partial void DeleteDemanda(Demanda instance);
 partial void UpdateDemanda(Demanda instance);
		private void detach_Demandas(Demanda entity)
		{
			this.SendPropertyChanging();
			entity.Produto = null;
		}
 partial void InsertDemanda(Demanda instance);
		private void attach_Demandas(Demanda entity)
		{
			this.SendPropertyChanging();
			entity.Produto = this;
		}