Re: WmlDocument Usage

I am fairly new to using DocumentBuilder and I am putting together a solution that consumes an xml document (which contains paths to docx files).  The solution is intended to assemble a number of docx files into one resultant file.

When using the WmlDocument object that is returned from DocumentBuilder.BuildDocument(sources) how do I get a WordProcessingDocument object from the WmlDocument object?  

I need the WordProcessingDocument object so that I can interrogate and modify the document parts and then stream the final result back to the client caller.

If my question is not clear I can provide more detail.

Thanks

After a few more minutes of digging I solved my own problem.

The answer is to create an OpenXmlMemoryStreamObject and pass the WmlDocument into the constructor.  I then used the GetWordProcessingDocument() method to return the WordProcessingDocument, made some changes to the document and then created a new source using the GetModifiedWmlDocument() method.  Something like:

List<Source> mainSourceList = new List<Source>();
WmlDocument wmlDoc = DocumentBuilder.BuildDocument(sources);
WmlDocument clonedDoc = null;
OpenXmlMemoryStreamDocument streamDoc = null;

foreach (XElement recipient in recipientList)
{
    clonedDoc = new WmlDocument(wmlDoc);
    streamDoc = new OpenXmlMemoryStreamDocument(clonedDoc);

    ....

    WordprocessingDocument wpd = streamDoc.GetWordprocessingDocument();

     Paragraph p = new Paragraph(new Run(new Break() {Type = BreakValues.Page}));
                
     wpd.MainDocumentPart.Document.Body.Append(p);
     wpd.MainDocumentPart.Document.Save();

     mainSourceList.Add(new Source(streamDoc.GetModifiedWmlDocument(), true));
}

WmlDocument finalDocument = DocumentBuilder.BuildDocument(mainSourceList);

That is the general idea behind those classes, but it is better to create them in "using" statements like this example from the Markup Simplifier:

public static WmlDocument SimplifyMarkup(WmlDocument doc, SimplifyMarkupSettings settings)
{
    using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
    {
        using (WordprocessingDocument document = streamDoc.GetWordprocessingDocument())
        {
            SimplifyMarkup(document, settings);
        }
        return streamDoc.GetModifiedWmlDocument();
    }
}

It can be important for the WordprocessingDocument object to be disposed before calling GetModifiedWmlDocument. Then it is important that the OpenXmlMemoryStream object be disposed. The issues I have discovered may not come up in your example, but this arrangement is the best.