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

I'm struggling with a similar problem. When the computer loses internet connection we want to handle that in a nice way.

In the lack of a better solution, I hooked up the Navigated event of the WebBrowser and look at the URL for the document. If it is res://ieframe.dll I'm pretty confident that some error has occurred.

Maybe it is possible to look at the document and see if a server returned 404.

private void Navigated(object sender, NavigationEventArgs navigationEventArgs)
{
    var browser = sender as WebBrowser;
    if(browser != null)
    {
        var doc = AssociatedObject.Document as HTMLDocument;
        if (doc != null)
        {
            if (doc.url.StartsWith("res://ieframe.dll"))
            {
                // Do stuff to handle error navigation
            }
        }
    }
}