Doubly linked list C#

Hi,

I want to sort 2 listboxes with DLL i have came to this part but i have no idea how to make the second node, and how to implement it into the buttonsort. I have searched for hours and hours for a solution but i can't find it.

Maybe you guys can help me on my way.

Many thanxs,
Damion

namespace DLL
{
    class cS
    {
        private static cS v, m;

        private  cS L;
        private int w;
        private cS R;

        private static cS[] car;

        //constructor
        private cS(cS pL,int v, cS pR)
        {
            L = pL;
            w = v;
            R = pR;
        }

        public static int[] mDLL(int[] iar)
        {
            //make first node
            car[0] = new cS(null, iar[0], null);
            v = car[0]; m = v;
            car[1] = new cS(null, iar[0], null);
            if (iar[1] <= iar[0])
            {
                //before
                car[0].L = car[1];
                car[1].R = car[0];
                v = car[1];
            }
            else 
            {
                //back
                car[0].R = car[1];
                car[1].L = car[0];
            }

            for (int i = 2; i < n; i++)
            {
                car[i] = new cS(null, iar[i], null);
                m=v;
                while (car[i].w > m.w)
                {
                    if (m.R != null)
                    {
                        m = m.R;
                    }
                    else
                    {
 
                    }
                }

            }
            return iar;
        }      

    }
}

///FORM

        private void buttonsort_Click(object sender, EventArgs e)
        {
            int n=10;
            int[] iar=new int[n];
            Random r = new Random();
            for (int i =0 ; i<n; i++)
            {
                iar[i] = r.Next(0, 20);
                lbU.Items.Add(iar[i]);
            }
            iar = cS.mDLL(iar);
            for (int i = 0; i < n; i++)
            {
                lbS.Items.Add(iar[i]);
            }