NavigationService.NavigationFailed Event
Occurs when an error occurs while navigating to the requested content.
Assembly: PresentationFramework (in PresentationFramework.dll)
When either a WebException or an IOException is thrown during a navigation, the NavigationFailed event is raised. NavigationFailed is passed a NavigationFailedEventArgs that encapsulates information about both the exception and the details of the navigation that caused the exception.
When an exception results from a failed navigation, and is unhandled, the following events are raised in the order listed:
NavigationService.NavigationFailed.
Frame.NavigationFailed or NavigationWindow.NavigationFailed.
If a navigator (NavigationWindow, Frame) is hosted by one or more navigators, NavigationFailed is not raised on any of them.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.