从Web应用程序生成XPS文档

Question

我试图从Web应用程序生成多页XPS文档，并尝试通过点击按钮进行流式传输。

公共类的Class1 {

protected void btnGenerateLetter_OnClick(object sender, EventArgs e) 
{ 
    try 
    { 
     string sid = Request.Form["id"]; 
     byte[] bytes = FlowDocumentToXPS(GenerateLetter(), 640, 800); 
     Response.Clear(); 
     Response.ContentType = "application/vnd.ms-xpsdocument"; 
     Response.AddHeader("Content-Disposition", "attachment; filename=document.xps"); 
     Response.OutputStream.Write(bytes, 0, bytes.Length); 
     Response.Flush(); 
     Response.Close(); 
    } 
    catch (Exception ex) 
    { 
    } 

} 

private FlowDocument GenerateLetter() 
{ 
    FlowDocument flowDocument = new FlowDocument(); 

    string Header = "Test Header Message"; 
    string Body = "Content goes here"; 
    string Footer = "Footer Text"; 

    for (int i = 0; i < 3; i++) 
    { 
     Paragraph header = new Paragraph(); 
     header.Margin = new System.Windows.Thickness(250, 100, 250, 10); 
     header.BreakPageBefore = true; 

     header.Inlines.Add(new Run(Header)); 
     header.Inlines.Add(new LineBreak()); 
     header.Inlines.Add(new LineBreak()); 
     header.Inlines.Add(new LineBreak()); 

     Paragraph body = new Paragraph(); 
     body.Inlines.Add(new Run(Body)); 
     body.Inlines.Add(new LineBreak()); 
     body.Inlines.Add(new LineBreak()); 

     Paragraph footer = new Paragraph(); 
     footer.Inlines.Add(new Run(Footer)); 

     flowDocument.Blocks.Add(header); 
     flowDocument.Blocks.Add(body); 
     flowDocument.Blocks.Add(footer); 
    } 
    return flowDocument; 
} 

public static byte[] FlowDocumentToXPS(FlowDocument flowDocument, int width, int height) 
{ 
    MemoryStream stream = new MemoryStream(); 
    // create a package 
    using (Package package = Package.Open(stream, FileMode.CreateNew)) 
    { 
     // create an empty XPS document 
     using (XpsDocument xpsDoc = new XpsDocument(package, CompressionOption.NotCompressed)) 
     { 
      // create a serialization manager 
      XpsSerializationManager rsm = new XpsSerializationManager(new XpsPackagingPolicy(xpsDoc), false); 
      // retrieve document paginator 
      DocumentPaginator paginator = ((IDocumentPaginatorSource)flowDocument).DocumentPaginator; 
      // set page size 
      paginator.PageSize = new System.Windows.Size(width, height); 
      // save as XPS 
      rsm.SaveAsXaml(paginator); 
      rsm.Commit(); 
     } 
     return stream.ToArray(); 
    } 
} 

}

这wroks在发展精细不同的机器上部署时environment.But收到此错误。（IIS6）。

启动URI：C：\ Documents和Settings \ 050583b.syn \桌面\ document.xps 应用程序标识：

System.IO.FileFormatException：文件包含损坏的数据。 在MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.FindPosition（流archiveStream） 在MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.SeekableLoad（ZipIOBlockManager图块管理员） 在MS.Internal.IO.Zip.ZipIOBlockManager.LoadEndOfCentralDirectoryBlock（） 在MS.Internal.IO.Zip.ZipArchive..ctor（Stream archiveStream，FileMode mode，FileAccess access，布尔流，布尔ownStream） at MS.Internal.IO.Zip.ZipArchive.OpenOnStream（Stream stream，FileMode mode，FileAccess访问，布尔流） at System.IO.Packaging.ZipPackage..ctor（Stream s，FileMode mode，FileAccess access，Boolean streaming） at System.IO.Packaging.Package.Open（Stream stream，FileMode packageMode，FileAccess packageAccess ，布尔流） 在System.IO.Pa ckaging.Package.Open（Stream stream） at MS.Internal.Documents.Application.TransactionalPackage..ctor（Stream original） at MS.Internal.Documents.Application.PackageController.MS.Internal.Documents.Application.IDocumentController.Open （Document document） at MS.Internal.Documents.Application.DocumentManager.DispatchOpen（IDocumentController controller，Document document） at MS.Internal.Documents.Application.DocumentManager。 <> c__DisplayClass6.b__5（IDocumentController控制器，文档对象） 在MS.Internal.Documents.Application.ChainOfResponsiblity 2.Dispatch(Action action, S subject) at MS.Internal.Documents.Application.DocumentManager.<>c__DisplayClass6.<OrderByLeastDependent>b__4(Document member) at MS.Internal.Documents.Application.ChainOfDependencies 1.OrderByLeastDependent（T构件，动作动作） 在MS.Internal.Documents.Application.DocumentManager.OrderByLeastDependent（DispatchDelegate动作，Document document） at MS.Internal.Documents.Application.DocumentManager.Open（Document document） at MS.Internal.AppModel.ApplicationProxyInternal.InitContainer（） at MS.Internal.AppModel.ApplicationProxyInternal.Run（InitData initData）

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Answer 1

我想问题是与字节不完全得到w进入响应。 尝试以下方法，并希望它能正常工作。

HttpContext context = HttpContext.Current; 
context.Response.Clear(); 
context.Response.ContentType = "application/vnd.ms-xpsdocument"; 
context.Response.AppendHeader("Content-Disposition", "attachment; filename=document.xps"); 
context.Response.End();