EventPatternSourceBase<TSender, TEventArgs> public abstract class EventPatternSourceBase<TSender, TEventArgs> Documentation Code protected EventPatternSourceBase(IObservable<EventPattern<TSender, TEventArgs>> source, Action<Action<TSender, TEventArgs>, EventPattern<TSender, TEventArgs>> invokeHandler) protected void Add(Delegate handler, Action<TSender, TEventArgs> invoke) protected void Remove(Delegate handler)