public void InsertCell(ObjectCell afterCell, ObjectCell newCell)
{
newCell.Next = afterCell.Next;
afterCell.Next = newCell;
newCell.Next.Previous = newCell;
newCell.Previous = afterCell;
}
public void IterateFromEnd()
{
ObjectCell end = End;
while (end != null)
{
Console.WriteLine(end.Value);
end = end.Previous;
}
}
public void IterateFromTop()
{
ObjectCell top = Top;
while (top != null)
{
Console.WriteLine(top.Value);
top = top.Next;
}
}
public DoublyLinkedList()
{
Top = new ObjectCell(null);
End = new ObjectCell(null);
End.Next = null;
End.Previous = Top;
Top.Next = End;
Top.Previous = null;
}
public void AddCellAtEnd(ObjectCell newCell)
{
InsertCell(End.Previous, newCell);
}
public void AddCellAtStart(ObjectCell newCell)
{
InsertCell(Top, newCell);
}