public void Dispose()
{
_articles.Clear();
_customerOrders.Clear();
_productionOrders.Clear();
_purchaseOrders.Clear();
_customerOrderParts.Clear();
_productionOrderBoms.Clear();
_productionOrderOperations.Clear();
_purchaseOrderParts.Clear();
_stockExchangeDemands.Clear();
_stockExchangeProviders.Clear();
_demandToProviderTable.Clear();
_providerToDemandTable.Clear();
}
