C # application of the Treeview Control

Using system;
Using system. Collections. Generic;
Using system. componentmodel;
Using system. Data;
Using system. drawing;
Using system. text;
Using system. Windows. forms;

Namespace Treeview
{
Public partial class frmtreeview: Form
{
Public frmtreeview ()
{
Initializecomponent ();
}

Private void btnadd_click (Object sender, eventargs E)
{
Treenode Tn = new treenode (); // New Class
Tn. Text = "show new node"; // text displayed on the node
Treeview1.nodes. Add (TN); // Add a node

}

private void btnaddb_click (Object sender, eventargs E)
{< br> treenode Tn = new treenode (); // new class
tn. TEXT = "show new subnodes"; // text displayed on the subnode
treeview1.nodes [0]. nodes. add (TN); // Add a subpoint
}

private void btnaddbb_click (Object sender, eventargs E)
{< br> treenode Tn = new treenode (); // new class
tn. TEXT = "show new nodes"; // text displayed on the node
treeview1.nodes [0]. nodes [1]. nodes. add (TN); // Add a node
}

private void button2_click (Object sender, eventargs E)
{< br> treenode Tn = new treenode (); // new class
tn. TEXT = "show new nodes"; // text displayed on the node
treeview1.selectednode. nodes. add (TN); // select any node to add
}

Private void button#click (Object sender, eventargs E)
{
Treenode Tn = new treenode (); // New Class
Tn. Text = "show new node"; // text displayed on the node
Treeview1.selectednode. Parent. nodes. Add (TN); // Add peer nodes

}

private void frmtreeview_load (Object sender, eventargs E)
{< br> treenode Tn = new treenode ();
tn. TEXT = "trunk";
treeview1.nodes. add (TN);
}< BR >}