Algorithms

for (int i = 0; i < l; i++)
{
    string[] new_ex = new string[11];
    new_ex[0] = ThreadSafeRandom.ThisThreadsRandom.Next(60)%5 == 1 ? "true" : "false";
    for (int r = 1; r < 5; r++)
        new_ex[r] = (ThreadSafeRandom.ThisThreadsRandom.Next(60)%3).ToString();
    for (int r = 5; r < 7; r++)
        new_ex[r] = (ThreadSafeRandom.ThisThreadsRandom.Next(60)%3).ToString();
    for (int r = 7; r < 9; r++)
        new_ex[r] = (ThreadSafeRandom.ThisThreadsRandom.Next(20)%5).ToString();
    for (int r = 9; r < 11; r++)
        new_ex[r] = (ThreadSafeRandom.ThisThreadsRandom.Next(4)).ToString();
    dataset.Add(new_ex);
}

public class Tree{
    private int tree_height;
    private int tree_width;
    private int nodes_count;
    private List<Node> tree_nodes;}

public class Node{
    //private
    private object state;
    private int ordering;
    private int height;
    private int parent;}

public void AddBranch(Tree branch, int node_num)
{
    if (nodes_count >= node_num && node_num > 0)
    {
        int last_el_ordering = nodes_count,
            first_parent_height = tree_nodes[node_num - 1].Height,
            first_parent_ordering = tree_nodes[node_num - 1].Ordering;
        tree_nodes.Add(new Node(branch.Tree_nodes.First().State, last_el_ordering + 1, first_parent_ordering, first_parent_height + 1));
        foreach (Node el in branch.Tree_nodes.Skip(1))
            tree_nodes.Add(new Node(el.State, el.Ordering + last_el_ordering, el.Parent + last_el_ordering, el.Height + first_parent_height));
        tree_nodes = tree_nodes.OrderBy(match => match.Height).ToList();
        int i = 1;
        foreach (Node el in tree_nodes)
        {
            List<Node> temp = tree_nodes.ToList().FindAll(match => match.Parent == el.Ordering).ToList();
            el.Ordering = i++;
            if (temp.Count() > 0)
                foreach (Node el2 in temp)
                    el2.Parent = el.Ordering;
        }
    }
}

Tree testing_tree1 = new Tree(new Node("start"));
List<string> temp = new List<string> { "a", "b", "c" };
foreach(string el in temp)
    testing_tree1.AddBranch(new Tree(new Node(el)),1);
for (int i = 0; i < 3; i++)
   testing_tree1.AddBranch(new Tree(new Node("false")), i+2);
Tree testing_tree2 = new Tree(new Node("d"));
testing_tree2.AddBranch(new Tree(new Node("false")), 1);
testing_tree1.AddBranch(testing_tree2, 1);
testing_tree1.DisplayTree();
Console.Read();