首先看一段代碼，這段代碼意圖從docSource中獲取第一個表格，並插入docTarget的末尾：
1 var table = (Table)docSource.GetChild(NodeType.Table, 0, true); 2 docTarget.FirstSection.Body.ChildNodes.Add(table);
這段代碼會拋出異常：“The newChild was created from a different document than the one that created this node.”，這是什麼原因呢？
原因是，對於Aspose.Words的Node對象，它的一系列樣式和格式的控制，取決於它所在的DocumentBase父對象，這也是很多Aspose.Words對象聲明時，必須指定它的DocumentBase參數，比如聲明一個Table，應該如下：
1 Document doc=new Document(); 2 Table table=new Table(doc);
那麼，我們有沒有辦法添加另一個文檔中的對象呢？有，必須通過Document.ImportNode方法或者使用NodeImporter對象。
這兩種方法思路都是將源文檔中的Node導入到目標文檔中，再追加Node到合適的位置。
Document.ImportNode
1 /// <summary>
2 /// A manual implementation of the Document.AppendDocument function which shows the general
3 /// steps of how a document is appended to another.
4 /// </summary>
5 /// <param name="dstDoc">The destination document where to append to.</param>
6 /// <param name="srcDoc">The source document.</param>
7 /// <param name="mode">The import mode to use when importing content from another document.</param>
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 copy
19 // 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 }
參考文檔：
http://www.aspose.com/docs/display/wordsnet/Aspose.Words.DocumentBase.ImportNode+Overload_1
不懂
看看這個鏈接，有你需要的內容：
blog.csdn.net/...164947
