namespace System.ComponentModel { public abstract class EventDescriptor : MemberDescriptor { public abstract Type ComponentType { get; } public abstract Type EventType { get; } public abstract bool IsMulticast { get; } protected EventDescriptor(MemberDescriptor descr); protected EventDescriptor(MemberDescriptor descr, Attribute[] attrs); protected EventDescriptor(string name, Attribute[] attrs); public abstract void AddEventHandler(object component, Delegate value); public abstract void RemoveEventHandler(object component, Delegate value); } }