C# Subclassing Generic Types

A generic class can be subclassed just like a nongeneric class.

The subclass can leave the base class's type parameters open, as in the following example:


class Stack<T>                   {...}
class SpecialStack<T> : Stack<T> {...}

Or the subclass can close the generic type parameters with a concrete type:


class IntStack : Stack<int>  {...}

A subtype can also introduce fresh type arguments:


class List<T>                     {...}
class KeyedList<T,TKey> : List<T> {...}