Generics - call a method on every object in a List<T>

Question

Is there a way to call a method on every object in a List - e.g.

Instead of

List<MyClass> items = setup();  foreach (MyClass item in items)    item.SomeMethod(); 

You could do something like

foreach(items).SomeMethod(); 

Anything built in, extension methods, or am I just being too damn lazy?

Answer 1

Yes, on List<T>, there is:

items.ForEach(item => item.SomeMethod()) 

The oddity is that this is only available on List<T>, not IList<T> or IEnumerable<T>

To fix this, I like to add the following extension method:

public static class IEnumerableExtensions {     public static void ForEach<T>(this IEnumerable<T> items, Action<T> action)     {         foreach(var item in items)             action(item);     } } 

Then, you can use it on ANYTHING that implements IEnumerable<T>... not just List<T>