public void Print()
{
CustomLinkedListNode <T> temp = _head;
while (temp != null)
{
Console.WriteLine(temp); temp = temp.Next;
}
}
public T this[T val]
{
get { return(Find(val)); }
set
{
CustomLinkedListNode <T> v = FindNode(val);
v.Value = value;
}
}
public CustomLinkedList(int initialSize)
{
_length = 0;
_head = null;
// Add elements to list
for (int i = 0; i < initialSize; i++)
{
AddFirst(new CustomLinkedListNode <T>()); //default(CustomLinkedListNode<T>));
}
}
public void Clear()
{
if (_head != null)
{
for (; _length > 0; _length--)
{
this[_length - 1] = default(T);
}
_head = null;
}
_length = 0;
}
private void AddLast(CustomLinkedListNode <T> value)
{
if (_length == 0)
{
_head = value;
}
else
{
CustomLinkedListNode <T> last = FindNode(_length - 1);
last.Next = value;
last.Next.Previous = last;
}
_length++;
}
private CustomLinkedListNode <T> FindNode(T value)
{
CustomLinkedListNode <T> temp = _head;
for (int i = 0; i < _length; i++)
{
if (temp.Value.Equals(value))
{
return(temp);
}
temp = temp.Next;
}
throw new IndexOutOfRangeException("The value you requested did not exist in the list.");
}
private CustomLinkedListNode <T> FindNode(int index)
{
if (index < 0 || index >= _length)
{
throw new IndexOutOfRangeException(string.Format("The index you requested was out of range. Requested index: {0}, Length of LinkedList: {1}.", index, _length));
}
CustomLinkedListNode <T> temp = _head;
for (; index > 0; index--)
{
temp = temp.Next;
}
return(temp);
}
private void AddFirst(CustomLinkedListNode <T> value)
{
if (_length == 0)
{
_head = value;
}
else
{
CustomLinkedListNode <T> temp = _head;
temp.Previous = value;
_head = value;
_head.Next = temp;
}
_length++;
}
private void Insert(int index, CustomLinkedListNode <T> value)
{
if (index == 0)
{
AddFirst(value);
}
else
{
CustomLinkedListNode <T> temp = FindNode(index);
value.Previous = temp.Previous;
value.Next = temp;
temp.Previous.Next = value;
temp.Previous = value;
_length++;
}
}
public T this[int index]
{
get { return(Find(index)); }
set
{
if (index == 0)
{
if (_head == null)
{
_head = new CustomLinkedListNode <T>();
}
_head.Value = value;
}
else
{
CustomLinkedListNode <T> val = FindNode(index) ?? new CustomLinkedListNode <T>();
val.Value = value;
}
}
}
private void Delete(CustomLinkedListNode <T> value)
{
if (value.Previous == null) // head
{
_head = value.Next;
if (value.Next != null)
{
value.Next.Previous = _head;
}
}
else
{
value.Previous.Next = value.Next;
if (value.Next != null)
{
value.Next.Previous = value.Previous;
}
}
value = null;
}
