System.Collection.ICollection (interface)

System.Collecstion.ICollection extends System.Collections.IEnumerable and is itself the base interface that classes in the System.Collections namespace implement.

The generic version of ICollection is System.Collections.Generic.ICollection<T>.

Two prominent interfaces that implement ICollection are

• System.Collections.IDictionary, for key/value pairs
• System.Collections.IList, for (numerically? indexed arrays