Check out example codes for "built in methods to order a list c#". It will help you in understanding the concepts better.

Code Example 1

using System.Linq;
//This list contains OrderDate, OrderID, Quantity, Total properties
List<Order> objListOrder = new List<Order>(); 
//How to GetOrderList(objListOrder)?
//- Ascending order
List<Order> SortedList = objListOrder.OrderBy(o=>o.OrderDate).ToList();
//- Descending order
List<Order> SortedList = objListOrder.OrderByDescending(o=>o.OrderDate).ToList();

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