Programmatically save open document in MS Word Add-In

2
votes

I'm trying to create an add-in in C# for MS Word 2010 that will add a new ribbon and a click event-handler. This click event-handler should save the active file in c:\temp, for example. And then I need to load the file content into a byte array.

Probably something like this:

public void ClickEventHandler(Office.IRibbonControl control)
{
    string fileLocation = "c:\temp\test.docx";
    Word.Document document = this.Document;
    document.SaveAs(fileLocation);
    byte[] byteArray = File.ReadAllBytes(fileLocation);
}

The point is, this is pseudo-code and I don't know how to load an active document into a byte array. If there is a way without saving the document it would be even better.

And a query if the active file is a docx (and not a doc file) would be nice as well.

2
c#ms-wordms-officeoffice-addins
What exactly are you trying to accomplish, by the way? Welcome to StackOverlow! :) – Jeff B
Well thank you. i'm new into programming and i'm just testing. i try to convert a docx document into a xhtml file and i'm using this article: msdn.microsoft.com/en-us/library/ff628051%28v=office.14%29.aspx and well, it's working but i would like to implement this feature in an word 2010 add-in. problem is, i can't convert a document, which is currently opened in word. – user3120053
I'm not sure if what you want to do is possible. See my updated answer. – Jeff B

2 Answers

2
votes
Word.Document document = Globals.ThisAddIn.Application.ActiveDocument;     
document.SaveAs2(goldenpath + "\\" + name + "." + id + ".docx");
document.Close();
0
votes

I use this generic function in my program to serialize arbitrary objects to a byte array:

private byte[] MakeByteSize<U>(U obj)
{
  if (obj == null) return null;

  var bf = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
  var ms = new System.IO.MemoryStream();
  bf.Serialize(ms, obj);

  return ms.ToArray();
}

Edit:

After reading your additional content, I'm confident that serializing the Word.Document object won't get you what you need, since the byte array representing that object in the program (which is probably a wrapper around some COM interop) won't be the same as the byte array representing the information stored in the file about the document.

Looking at the MSDN article you referenced, it looks like what we really need is a WordprocessingDoc instance representing the document that we can pass to the HtmlConverter class. So I think the question you really want to ask is "How can I create a DocumentFormat.OpenXml.Packaging.WordprocessingDocument from an open document without saving the file first?"

Unforunately, I'm not sure that's possible since I'm not really spotting any methods on that class that would do that.

On the .doc vs .docx issue, the Open XML SDK for Microsoft Office says that it works with documentat that adhere to the "Office Open XML File Formats Specification" which I believe means it will only work with the .docx file format. You might have to try a different route on this, like exporting to PDF perhaps. Good luck!