Code
 private static void DataBindTreeview(TreeNode node, string value)
        {
         
            TreeNode child;
           for (int i = 0; i < rows.Length; i++)
            {
                child = new TreeNode();
                child.Target = rows[i][3].ToString();
                child.Text = rows[i][1].ToString();
                child.Value = rows[i][0].ToString();
                child.ImageUrl = rows[i][6].ToString();

                DataBindTreeview(child, child.Value);

                child.Expanded = rows[i][5].ToString()=="1"?true:false;
                node.ChildNodes.Add(child);
            }

        }