Remove duplicates from a List in C#

Question

Anyone have a quick method for de-duplicating a generic List in C#?

Answer 1

In Java (I assume C# is more or less identical):

list = new ArrayList(new HashSet(list))

If you really wanted to mutate the original list:

List noDupes = new ArrayList(new HashSet(list));
list.clear();
list.addAll(noDupes);

To preserve order, simply replace HashSet with LinkedHashSet.