Is the CollectionBase class still supported?

Question

I want to create a class that inherits from CollectionBase, but it seems that it does not support LINQ extensions!

Is it still supported? Or is there an alternative

Answer 1

Linq extensions are written for IEnumerable (Generic) and CollectionBase (Non-generic) does not inherit from it. That is why you are not able to use Linq on it.

Use System.Collections.ObjectModel.Collection instead.