C# 写入正在读取的同一OpenXmlPart

是否有一种方法可以写入由

OpenXmlPartReader

读取的同一

OpenXmlPart

？我将使用阅读器检测内容，并可能使用

OpenXmlWriter

就地编写内容。以下是一个不起作用的示例：

var ms = new MemoryStream();
var doc = WordprocessingDocument.Create(ms, WordprocessingDocumentType.Document);

MainDocumentPart part = doc.AddMainDocumentPart();
part.Document = new Document(new Body(new Paragraph(), new Paragraph()));
doc.Save();

var stream = part.GetStream();
var reader = OpenXmlReader.Create(stream);
var writer = OpenXmlWriter.Create(stream);

reader.Read(); // read w:document
reader.ReadFirstChild(); // read w:body
reader.ReadFirstChild(); // read 1st w:p
writer.WriteElement(new Table()); // try to insert w:tbl

doc.Save(); // observe only the 2 paragraphs in the `w:body`.

---

看起来OpenXMLSDK在幕后使用了

XmlReader

和

XmlWriter

，因此可能有一种方法可以同步它们？

因此，似乎无法同步

OpenXmlReader

和

OpenXmlWriter

我最后做的是克隆原始文档，清除部分并有条件地写入它们，同时读取

OpenXmlReader

以下是我所做工作的简化模型：

var ms = new MemoryStream();
var inputDoc = WordprocessingDocument.Create(ms, WordprocessingDocumentType.Document);

MainDocumentPart inputMainPart = inputDoc.AddMainDocumentPart();
inputMainPart.Document = new Document(new Body(new Paragraph(), new Paragraph()));
input.Save();

var outputDoc = input.Clone();
outputDoc.RemovePart(outputDoc.MainDocumentPart);
var outputMainPart = outputDoc.AddMainDocumentPart();


var reader = OpenXmlReader.Create(inputMainPart);
var writer = OpenXmlWriter.Create(outputMainPart);
// write body/document

reader.Read(); // read w:document
reader.ReadFirstChild(); // read w:body
reader.ReadFirstChild(); // read 1st w:p

do {
    writer.WriteElement(new Table()); // insert w:tbl
    writer.WriteElement(reader.LoadCurrentElement());
} while(reader.ReadNextSibling());
doc.Save(); // observe only the 2 paragraphs in the `w:body`.