private void attach_purchaseOrders(purchaseOrder entity)
		{
			this.SendPropertyChanging();
			entity.docStatus = this;
		}
		private void detach_purchaseOrders(purchaseOrder entity)
		{
			this.SendPropertyChanging();
			entity.document = null;
		}
		private void attach_purchaseOrders(purchaseOrder entity)
		{
			this.SendPropertyChanging();
			entity.currency = this;
		}
		private void detach_purchaseOrders(purchaseOrder entity)
		{
			this.SendPropertyChanging();
			entity.businessPartner = null;
		}
 partial void DeletepurchaseOrder(purchaseOrder instance);
 partial void UpdatepurchaseOrder(purchaseOrder instance);
 partial void InsertpurchaseOrder(purchaseOrder instance);