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copied!<p>You need something that will parse the Text of the TextBlock and create the all the inline objects at runtime. For this you can either create your own custom control derived from TextBlock or an attached property.</p> <p>For the parsing, you can search for URLs in the text with a regular expression. I borrowed a regular expression from <a href="http://geekswithblogs.net/casualjim/archive/2005/12/01/61722.aspx" rel="noreferrer">A good url regular expression?</a> but there are others available on the web, so you can choose the one which works best for you.</p> <p>In the sample below, I used an attached property. To use it, modify your TextBlock to use NavigateService.Text instead of Text property:</p> <pre><code><Window x:Class="DynamicNavigation.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:DynamicNavigation" Title="Window1" Height="300" Width="300"> <StackPanel>  <TextBox x:Name="url"/>  <TextBlock local:NavigationService.Text="{Binding Text, ElementName=url}" /> </StackPanel> </Window> </code></pre> <p>The code for the attached property is given below:</p> <pre><code>using System; using System.Text.RegularExpressions; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; namespace DynamicNavigation { public static class NavigationService { // Copied from http://geekswithblogs.net/casualjim/archive/2005/12/01/61722.aspx private static readonly Regex RE_URL = new Regex(@"(?#Protocol)(?:(?:ht|f)tp(?:s?)\:\/\/|~/|/)?(?#Username:Password)(?:\w+:\w+@)?(?#Subdomains)(?:(?:[-\w]+\.)+(?#TopLevel Domains)(?:com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|museum|travel|[a-z]{2}))(?#Port)(?::[\d]{1,5})?(?#Directories)(?:(?:(?:/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|/)+|\?|#)?(?#Query)(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*(?#Anchor)(?:#(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)?"); public static readonly DependencyProperty TextProperty = DependencyProperty.RegisterAttached( "Text", typeof(string), typeof(NavigationService), new PropertyMetadata(null, OnTextChanged) ); public static string GetText(DependencyObject d) { return d.GetValue(TextProperty) as string; } public static void SetText(DependencyObject d, string value) { d.SetValue(TextProperty, value); } private static void OnTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { var text_block = d as TextBlock; if (text_block == null) return; text_block.Inlines.Clear(); var new_text = (string)e.NewValue; if ( string.IsNullOrEmpty(new_text) ) return; // Find all URLs using a regular expression int last_pos = 0; foreach (Match match in RE_URL.Matches(new_text)) { // Copy raw string from the last position up to the match if (match.Index != last_pos) { var raw_text = new_text.Substring(last_pos, match.Index - last_pos); text_block.Inlines.Add(new Run(raw_text)); } // Create a hyperlink for the match var link = new Hyperlink(new Run(match.Value)) { NavigateUri = new Uri(match.Value) }; link.Click += OnUrlClick; text_block.Inlines.Add(link); // Update the last matched position last_pos = match.Index + match.Length; } // Finally, copy the remainder of the string if (last_pos < new_text.Length) text_block.Inlines.Add(new Run(new_text.Substring(last_pos))); } private static void OnUrlClick(object sender, RoutedEventArgs e) { var link = (Hyperlink)sender; // Do something with link.NavigateUri like: Process.Start(link.NavigateUri.ToString()); } } } </code></pre>

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