How to Quickly Remove Items From a List

Question

I am looking for a way to quickly remove items from a C# List. The documentation states that the List.Remove() and List.RemoveAt()<

Answer 1

If you're happy creating a new list, you don't have to go through setting items to null. For example:

// This overload of Where provides the index as well as the value. Unless
// you need the index, use the simpler overload which just provides the value.
List newList = oldList.Where((value, index) => index % 5 != 0)
                              .ToList();

However, you might want to look at alternative data structures, such as LinkedList or HashSet. It really depends on what features you need from your data structure.