EventTriggerBase Generic Class
Expression Studio 4.0
Represents a trigger that can listen to an element other than its AssociatedObject.
Namespace: System.Windows.Interactivity
Assembly: System.Windows.Interactivity (in system.windows.interactivity.dll)
EventTriggerBase extends TriggerBase to add knowledge of another object than the one it is attached to.
This allows a user to attach a Trigger/Action pair to one element and invoke the Action in response to a
change in another object somewhere else. Override OnSourceChanged to hook or unhook handlers on the source
element, and OnAttached/OnDetaching for the associated element. The type of the Source element can be
constrained by the generic type parameter. If you need control over the type of the
AssociatedObject, set a TypeConstraintAttribute on your derived type.