IEventInterceptionAspect.OnInvokeHandler Method
OnInvokeHandler(EventInterceptionArgs)
Method invoked when the event to which the current aspect is applied is fired, for each delegate of this event, and instead of invoking this delegate.
Declaration
[RequiresEventInterceptionAdviceAnalysis]
[RequiresDebuggerEnhancement]
[HasInheritedAttribute]
void OnInvokeHandler(EventInterceptionArgs args)Parameters
| Type | Name | Description |
|---|---|---|
| EventInterceptionArgs | args | Handler arguments. |
Remarks
note
Because of the way how the C# compiler implements
field-like events
(i.e. events where you
don't implement the
Add
and
Remove
semantics manually), the
Invoke Event Handler
semantic (
OnInvokeHandler(EventInterceptionArgs)
or equivalent) shall
not
be invoked for delegates that have been added from inside the class that declares this event.
note
The
Invoke Event Handler
semantic is different from normal event firing.
Indeed, when you fire an event, all handlers that were added to this event are fired. However, the current method
invokes only a single handler: the one passed to the
handler
parameter.