partial void DeleteEventRegType(EventRegType instance);
 partial void UpdateEventRegType(EventRegType instance);
		private void detach_EventRegTypes(EventRegType entity)
		{
			this.SendPropertyChanging();
			entity.Event = null;
		}
 partial void InsertEventRegType(EventRegType instance);
		private void attach_EventRegTypes(EventRegType entity)
		{
			this.SendPropertyChanging();
			entity.Event = this;
		}