Efficient Method for Creating CSV String from Lists/SortedLists C#?

Question

I have an application which implements Asynchronous SOAP. Every 50-100ms I will receive data which is converted into a SortedList object. I als

Answer 1

I agree with answer from Conrad - yet one more idea to improve performance would be to do reverse lookup i.e. take each element from SortedList and do lookup in other list (of course, I would recommend to have dictionary instead of list for faster lookup).