Duplicate:
It looks like IEnumerable, ICollection, IList and their generic equivalents are in separate branches.
views:
259answers:
1
+4
A:
It does this so that all older methods and code that knows how to handle an IEnumerable is guaranteed to work with your collections.
Implementing IEnumerable<T> implicitly means you implement IEnumerable.
By branches, do you mean namespaces?
Lasse V. Karlsen
2009-07-23 21:24:53
Thanks. By branches I meant, they are like List vs List<T>, are independent of each other.
Joan Venge
2009-07-23 21:42:58
But couldn't they update those old methods to also work with the generic version?
Joan Venge
2009-07-23 21:43:56
This way old assemblies expecting IEnumerable will work with the IEnumerable<T> class. Sometimes there isn't source code to modify (ie., the new class is part of something that plugs into an existing app at runtime, someone using a library that provides only assemblies, no source).
Michael Burr
2009-07-23 22:04:06
Nor might it be worth the time to fix already working code like that.
Lasse V. Karlsen
2009-07-23 22:07:54