使用WordProcessingDocument合并Word文档

Question

我目前正在开发一个程序，在该程序中，用户应该能够将多个Word文档合并为一个文档，而不会丢失任何格式、页眉等。文档应该简单地一个接一个地堆叠起来，不会有任何更改。

这是我当前的代码：

public virtual Byte[] MergeWordFiles(IEnumerable<SendData> sourceFiles)
{
int f = 0;
// If only one Word document then skip merge.
if (sourceFiles.Count() == 1)
{
return sourceFiles.First().File;
}
else
{
MemoryStream destinationFile = new MemoryStream();
// Add first file
var firstFile = sourceFiles.First().File;
destinationFile.Write(firstFile, 0, firstFile.Length);
destinationFile.Position = 0;
int pointer = 1;
byte[] ret;
// Add the rest of the files
try
{
using (WordprocessingDocument mainDocument = WordprocessingDocument.Open(destinationFile, true))
{
XElement newBody = XElement.Parse(mainDocument.MainDocumentPart.Document.Body.OuterXml);
for (pointer = 1; pointer < sourceFiles.Count(); pointer++)
{
WordprocessingDocument tempDocument = WordprocessingDocument.Open(new MemoryStream(sourceFiles.ElementAt(pointer).File), true);
XElement tempBody = XElement.Parse(tempDocument.MainDocumentPart.Document.Body.OuterXml);
newBody.Add(XElement.Parse(new DocumentFormat.OpenXml.Wordprocessing.Paragraph(new Run(new Break { Type = BreakValues.Page })).OuterXml));
newBody.Add(tempBody);
mainDocument.MainDocumentPart.Document.Body = new Body(newBody.ToString());
mainDocument.MainDocumentPart.Document.Save();
mainDocument.Package.Flush();
}
}
}
catch (OpenXmlPackageException oxmle)
{
throw new Exception(string.Format(CultureInfo.CurrentCulture, "Error while merging files. Document index {0}", pointer), oxmle);
}
catch (Exception e)
{
throw new Exception(string.Format(CultureInfo.CurrentCulture, "Error while merging files. Document index {0}", pointer), e);
}
finally
{
ret = destinationFile.ToArray();
destinationFile.Close();
destinationFile.Dispose();
}
return ret;
}
}

这里的问题是，格式是从第一个文档复制的，并应用于所有其他文档，这意味着例如，第二个文档中的不同页眉将被忽略。如何防止这种情况发生？

我一直在寻找使用SectionMarkValues.NextPage和altChunk将文档分解为多个部分。

后者的问题是altChunk似乎无法将MemoryStream处理为其"FeedData"方法。

Answer 1

DocIO是一个.NET库，可以读取、写入、合并和呈现Word 2003/2007/2010/2013/2016文件。如果您符合条件，整个控制套件可以通过社区许可证计划免费提供(商业应用程序也是如此)。社区许可证是完整的产品，没有任何限制或水印。

第一步：创建控制台应用程序
第二步:添加对Syncfusion.DocIO.Base、Syncfusion.Compression.Base和Syncfusion.OfficeChart.Base的引用；您也可以使用NuGet将这些引用添加到您的项目中
步骤3：复制&粘贴以下代码片段。

此代码片段将根据您的要求生成文档；每个输入的Word文档都将与其原始格式、样式和页眉/页脚合并。

using Syncfusion.DocIO.DLS;
using Syncfusion.DocIO;
using System.IO;
namespace DocIO_MergeDocument
{
class Program
{
static void Main(string[] args)
{
//Boolean to indicate whether any of the input document has different odd and even headers as true
bool isDifferentOddAndEvenPagesEnabled = false;
// Creating a new document.
using (WordDocument mergedDocument = new WordDocument())
{
//Get the files from input directory
DirectoryInfo dirInfo = new DirectoryInfo(System.Environment.CurrentDirectory + @"....Data");
FileInfo[] fileInfo = dirInfo.GetFiles();
for (int i = 0; i < fileInfo.Length; i++)
{
if (fileInfo[i].Extension == ".doc" || fileInfo[i].Extension == ".docx")
{
using (WordDocument sourceDocument = new WordDocument(fileInfo[i].FullName))
{
//Check whether the document has different odd and even header/footer
if (!isDifferentOddAndEvenPagesEnabled)
{
foreach (WSection section in sourceDocument.Sections)
{
isDifferentOddAndEvenPagesEnabled = section.PageSetup.DifferentOddAndEvenPages;
if (isDifferentOddAndEvenPagesEnabled)
break;
}
}
//Sets the breakcode of First section of source document as NoBreak to avoid imported from a new page
sourceDocument.Sections[0].BreakCode = SectionBreakCode.EvenPage;
//Imports the contents of source document at the end of merged document
mergedDocument.ImportContent(sourceDocument, ImportOptions.KeepSourceFormatting);
}
}
}
//if any of the input document has different odd and even headers as true then
//Copy the content of the odd header/foort and add the copied content into the even header/footer
if (isDifferentOddAndEvenPagesEnabled)
{
foreach (WSection section in mergedDocument.Sections)
{
section.PageSetup.DifferentOddAndEvenPages = true;
if (section.HeadersFooters.OddHeader.Count > 0 && section.HeadersFooters.EvenHeader.Count == 0)
{
for (int i = 0; i < section.HeadersFooters.OddHeader.Count; i++)
section.HeadersFooters.EvenHeader.ChildEntities.Add(section.HeadersFooters.OddHeader.ChildEntities[i].Clone());
}
if (section.HeadersFooters.OddFooter.Count > 0 && section.HeadersFooters.EvenFooter.Count == 0)
{
for (int i = 0; i < section.HeadersFooters.OddFooter.Count; i++)
section.HeadersFooters.EvenFooter.ChildEntities.Add(section.HeadersFooters.OddFooter.ChildEntities[i].Clone());
}
}
}
//If there is no document to merge then add empty section with empty paragraph
if (mergedDocument.Sections.Count == 0)
mergedDocument.EnsureMinimal();
//Saves the document in the given name and format
mergedDocument.Save("result.docx", FormatType.Docx);
}
}
}
}

可下载演示

注意：为奇数页和偶数页应用不同的页眉/页脚。每个输入文档对此属性可以具有不同的值。如果输入文档的奇数和偶数页眉/页脚与true不同将影响结果中页眉/页脚的视觉外观文件因此，如果任何输入文档具有不同的奇数和甚至页眉/页脚，则生成的Word文档替换为奇数页眉/页脚内容。

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注意：我为Syncfusion 工作