protected virtual void OnEstimationChanged(EstimationEventArgs e) { // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler <EstimationEventArgs> handler = EstimationChanged; if (handler != null) { handler(this, e); } }
protected virtual void OnEstimationChanged(EstimationEventArgs e){ // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler<EstimationEventArgs> handler = EstimationChanged; if (handler != null) { handler(this, e); } }