Gets the routing strategy of the routed event.
Assembly: PresentationCore (in PresentationCore.dll)
By convention, tunneling routed events have the name prefix "Preview" and an associated bubbling event defined. It should be rare that there would be only a tunneling version and not a matching bubbling version. For more information, see How to: Create a Custom Routed Event.
The value of this property originates from the RegisterRoutedEvent method that defines a RoutedEvent. Specifically, the value of is the routingStrategy parameter value that was passed to RegisterRoutedEvent.