How to handle WPF WebBrowser control navigation exception

Question

Let\'s say that WPF WebBrowser control shows some navigation errors and the page is not showing.

So there is an exception of WPF WebBrowser contro

Answer 1

It's an old question but since I have just suffered through this, I thought I may as well share. First, I implemented Markus' solution but wanted something a bit better as our Firewall remaps 403 message pages.

I found an answer here (amongst other places) that suggests using NavigationService as it has a NavigationFailed event.

In your XAML, add:

In your code-behind's constructor, add:

frame.Navigated += new System.Windows.Navigation.NavigatedEventHandler(frame_Navigated);
frame.NavigationFailed += frame_NavigationFailed;
frame.LoadCompleted += frame_LoadCompleted;

frame.NavigationService.Navigate(new Uri("http://theage.com.au"));

The handlers can now deal with either a failed navigation or a successful one:

void frame_NavigationFailed(object sender, System.Windows.Navigation.NavigationFailedEventArgs e)
{
  e.Handled = true;
  // TODO: Goto an error page.
}

private void frame_Navigated(object sender,  System.Windows.Navigation.NavigationEventArgs e)
{
  System.Diagnostics.Trace.WriteLine(e.WebResponse.Headers);
}

BTW: This is on the .Net 4.5 framework