Where did my ArrayList Go? Metro app

Question

In my Windows 8 app written using Visual Studio 11 Express Beta, I cannot use the ArrayList. Here is my code:

using System.Collections;


ArrayList al = new ArrayList();

Compiler error:

The type or namespace name 'ArrayList' could not be found (are you missing a using directive or an assembly reference?)

Is this something new? I love ArrayLists :)

Answer 1

For WinRT, they took out all of the non-generic collections - it's faster and makes your code more reliable. Use List<T> instead.

ps... this will not be your last time saying "why the heck did they take away that API?" while migrating to WinRT

Answer 2

ArrayList is not available in .NET 4.5 for metro style apps. Use the generic version of List, if you need an object list, use List<object>.

For the .NET for metro style apps API reference, take a look here: http://msdn.microsoft.com/en-us/library/windows/apps/hh454064%28v=vs.110%29.aspx