How can I produce a “print preview” of a FlowDocument in a WPF application?

by

Taking the hint from the comment added to my question, I did this: 

private string _previewWindowXaml =
    @"<Window
        xmlns="http://schemas.microsoft.com/netfx/2007/xaml/presentation"
        xmlns:x               ='http://schemas.microsoft.com/winfx/2006/xaml'
        Title="Print Preview - @@TITLE"
        Height="200"
        Width="300"
        WindowStartupLocation ='CenterOwner'>
        <DocumentViewer Name="dv1"/>
     </Window>";

internal void DoPreview(string title)
{
    string fileName = System.IO.Path.GetRandomFileName();
    FlowDocumentScrollViewer visual = (FlowDocumentScrollViewer)(_parent.FindName("fdsv1"));
    try
    {
        // write the XPS document
        using (XpsDocument doc = new XpsDocument(fileName, FileAccess.ReadWrite))
        {
            XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(doc);
            writer.Write(visual);
        }

        // Read the XPS document into a dynamically generated
        // preview Window 
        using (XpsDocument doc = new XpsDocument(fileName, FileAccess.Read))
        {
            FixedDocumentSequence fds = doc.GetFixedDocumentSequence();

            string s = _previewWindowXaml;
            s = s.Replace("@@TITLE", title.Replace("'", "&apos;"));

            using (var reader = new System.Xml.XmlTextReader(new StringReader(s)))
            {
                Window preview = System.Windows.Markup.XamlReader.Load(reader) as Window;

                DocumentViewer dv1 = LogicalTreeHelper.FindLogicalNode(preview, "dv1") as DocumentViewer;
                dv1.Document = fds as IDocumentPaginatorSource;


                preview.ShowDialog();
            }
        }
    }
    finally
    {
        if (File.Exists(fileName))
        {
            try
            {
                File.Delete(fileName);
            }
            catch
            {
            }
        }
    }
}

What it does: it actually prints the content of a visual into an XPS document. Then it loads the “printed” XPS document and displays it in a very simple XAML file that is stored as a string, rather than as a separate module, and loaded dynamically at runtime. The resulting Window has the DocumentViewer buttons: print, adjust-to-max-page-width, and so on.

I also added some code to hide the Search box. See this answer to WPF: How can I remove the searchbox in a DocumentViewer? for how I did that.

The effect is like this:

alt text

The XpsDocument can be found in the ReachFramework dll and the XpsDocumentWriter can be found in the System.Printing dll both of which must be added as references to the project

More Related Contents:

  1. In WPF, how can I determine whether a control is visible to the user?
  2. In WPF, what are the differences between the x:Name and Name attributes?
  3. When creating a new GUI, is WPF the preferred choice over Windows Forms? [closed]
  4. Best way to hide a window from the Alt-Tab program switcher?
  5. My images are blurry! Why isn’t WPF’s SnapsToDevicePixels working?
  6. Apply stroke to a textblock in WPF
  7. How to automatically select all text on focus in WPF TextBox?
  8. Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
  9. There is no ListBox.SelectionMode=”None”, is there another way to disable selection in a listbox?
  10. How to apply multiple styles in WPF
  11. In MVVM model should the model implement INotifyPropertyChanged interface?
  12. BitmapImage in WPF does lock file
  13. INotifyPropertyChanged property name – hardcode vs reflection?
  14. How to create a WPF Window without a border that can be resized via a grip only?
  15. Going fullscreen on secondary monitor
  16. CLIPBRD_E_CANT_OPEN error when setting the Clipboard from .NET
  17. Can you use the asp.net membership provider in a windows application?
  18. Can I overlay a WPF window on top of another?
  19. Setting tab order in WPF
  20. Editable ComboBox with binding to value not in list
  21. DispatcherTimer vs a regular Timer in WPF app for a task scheduler
  22. Binding in a WPF data grid text column
  23. wpf bind to indexer
  24. Ensuring that things run on the UI thread in WPF
  25. How does ItemContainerGenerator.ContainerFromItem work with a grouped list?
  26. How to prevent a new WPF form from stealing focus?
  27. How to implement Balloon message in a WPF application
  28. Create guitar chords editor in WPF (from RichTextBox?)
  29. How do I bind a Byte array to an Image in WPF with a value converter?
  30. When using PresentationFramework.Aero, do I need to set “Copy Local” to true (and include it in my setup project)?

Leave a Comment