How Can I remove backstack till the required pagename in Wp7.1

I want to remove pages from backstack till a particular page say "C" has reached when I am on some other page say "F". Is Its posiible to remove backstack upon pagename?

Thanks and Regards, Kanaya

You can easily traverse the backstack and check the page names and remove items like this:

        while (NavigationService.CanGoBack)
        {
            if (NavigationService.BackStack.First().Source.OriginalString == "/C.xaml")
            {
                break;
            }
            NavigationService.RemoveBackEntry();
        }