ArrayList vs List

by

You’ll be able to use the LINQ extension methods directly with List<object>, but not with ArrayList, unless you inject a Cast<object>() / OfType<object> (thanks to IEnumerable<object> vs IEnumerable). That’s worth quite a bit, even if you don’t need type safety etc.

The speed will be about the same; structs will still be boxed, etc – so there isn’t much else to tell them apart. Except that I tend to see ArrayList as “oops, somebody is writing legacy code again…” ;-p

More Related Contents:

  1. ArrayList vs List in C#
  2. Making a List in C# with three flexible elements in one datatype
  3. Why not inherit from List?
  4. What is the best way to modify a list in a ‘foreach’ loop?
  5. Using LINQ to remove elements from a List
  6. How do arrays in C# partially implement IList?
  7. Convert a list to a string in C#
  8. Remove items from one list in another
  9. Does .NET have a way to check if List a contains all items in List b?
  10. Merge two (or more) lists into one, in C# .NET
  11. Why isn’t ArrayList marked [Obsolete]?
  12. How to initialize a List to a given size (as opposed to capacity)?
  13. c# When should I use List and when should I use arraylist?
  14. When a class is inherited from List, XmlSerializer doesn’t serialize other attributes
  15. Compare two Lists for differences
  16. Conversion from List to array T[]
  17. Generic List – moving an item within the list
  18. convert List to IList
  19. How do I get a list of installed updates and hotfixes?
  20. C#: How to add subitems in ListView
  21. IEnumerable vs IReadonlyCollection vs ReadonlyCollection for exposing a list member
  22. Difference between Select and ConvertAll in C#
  23. Using Linq Except not Working as I Thought
  24. WriteLine with a class
  25. ArgumentOutOfRangeException on initialized List
  26. C# List – Removing items while looping / iterating [duplicate]
  27. How to sort list of Ip Addresses using c#
  28. What’s Wrong with an ArrayList?
  29. Multi-dimensional arraylist or list in C#?
  30. Does Distinct() method keep original ordering of sequence intact?

Leave a Comment