C# 如何获取FlowDocument超链接以启动浏览器并转到WPF应用程序中的URL？

WPF应用程序中的以下代码创建了一个超链接，该超链接的外观和行为类似于超链接，但单击时不会执行任何操作

我必须更改什么，以便在单击它时，它打开默认浏览器并转到指定的URL？

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>

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;
        }
    }
}

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我找到了这个问题的答案，您必须添加RequestNavigate，然后自己处理：

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;
}

---

找到了这个Poma的解决方案。下面的代码部分应该添加到您需要执行此操作的类中。或者，如果需要从多个文件访问它，可以将它放在某个静态类中。我对我正在做的事情做了一些微调

    #region Activate Hyperlinks in the Rich Text box
    //http://stackoverflow.com/questions/5465667/handle-all-hyperlinks-mouseenter-event-in-a-loaded-loose-flowdocument
    void SubscribeToAllHyperlinks(FlowDocument flowDocument)
    {
        var hyperlinks = GetVisuals(flowDocument).OfType<Hyperlink>();
        foreach (var link in hyperlinks)
            link.RequestNavigate += new System.Windows.Navigation.RequestNavigateEventHandler(link_RequestNavigate);
    }

    public static IEnumerable<DependencyObject> GetVisuals(DependencyObject root)
    {
        foreach (var child in LogicalTreeHelper.GetChildren(root).OfType<DependencyObject>())
        {
            yield return child;
            foreach (var descendants in GetVisuals(child))
                yield return descendants;
        }
    }

    void link_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e)
    {
        //http://stackoverflow.com/questions/2288999/how-can-i-get-a-flowdocument-hyperlink-to-launch-browser-and-go-to-url-in-a-wpf
        Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
        e.Handled = true;
    }
    #endregion Activate Hyperlinks in the Rich Text box

所有HTMLConverter资料可在以下网址找到：

---

如果您需要将HTML转换为流文档，就需要这样做。不过，这稍微超出了本主题的范围

如果我从RTF加载文档会怎么样？请参见后面的问题-这两个问题可能应该合并，但我不确定它们是否是真正的重复项。起初，这个解决方案对我不起作用，所有超链接都被取消。只有在我更改了

SubscribeToAllHyperlinks

并使用了

link.Command

而不是事件处理程序之后，一切才顺利进行。我正在使用.NET4.5，也许这会有所不同。

        string xaml = HTMLConverter.HtmlToXamlConverter.ConvertHtmlToXaml(this.itemControl.NotificationItem.Body, true);
        FlowDocument flowDocument = XamlReader.Load(new XmlTextReader(new StringReader(xaml))) as FlowDocument;
        SubscribeToAllHyperlinks(flowDocument);
        bodyFlowDocument.Document = flowDocument;