IList obviously keeped back an HTable and under the sorting algorithim it has used the QuicSort. So it can be use an ArrayList of generic or any enumeratic variations that hold the algorithm. There many ways to develop for any special queries by an arraylist. There have some question;;; 1- Why? 2- What is our aim 3- What is our strategy it is linking to the platform and technology 4- which is cheaper for our credentials 5- Prefere

Why dont you write your own IList object like to your queries

this is the normal behavior in the C# like to the ECMA I didnt understand why you crawled with.. ;P