1   private void Button_Click(object sender, RoutedEventArgs e)
 2         {
 3                MergeDocument();
 4
 5         }
 6
 7         //完全不使用类，函数方式
 8         public void MergeDocument()
 9         {
10
11             string fristFile = "test1.xps";
12             string secoFile = "test2.xps";
13
14             string newFile = "xpsShow.xps";
15             File.Delete(newFile);
16
17
18             FixedDocumentSequence newFds = new FixedDocumentSequence();//创建一个新的文档结构
19
20             DocumentReference newDocRef = AddPage(fristFile);//加入第一个文件
21             newFds.References.Add(newDocRef);
22
23             newDocRef = AddPage(secoFile);
24             newFds.References.Add(newDocRef);//加入第二个文件
25
26             //xps写入新文件
27             XpsDocument NewXpsDocument = new XpsDocument(newFile, System.IO.FileAccess.ReadWrite);
28             XpsDocumentWriter xpsDocumentWriter = XpsDocument.CreateXpsDocumentWriter(NewXpsDocument);
29             xpsDocumentWriter.Write(newFds);
30             NewXpsDocument.Close();
31
32             //读取并显示
33             XpsDocument xpsnewDocument = new XpsDocument(newFile, FileAccess.Read);
34             docView.Document = xpsnewDocument.GetFixedDocumentSequence();
35         }
36
37         public DocumentReference AddPage(string fileName)
38         {
39             DocumentReference newDocRef = new DocumentReference();
40             FixedDocument newFd = new FixedDocument();
41
42             XpsDocument xpsDocument = new XpsDocument(fileName, FileAccess.Read);
43             FixedDocumentSequence docSeq = xpsDocument.GetFixedDocumentSequence();
44
45             foreach (DocumentReference docRef in docSeq.References)
46             {
47                 FixedDocument fd = docRef.GetDocument(false);
48
49                 foreach (PageContent oldPC in fd.Pages)
50                 {
51                     Uri uSource = oldPC.Source;//读取源地址
52                     Uri uBase = (oldPC as IUriContext).BaseUri;//读取目标页面地址
53
54                     PageContent newPageContent = new PageContent();
55                     newPageContent.GetPageRoot(false);//这个地方应当是把文档解压成一个包放到内存中我们再去读取
56                     newPageContent.Source = uSource;
57                     (newPageContent as IUriContext).BaseUri = uBase;
58                     newFd.Pages.Add(newPageContent);//将新文档追加到新的documentRefences中
59                 }
60             }
61             newDocRef.SetDocument(newFd);
62             xpsDocument.Close();
63             return newDocRef;
64         }