namespace System.ComponentModel.Design { public interface IServiceContainer : IServiceProvider { void AddService(Type serviceType, ServiceCreatorCallback callback); void AddService(Type serviceType, ServiceCreatorCallback callback, bool promote); void AddService(Type serviceType, object serviceInstance); void AddService(Type serviceType, object serviceInstance, bool promote); void RemoveService(Type serviceType); void RemoveService(Type serviceType, bool promote); } }