public void RemoveFirst()
{
head = head.Next;
if (head != null)
{
head.Previous = null;
}
this.Count--;
}
public void RemoveLast()
{
tail = tail.Previous;
if (tail != null)
{
tail.Next = null;
}
this.Count--;
}
public T[] ToArray()
{
T[] array = new T[this.Count];
DoubleListElement <T> item = head;
for (int i = 0; i < this.Count; i++)
{
array[i] = item.Data;
item = item.Next;
}
return(array);
}
public bool IsContain(T Element)
{
DoubleListElement <T> item = head;
for (int i = 0; i < this.Count; i++)
{
if (item.Data.Equals(Element))
{
return(true);
}
else
{
item = item.Next;
}
}
return(false);
}
public void Add(T NewElementData)
{
DoubleListElement <T> listElement = new DoubleListElement <T>(NewElementData);
if (head == null)
{
head = listElement;
tail = listElement;
}
else
{
tail.Next = listElement;
listElement.Previous = tail;
listElement.Next = null;
tail = listElement;
}
count++;
}
public void Add(DoubleListElement <T> NewElement)
{
Add(NewElement.Data);
}