How to sort a list C#

Question

I've got a class called "Order" that has a "Order Number" and a "Weight".

I've got a list of orders that is unorganized. I'd like to sort this List by the weight of each order. Ascending and Descending.

        {
            return new List<Order>() {
             new Order(){
             OrderNumber =1,
             Weight = 1.2
            },
             new Order(){
             OrderNumber =2,
             Weight = 1.2
            },
             new Order(){
             OrderNumber =3,
             Weight = 1.2
            },
             new Order(){
             OrderNumber =4,
             Weight = 2
            },
             new Order(){
             OrderNumber =5,
             Weight = 1.2
            },
             new Order(){
             OrderNumber =6,
             Weight = 1.2
            }
            };
        }

I would want to create a List OrganizedOrders in which the heaviest (Order Number 4) would be at the top of this list.

Thank you a lot. I know this is very basic but i'm just getting started. Thanks!

Answer 1

@Luciano try using a lambda expression. Where your list is called myOrders:

myOrders.OrderBy(o => o.Weight);

Or for descending:

myOrders.OrderByDescending(o => o.Weight);

Either of which you could save into a new list if you really need to:

List<Order> ascendingOrders = myOrders.OrderBy(o => o.Weight).ToList();

Answer 2

This has been asked before (How to Sort a List<T> by a property in the object)

Use LINQ:

List<Order> SortedList = myOrderList.OrderBy(o=>o.Weight).ToList();

or

List<Order> SortedList = myOrderList.OrderByDescending(o=>o.Weight).ToList();