Creating custom LinkedList
<p>I am working on creating my own LinkedList. But I can't seem to solve this error. Can anyone help me!</p>

<p>The problem is that I want to insert an object after a particular element. I have created <code>Find</code> method to search for that particular item and return its reference, but I can't seem to solve it.</p>

<pre><code>CustomLinkedList c = new CustomLinkedList();
        c.Add(31);

        c.Add(45);

        c.Add(23);

        c.Add(36);

        c.PrintList();

        Console.WriteLine("\n" + " Process of adding item at a spectifed location");
        c.Addafter(66,23);


        c.PrintList();

class Node
{

    public object Element;
    public Node Link;

    public Node()
    {
        Element = null;
        Link = null;
    }

    public Node(object TheElement)
    {
        Element = TheElement;
        Link = null;
    }

class CustomLinkedList
{
    protected Node header;
    protected Node last;

    public CustomLinkedList()
    {
        //header = new Node("header");
    }

    private Node Find(object Item)
    {
        Node Current = new Node();
        Current = header;
        while (Current.Element != Item &amp;&amp; Current.Link !=null)
        {
            Current = Current.Link;
        }
        return Current;
    }


    public void PrintList()
    {            
        Node n = new Node();
        n = header;
        while (n != null)
        {
            Console.WriteLine(n.Element);
            n = n.Link;
        }
    }

    public void Add(object a)
    {
        Node n = new Node();
        n.Element = a;
        n.Link = null;
        if (last == null)
        {
            header = n;
            last = n;
        }
        else
        {
            last.Link = n;
            last = n;
        }
    }

    public void Addafter(object newitem, object After)
    {
        Node current = new Node();
        Node newNode = new Node(newitem);
        current = Find(After);

        newNode.Link = current.Link;
        current.Link = newNode;
    }
}
</code></pre>
