这是一个使用泛型的演示（省略了错误检查）：
using System;using System.Reflection;static class Program { private class Sub { public event EventHandler<EventArgs> SomethingHappening; } internal static void Raise<TEventArgs>(this object source, string eventName, TEventArgs eventArgs) where TEventArgs : EventArgs { var eventDelegate = (MulticastDelegate)source.GetType().GetField(eventName, BindingFlags.Instance | BindingFlags.NonPublic).GetValue(source); if (eventDelegate != null) { foreach (var handler in eventDelegate.GetInvocationList()) { handler.Method.Invoke(handler.Target, new object[] { source, eventArgs }); } } } public static void Main() { var p = new Sub(); p.Raise("SomethingHappening", EventArgs.Empty); p.SomethingHappening += (o, e) => Console.WriteLine("Foo!"); p.Raise("SomethingHappening", EventArgs.Empty); p.SomethingHappening += (o, e) => Console.WriteLine("Bar!"); p.Raise("SomethingHappening", EventArgs.Empty); Console.ReadLine(); }}
