Save modified WordprocessingDocument to new file

问题:

I'm attempting to open a Word document, change some text and then save the changes to a new document. I can get the first bit done using the code below but I can't figure out how to save the changes to a NEW document (specifying the path and file name).

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using DocumentFormat.OpenXml.Packaging;
using System.IO;

namespace WordTest
{
class Program
{
    static void Main(string[] args)
    {
        string template = @"c:\data\hello.docx";
        string documentText;

        using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(template, true))
        {
            using (StreamReader reader = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
            {
                documentText = reader.ReadToEnd();
            }


            documentText = documentText.Replace("##Name##", "Paul");
            documentText = documentText.Replace("##Make##", "Samsung");

            using (StreamWriter writer = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
            {
                writer.Write(documentText);
            }
        }
      }
    }
}

I'm a complete beginner at this, so forgive the basic question!

回答1:

If you use a MemoryStream you can save the changes to a new file like this:

byte[] byteArray = File.ReadAllBytes("c:\\data\\hello.docx");
using (MemoryStream stream = new MemoryStream())
{
    stream.Write(byteArray, 0, (int)byteArray.Length);
    using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(stream, true))
    {
       // Do work here
    }
    // Save the file with the new name
    File.WriteAllBytes("C:\\data\\newFileName.docx", stream.ToArray()); 
}

回答2:

In Open XML SDK 2.5:

    File.Copy(originalFilePath, modifiedFilePath);

    using (var wordprocessingDocument = WordprocessingDocument.Open(modifiedFilePath, isEditable: true))
    {
        // Do changes here...
    }

wordprocessingDocument.AutoSave is true by default so Close and Dispose will save changes. wordprocessingDocument.Close is not needed explicitly because the using block will call it.

This approach doesn't require entire file content to be loaded into memory like in accepted answer. It isn't a problem for small files, but in my case I have to process more docx files with embedded xlsx and pdf content at the same time so the memory usage would be quite high.

回答3:

Simply copy the source file to the destination and make changes from there.

File.copy(source,destination);
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(destination, true))
    {
       \\Make changes to the document and save it.
       WordDoc.MainDocumentPart.Document.Save();
       WordDoc.Close();
    }

Hope this works.

回答4:

This approach allows you to buffer the "template" file without batching the whole thing into a byte[], perhaps allowing it to be less resource intensive.

var templatePath = @"c:\data\hello.docx";
var documentPath = @"c:\data\newFilename.docx";

using (var template = File.OpenRead(templatePath))
using (var documentStream = File.Open(documentPath, FileMode.OpenOrCreate))
{
    template.CopyTo(documentStream);

    using (var document = WordprocessingDocument.Open(documentStream, true))
    {
        //do your work here

        document.MainDocumentPart.Document.Save();
    }
}

回答5:

For me this worked fine:

// To search and replace content in a document part.
public static void SearchAndReplace(string document)
{
    using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(document, true))
    {
        string docText = null;
        using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
        {
            docText = sr.ReadToEnd();
        }

        Regex regexText = new Regex("Hello world!");
        docText = regexText.Replace(docText, "Hi Everyone!");

        using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
        {
            sw.Write(docText);
        }
    }
}