Наследование: INotifyPropertyChanging, INotifyPropertyChanged
		private void attach_Visits(Visit entity)
		{
			this.SendPropertyChanging();
			entity.Visitor = this;
		}
		private void detach_Visits(Visit entity)
		{
			this.SendPropertyChanging();
			entity.Visitor = null;
		}
		private void detach_Visits(Visit entity)
		{
			this.SendPropertyChanging();
			entity.TrafficType1 = null;
		}
		private void detach_Visits(Visit entity)
		{
			this.SendPropertyChanging();
			entity.ReferringSite = null;
		}
 partial void DeleteVisit(Visit instance);
 partial void UpdateVisit(Visit instance);
 partial void InsertVisit(Visit instance);