Wpf webbrowser disable external links - wpf

elI am working on a Wpf application. it contains a webbrowser where the user authenticates via Facebook. The problem is that the user is capable of clicking on links (for example: Forgot your password?) the standaard browser then open... what i want to do is to disable/block all the external links. so users can only authenticate and not navigate through the webbrowser control. I hoop you guys can help me out.
Update 1
Like suggested i can check the source of the webbrowser. So i can allow the wanted pages. but the problem are the links. they open on IE. i dont want to open them, but to block them at all
Description image
private void webBrowserFacebook_Navigating_1(object sender, NavigatingCancelEventArgs e)
{
string huidigeLink = Convert.ToString(webBrowserFacebook.Source);
MessageBox.Show(huidigeLink);
// check for allowed pages
}
Update 2
I was able to find a solution: http://social.technet.microsoft.com/wiki/contents/articles/22943.preventing-external-links-from-opening-in-new-window-in-wpf-web-browser.aspx
Very slef explanatory.. thank you guys for the help!

void Window1_Loaded(object sender, RoutedEventArgs e)
{
browser = new WebBrowser();
browser.Navigate(new Uri("http://www.google.com"));
browser.Navigating += new NavigatingCancelEventHandler(browser_Navigating);
browser.Navigated += new NavigatedEventHandler(browser_Navigated);
}
void browser_Navigating(object sender, NavigatingCancelEventArgs e)
{
//Your checks should happen here..
Console.WriteLine("Loading Webpage !!");
}
void browser_Navigated(object sender, NavigationEventArgs e)
{
Console.WriteLine("Webpage Loaded !!");
}
You can register for WebBrowser.Navigating Event.
Navigating event handlers are passed an instance of the NavigatingCancelEventArgs class. You can cancel the navigation by setting the Cancel property of the NavigatingCancelEventArgs object to true.
Or you can invoke script or browser instance to stop loading if URL navigating doesn't matches.
yourWebBrowser.InvokeScript("eval", "document.execCommand('Stop');");

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<WebBrowser Source="http://www.google.com" Navigated="WebBrowser_Navigated" />
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var browser = sender as WebBrowser;
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}
On my machine, when the navigation failed, I got this URL:
res:ieframe.dll/navcancl.html#http://www.google.com
While I don't think we could count on the URL being exactly this all the time, I bet you could inspect it and determine that it's NOT the URL you were looking for. In fact, the "http:" is now "res:". When you see this happen (and don't expect it) you could make the browser point to a local source to display a message.

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