public async Task <List <Order_item> > DeleteOrder_itemAsync(List <Order_item> listOrder_item)
{
List <Order_item> result = new List <Order_item>();
checkServiceCommunication();
List <Order_item> gateWayResultList = await _gatewayOrder.DeleteOrder_itemAsync(listOrder_item);
if (gateWayResultList.Count == 0)
{
foreach (Order_item order_item in listOrder_item)
{
int returnValue = _dataSet.DeleteOrder_item(order_item.ID);
if (returnValue > 0)
{
result.Add(order_item);
}
}
}
return(result);
}