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 event is raised. 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:
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.