System.Collections.Generic.List (v2.0)

[Guest]

I've noticed that in VS.NET 2.0 Beta 1 that none of the methods in
System.Collections.Generic.List are overridable. In my app I currently have
over 50 strongly typed ArrayLists that inherit from
System.Collections.ArrayList. Each of these types raise strongly typed
events for when items are added and removed (e.g., AddingItem, AddedItem,
CollectionChanged, etc.). One of my hopes for v2.0 was to create a single
generic List that replaces all of my current ArrayLists. But, if methods in
System.Collections.Generic.List are not overridable then I won't be able to
insert the necessary code for raising the events. Note that shadowing the
necessary methods is not safe because code that is executed outside of my
application will not call the shadowed methods (e.g., when the List is being
edited by a PropertyGrid).

Can somebody tell me if methods in System.Collections.Generic.List are
expected to be overridable in the final version of VS.NET 2.0 as they are in
System.Collections.ArrayList?

Thanks,
Lance

 

[Cor Ligthert]

Notice that there are for beta testing special newsgroups
http://communities.microsoft.com/newsgroups/default.asp?icp=whidbey&slcid=us

 

[Mattias Sjögren]

Can somebody tell me if methods in System.Collections.Generic.List are
expected to be overridable in the final version of VS.NET 2.0 as they are in
System.Collections.ArrayList?

No.

But you can still write a generic class that implements IList(Of T)
and uses List(Of T) internally for storage.



Mattias