/// <summary>
/// Initializes a new instance of the <see cref="WeakEventSubscription{T1, T2}" /> class.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="eventHandler">The event handler.</param>
/// <param name="subscribeAction">The action to subscribe the event handler.</param>
/// <param name="unsubscribeAction">The action to unsubscribe the event handler.</param>
public WeakEventSubscription(object target, TypedEventHandler <T1, T2> eventHandler, Action <TypedEventHandler <T1, T2> > subscribeAction, Action <TypedEventHandler <T1, T2> > unsubscribeAction)
{
_unsubscribeAction = unsubscribeAction;
Method = eventHandler.GetMethodInfo();
EventHandlerReference = new WeakReference(eventHandler.Target);
Reference = new WeakReference(target);
subscribeAction(OnEvent);
}
public WeakTypedEventHandler(TypedEventHandler <TSender, TResult> callback)
{
// Since we originally weak referenced the event handler, the event handler will obviously be disposed unless the calling
// subscriber holds a reference to it.
// We'll hold a weak reference to the subscriber target
_targetReference = new WeakReference(callback.Target);
// And also obtain the actual method info
_methodInfo = callback.GetMethodInfo();
}