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Alex Rivera
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private void NotifyFreeChannelsChanged() //1. { if (FreeChannelsChanged != null) { FreeChannelsChanged(this, null); } } private void NotifyFreeChannelsChanged() //2. { NotifyCollectionChangedEventHandler h = FreeChannelsChanged ; if (h != null) h(this, e); } out of these which is better and why. or it is just a extra check. not a major difference.
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