Creating an XPS Document from a Web Application

Question

I am trying to create a multi-page XPS document from a web application and trying to transfer this click with the mouse button.

public class 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();
    }
}

}

This works great in a development environment. But getting this error when deploying to another machine (IIS6).

Boot URI: C: \ Documents and Settings \ 050583b.syn \ Desktop \ document.xps Application Identification:

System.IO.FileFormatException: .   MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.FindPosition(Stream archiveStream)   MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.SeekableLoad(ZipIOBlockManager blockManager)   MS.Internal.IO.Zip.ZipIOBlockManager.LoadEndOfCentralDirectoryBlock()   MS.Internal.IO.Zip.ZipArchive..ctor( archiveStream, FileMode, FileAccess, , )   MS.Internal.IO.Zip.ZipArchive.OpenOnStream( , FileMode, FileAccess, )   System.IO.Packaging.ZipPackage..ctor( s, FileMode, FileAccess, )   System.IO.Packaging.Package.Open( , FileMode packageMode, AccessAccess packageAccess, )   System.IO.Packaging.Package.Open( )   MS.Internal.Documents.Application.TransactionalPackage..ctor(Stream original)   MS.Internal.Documents.Application.PackageController.MS.Internal.Documents.Application.IDocumentController.Open( )   MS.Internal.Documents.Application.DocumentManager.DispatchOpen( IDocumentController, )   MS.Internal.Documents.Application.DocumentManager. < > c__DisplayClass6.b__5 ( IDocumentController, )   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, )   MS.Internal.Documents.Application.DocumentManager.OrderByLeastDependent(DispatchDelegate action, Document document)   MS.Internal.Documents.Application.DocumentManager.Open( )   MS.Internal.AppModel.ApplicationProxyInternal.InitContainer()   MS.Internal.AppModel.ApplicationProxyInternal.Run(initData initData)

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Answer 1

, , . , , .

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();