Occurs when the document being navigated to is located and has started downloading.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Navigated event handlers are passed an instance of the NavigationEventArgs class, which provides contextual information about the navigation, including Web response details.
This event will only be fired for top-level navigations.