How to Sort a List by a property in the object

Question

I have a class called Order which has properties such as OrderId, OrderDate, Quantity, and Total. I have a l

Answer 1

From performance point of view the best is to use a sorted list so that data is sorted as it is added to result. Other approaches need at least one extra iteration on data and most create a copy of data so not only performance but memory usage will be affected too. Might not be an issue with couple of hundreds of elements but will be with thousands, especially in services where many concurrent requests may do sorting at the same time. Have a look at System.Collections.Generic namespace and choose a class with sorting instead of List.

And avoid generic implementations using reflection when possible, this can cause performance issues too.