public IEnumerator <T> GetEnumerator()
{
ListNodeT <T> current = Last;
while (current != null)
{
yield return(current.Value);
current = current.Prev;
}
}
public ListNodeT <T> AddLast(T node)
{
var newNode = new ListNodeT <T>(node);
if (First == null)
{
First = newNode;
Last = First;
}
else
{
Last.Next = newNode;
newNode.Prev = Last;
Last = newNode;
}
return(newNode);
}