通用的FlashPaper支持Word/Excel/PDF,到時(shí)對(duì)于Silverlight的XPS的文檔支持問題比較多，本控件提供了一個(gè)可視化的XPS文檔展示，提供放大縮小/打印/搜索/分頁等功能，主要整合了開源的Document Toolkit。

1. 使用Document Toolkit，DocumentDataSource提供數(shù)據(jù)源，PageNvaigator提供分頁 ：

<doc:DocumentDataSource x:Name="dataSource"/>  
 
        <doc:DocumentViewer Grid.Row="1" x:Name="viewer" DocumentDataSource="{Binding ElementName=dataSource}" ViewMode="{Binding SelectedViewMode, ElementName=viewModePicker}" BorderBrush="#9fa9a4" BorderThickness="1"/>  
 
        <doc:PageNavigator x:Name="navigator" HorizontalAlignment="Center"   
                    PageCount="{Binding PageCount, ElementName=viewer}" 
                    PageIndex="{Binding PageIndex, ElementName=viewer, Mode=TwoWay}" 
                    />  
                  
        <doc:ViewModePicker Grid.Column="1" x:Name="viewModePicker" Visibility="Collapsed"/> 

2. WebPackageReader讀取本地xps或遠(yuǎn)程xps文件作為數(shù)據(jù)源

DotNetZipPackageReader 根據(jù)分頁延遲加載文檔

// loads the sample XPS document from the web  
            var url = string.Format("/DocumentService.ashx?id={0}", HtmlPage.Document.GetElementById("documentId").GetProperty("value"));  
            webClient.OpenReadAsync(new Uri(HtmlPage.Document.DocumentUri, url));   
            var reader = new WebPackageReader(new Uri(HtmlPage.Document.DocumentUri, url + "&part="));  
            this.dataSource.PackageReader = reader;  
            var xpsClient = new XpsClient();  
            xpsClient.LoadXpsDocumentAsync(reader); 

3. 服務(wù)端根據(jù)請(qǐng)求的文件ID和當(dāng)前頁碼返回指定的文件流

private void Response(HttpContext context, string xpsFileName, string partName)  
        {  
            using (FileStream stream = File.OpenRead(xpsFileName))  
            {  
                ZipFile file = new ZipFile(stream);  
                ZipEntry entry = file.GetEntry(partName);  
                if (entry != null)  
                {  
                    using (Stream entryStream = file.GetInputStream(entry))  
                    {  
                        // TODO: set mime-type as defined in XPS package  
                        context.Response.ContentType = "application/octet-stream";  
                        byte[] buffer = new byte[2 << 14];    // write blocks of 32768 bytes  
                        int read;  
                        while ((read = entryStream.Read(buffer, 0, buffer.Length)) > 0)  
                        {  
                            context.Response.OutputStream.Write(buffer, 0, read);  
                        }  
                    }  
                }  
                else 
                {  
                    // return 404 Not Found  
                    context.Response.StatusCode = (int)HttpStatusCode.NotFound;  
                }  
            }  
 
        } 

4. 源代碼下載

點(diǎn)擊

5. 在線預(yù)覽

http://rapidsl2.guozili.25u.com/  (admin/admin  點(diǎn)左邊菜單 控件展示 - 文檔查看器)

6. 截圖

原文鏈接：http://www.cnblogs.com/guozili/archive/2012/07/16/2593437.html

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