Ordering items by length in IEnumerable<T>?

Question

I have a IEnumerable<T> collection with Name and FullName as items in it. There are around 5000 items in it.

I want to display the FullNames sorted by its lenght, so first the longest name to the shortest name displays. How can I do it in most optimized manner?

Answer 1

It would help to have some more information about exactly what your data structures look like. But I think that this LINQ query should get you started.

var orderedItems = from name in nameList
                   order by name.FullName.Length descending
                   select name;

Here is a whole set of LINQ Order By examples.

Answer 2

This answer is effectively the same as spoon16's but without using a query expression. I generally don't use a query expression for single operations (e.g. just an ordering, or just a filter, or just a projection). I figured it would be good to see the alternatives :)

var orderedList = nameList.OrderByDescending(x => x.FullName.Length);