessingMLNamespace = "https://schemas.openxmlformats.org/wordprocessingml/2006/main";

public WordprocessingML(string name)
: base(name)
{
DocumentRelationship =
(
from dr in this.Relationships
where dr.RelationshipType == DocumentRelationshipType
select dr
).FirstOrDefault();

StylesRelationship =
(
from sr in this.DocumentRelationship.Relationships
where sr.RelationshipType == StylesRelationshipType
select sr
).FirstOrDefault();

CommentsRelationship =
(
&nb

The WordprocessingML Class

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