Item removal from list

please follow steps to do generic soln.

var removalItem(s);

For loop Order

{

Mention the removal item in removalItem collection;

if removalItem is null or empty {

return order;

else

return order.item.except(removalItem);

}

If you are compaing List then use below 

var ordertwoDistict=OrderTwoList.Except(OrderOneList);

If you are comparing two Complex type then use below

 Var orderTwoDistinct=OrderTwoList.Select(x => x.ItemName).Except(OrderOneList.Select(y => y.ItemName)).ToList();