如何添加另一个WORD文档中的Node对象

首先看一段代码，这段代码意图从docSource中获取第一个表格，并插入docTarget的末尾：
1 var table = (Table)docSource.GetChild(NodeType.Table, 0, true);2 docTarget.FirstSection.Body.ChildNodes.Add(table);

这段代码会抛出异常：“The newChild was created from a different document than the one that created this node.”，这是什么原因呢？
原因是，对于Aspose.Words的Node对象，它的一系列样式和格式的控制，取决于它所在的DocumentBase父对象，这也是很多Aspose.Words对象声明时，必须指定它的DocumentBase参数，比如声明一个Table，应该如下：
1 Document doc=new Document();2 Table table=new Table(doc);

那么，我们有没有办法添加另一个文档中的对象呢？有，必须通过Document.ImportNode方法或者使用NodeImporter对象。
这两种方法思路都是将源文档中的Node导入到目标文档中，再追加Node到合适的位置。
Document.ImportNode
1 ///

2 /// A manual implementation of the Document.AppendDocument function which shows the general 3 /// steps of how a document is appended to another. 4 ///

5 /// The destination document where to append to. 6 /// The source document. 7 /// The import mode to use when importing content from another document. 8 public void AppendDocument(Document dstDoc, Document srcDoc, ImportFormatMode mode) 9 {10 // Loop through all sections in the source document. 11 // Section nodes are immediate children of the Document node so we can just enumerate the Document.12 foreach (Section srcSection in srcDoc)13 {14 // Because we are copying a section from one document to another, 15 // it is required to import the Section node into the destination document.16 // This adjusts any document-specific references to styles, lists, etc.17 //18 // Importing a node creates a copy of the original node, but the copy19 // is ready to be inserted into the destination document.20 Node dstSection = dstDoc.ImportNode(srcSection, true, mode);21 22 // Now the new section node can be appended to the destination document.23 dstDoc.AppendChild(dstSection);24 }25 }

NodeImporter
1 public static Document GenerateDocument(Document srcDoc, ArrayList nodes) 2 { 3 // Create a blank document. 4 Document dstDoc = new Document(); 5 // Remove the first paragraph from the empty document. 6 dstDoc.FirstSection.Body.RemoveAllChildren(); 7 8 // Import each node from the list into the new document. Keep the original formatting of the node. 9 NodeImporter importer = new NodeImporter(srcDoc, dstDoc, ImportFormatMode.KeepSourceFormatting);10 11 foreach (Node node in nodes)12 {13 Node importNode = importer.ImportNode(node, true);14 dstDoc.FirstSection.Body.AppendChild(importNode);15 }16 17 // Return the generated document.18 return dstDoc;19 }