Convert WPF (XAML) Control to XPS Document

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Actually after messing around with heaps of different samples, all of which are incredibly convoluted and require the use of Document Writers, Containers, Print Queues and Print Tickets, I found Eric Sinks article about Printing in WPF
The simplified code is a mere 10 lines long

public void CreateMyWPFControlReport(MyWPFControlDataSource usefulData)
{
  //Set up the WPF Control to be printed
  MyWPFControl controlToPrint;
  controlToPrint = new MyWPFControl();
  controlToPrint.DataContext = usefulData;

  FixedDocument fixedDoc = new FixedDocument();
  PageContent pageContent = new PageContent();
  FixedPage fixedPage = new FixedPage();

  //Create first page of document
  fixedPage.Children.Add(controlToPrint);
  ((System.Windows.Markup.IAddChild)pageContent).AddChild(fixedPage);
  fixedDoc.Pages.Add(pageContent);
  //Create any other required pages here

  //View the document
  documentViewer1.Document = fixedDoc;
}

My sample is fairly simplistic, it doesn’t include Page Sizing and Orientation which contains a whole different set of issues that don’t work as you would expect.
Nor does it contain any save functionality as MS seem to have forgotten to include a Save button with the Document Viewer.

Save Functionality is relatively simple (and is also from Eric Sinks article)

public void SaveCurrentDocument()
{
 // Configure save file dialog box
 Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
 dlg.FileName = "MyReport"; // Default file name
 dlg.DefaultExt = ".xps"; // Default file extension
 dlg.Filter = "XPS Documents (.xps)|*.xps"; // Filter files by extension

 // Show save file dialog box
 Nullable<bool> result = dlg.ShowDialog();

 // Process save file dialog box results
 if (result == true)
 {
   // Save document
   string filename = dlg.FileName;

  FixedDocument doc = (FixedDocument)documentViewer1.Document;
  XpsDocument xpsd = new XpsDocument(filename, FileAccess.ReadWrite);
  System.Windows.Xps.XpsDocumentWriter xw = XpsDocument.CreateXpsDocumentWriter(xpsd);
  xw.Write(doc);
  xpsd.Close();
 }
}

So the answer is Yes, you can take an Existing WPF (XAML) Control, databind it and turn it into an XPS document – and its not all that difficult.

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