Action<T1, T2, T3> public sealed delegate Action<T1, T2, T3> : MulticastDelegate Documentation public Action(object object, IntPtr method) public virtual IAsyncResult BeginInvoke(T1 arg1, T2 arg2, T3 arg3, AsyncCallback callback, object object) public virtual void EndInvoke(IAsyncResult __result) public virtual void Invoke(T1 arg1, T2 arg2, T3 arg3)