How can I get a FlowDocument Hyperlink to launch browser and go to URL in a WPF app?

Question

The following code in a WPF app creates a hyperlink that looks and acts like a hyperlink, but doesn't do anything when clicked.

What do I have to change so that when I click it, it opens the default browser and goes to the specified URL?

alt text http://www.deviantsart.com/upload/4fbnq2.png

XAML:

<Window x:Class="TestLink238492.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <StackPanel Margin="10">
        <ContentControl x:Name="MainArea"/>
    </StackPanel>
</Window>

Code Behind:

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;

namespace TestLink238492
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            FlowDocumentScrollViewer fdsv = new FlowDocumentScrollViewer();

            FlowDocument doc = new FlowDocument();
            fdsv.Document = doc;
            fdsv.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden;
            doc.PagePadding = new Thickness(0);
            Paragraph paragraph = new Paragraph();
            doc.Blocks.Add(paragraph);

            Run run = new Run("this is flow document text and ");
            paragraph.Inlines.Add(run);

            Run run2 = new Run("this is a hyperlink");
            Hyperlink hlink = new Hyperlink(run2);
            hlink.NavigateUri = new Uri("http://www.google.com");
            paragraph.Inlines.Add(hlink);

            StackPanel sp = new StackPanel();
            TextBlock tb = new TextBlock();
            tb.Text = "this is textblock text";
            sp.Children.Add(tb);
            sp.Children.Add(fdsv);

            MainArea.Content = sp;
        }
    }
}

Answer 1

I found the answer to this one, you have to add RequestNavigate and handle it yourself:

Run run2 = new Run("this is a hyperlink");
Hyperlink hlink = new Hyperlink(run2);
hlink.NavigateUri = new Uri("http://www.google.com");
hlink.RequestNavigate += new System.Windows.Navigation.RequestNavigateEventHandler(hlink_RequestNavigate);
paragraph.Inlines.Add(hlink);


void hlink_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e)
{
    Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
    e.Handled = true;
}