private void detach_Payments(Payment entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
		private void attach_Payments(Payment entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}
 partial void UpdatePayment(Payment instance);
 partial void DeletePayment(Payment instance);
 partial void InsertPayment(Payment instance);