Remove duplicates from a List in C#

Question

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

Answer 1

I like to use this command:

List myStoreList = Service.GetStoreListbyProvince(provinceId)
                                                 .GroupBy(s => s.City)
                                                 .Select(grp => grp.FirstOrDefault())
                                                 .OrderBy(s => s.City)
                                                 .ToList();

I have these fields in my list: Id, StoreName, City, PostalCode I wanted to show list of cities in a dropdown which has duplicate values. solution: Group by city then pick the first one for the list.

I hope it helps :)