namespace System.ComponentModel.Design { public interface IComponentChangeService { event ComponentEventHandler ComponentAdded; event ComponentEventHandler ComponentAdding; event ComponentChangedEventHandler ComponentChanged; event ComponentChangingEventHandler ComponentChanging; event ComponentEventHandler ComponentRemoved; event ComponentEventHandler ComponentRemoving; event ComponentRenameEventHandler ComponentRename; void OnComponentChanged(object component, MemberDescriptor member, object oldValue, object newValue); void OnComponentChanging(object component, MemberDescriptor member); } }