Convert Word of interop object to byte [] without saving physically

问题

I have an object created in memory using Microsoft.Office.Interop and Microsoft.Office.Word and with all created, paragraphs, tables and the like. I need this object to generate a content byte [] to feed one field of the same type in a table. The problem that I can not save it in any way physically with a oDoc.Save ("path") in order to use a FileStream and solve my problem.

Have tried several solutions and how to use the clipboard, and did not work. Any solution?

回答1:

Do you really have to use the Microsoft.Office.Interop and Microsoft.Office.Word?

If it is not really necessary, you could use the OpenXML SDK libraries for manipulating the content of the WordDocument.

OpenXML SDK contains a class WordprocessingDocument that can manipulate a memory stream containing a WordDocument content. And MemoryStream can be converted using ToArray() to a byte[].

As a code sample:

byte[] templateContent = File.ReadAllBytes(templateFile);

MemoryStream stream = new MemoryStream();
stream.Write(templateContent, 0, templateContent.Length);

WordprocessingDocument wordDoc = WordprocessingDocument.Open(stream, true);

// When done
byte[] contentOfWordFile = stream.toArray();

回答2:

Sounds like this is a dynamically-created Word document.

Since you have the document in the form of a Document object, you should be able to get its string of XML, then bytes, by doing this:

Microsoft.Office.Interop.Word.Document d = new Microsoft.Office.Interop.Word.Document();

// All of your building of the document was here
// The object must be updated with content

string docText = d.WordOpenXML;  // this assumes content is here
byte[] bytes = Encoding.UTF8.GetBytes(docText);

I don't think that saving the object to the file system first is required, since you already have the object you have built all dynamically, in memory. It should just be a matter of accessing its WordOpenXML.

If you were grabbing the file from the file system, it would look pretty much the same, except for how the document is opened first:

string sourceFilePath = @"C:\test.docx";
Microsoft.Office.Interop.Word.Application wordApp = new Microsoft.Office.Interop.Word.Application();
var document = wordApp.Documents.Open(sourceFilePath);
string docText = document.WordOpenXML;
byte[] bytes = Encoding.UTF8.GetBytes(docText);

If you ever want to download these bytes back into a document, you'd need to do this:

string documentPath = @"C:\test.docx"; // can be modified with dynamic paths, file name from database, etc.
byte[] contentBytes = null;
// … Fill contentBytes from the database, then...

// Create the Word document using the path
using (WordprocessingDocument wordDoc = WordprocessingDocument.Create(documentPath, true))
{
    // This should get you the XML string...
    string docText = System.Text.Encoding.UTF8.GetString(contentBytes);

    // Then we write it out...
    using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
    {                    
        sw.Write(docText);
    } 
}

See How can I form a Word document using stream of bytes for more information.

来源：https://stackoverflow.com/questions/6023272/convert-word-of-interop-object-to-byte-without-saving-physically

标签

interop

ms-word

byte