Wpf – How to get the selected text of a WPF FlowDocument

copyflowdocumentwpf

I'm using .NET 3.5

I have a FlowDocument inside a FlowDocumentScrollViewer. I am not using RichTextBox. The FlowDocument comes with a number of "freebies", including text selection and a context menu for copy/paste.

How can I find out what text is currently selected in the FlowDocument? I imagine that I could use ApplicationCommands.Copy to get the text into the clipboard and then read it from there, but I don't want to change the contents of the clipboard if I don't have to.

There must be something I'm missing…

Best Answer

What version of .net framework are you using? Since version 3.5 there is Selection property introduced for FlowDocumentScrollViewer control. You can use it to work with selected text, smth like this:

TextPointer potStart = flowDocumentScrollViewer.Selection.Start;
TextPointer potEnd = flowDocumentScrollViewer.Selection.End;
TextRange range = new TextRange(potStart,potEnd);
Console.WriteLine(range.Text);

hope this helps, regards

Related Solutions

Wpf – Printing a WPF FlowDocument

yes, make a copy of the FlowDocument before printing it. This is because the pagination and margins will be different. This works for me.

    private void DoThePrint(System.Windows.Documents.FlowDocument document)
    {
        // Clone the source document's content into a new FlowDocument.
        // This is because the pagination for the printer needs to be
        // done differently than the pagination for the displayed page.
        // We print the copy, rather that the original FlowDocument.
        System.IO.MemoryStream s = new System.IO.MemoryStream();
        TextRange source = new TextRange(document.ContentStart, document.ContentEnd);
        source.Save(s, DataFormats.Xaml);
        FlowDocument copy = new FlowDocument();
        TextRange dest = new TextRange(copy.ContentStart, copy.ContentEnd);
        dest.Load(s, DataFormats.Xaml);

        // Create a XpsDocumentWriter object, implicitly opening a Windows common print dialog,
        // and allowing the user to select a printer.

        // get information about the dimensions of the seleted printer+media.
        System.Printing.PrintDocumentImageableArea ia = null;
        System.Windows.Xps.XpsDocumentWriter docWriter = System.Printing.PrintQueue.CreateXpsDocumentWriter(ref ia);

        if (docWriter != null && ia != null)
        {
            DocumentPaginator paginator = ((IDocumentPaginatorSource)copy).DocumentPaginator;

            // Change the PageSize and PagePadding for the document to match the CanvasSize for the printer device.
            paginator.PageSize = new Size(ia.MediaSizeWidth, ia.MediaSizeHeight);
            Thickness t = new Thickness(72);  // copy.PagePadding;
            copy.PagePadding = new Thickness(
                             Math.Max(ia.OriginWidth, t.Left),
                               Math.Max(ia.OriginHeight, t.Top),
                               Math.Max(ia.MediaSizeWidth - (ia.OriginWidth + ia.ExtentWidth), t.Right),
                               Math.Max(ia.MediaSizeHeight - (ia.OriginHeight + ia.ExtentHeight), t.Bottom));

            copy.ColumnWidth = double.PositiveInfinity;
            //copy.PageWidth = 528; // allow the page to be the natural with of the output device

            // Send content to the printer.
            docWriter.Write(paginator);
        }

    }

WPF Handle links inside FlowDocument

There is the Hyperlink text element that has a Command property and a Click event. It behaves pretty much like a button, but it is used inside the FlowDocuments. You can use either method to achieve what you are after, but I tend to prefer Commands. Especially if you are implementing this using the MVVM pattern as you have tagged...

Best Answer

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Wpf – Printing a WPF FlowDocument

WPF Handle links inside FlowDocument

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