Managing treeview in asp.net

TreeView1.Nodes.Clear();


TreeNode ndHome = new TreeNode("Home", "Home", "~/closebox.png", "~/Home.aspx", "");
TreeNode ndSplitter = new TreeNode("Splitter", "Splitter", "~/closebox.png", "~/Splitter.aspx", "");
TreeNode ndCheckPage = new TreeNode("Check Page", "Check Page",
"~/closebox.png", "~/CheckPage.htm", "");
TreeNode ndSearch = new TreeNode("Search", "Search", "~/closebox.png", "~/Search.aspx", "");
TreeNode ndAdvancedSearch = new TreeNode("Advanced Search", "Advanced Search",
"~/closebox.png", "~/AdvancedSearch.aspx", "");
TreeNode ndTxtChk = new TreeNode("TextBox", "TextBox", "~/closebox.png", "~/TextCheck.aspx", "");
TreeNode ndLogout = new TreeNode("Logout", "Logout", "~/closebox.png", "~/Logout.aspx", "");
TreeNode ndExtra = new TreeNode("Extra", "Extra", "~/closebox.png", "#", "");
TreeView1.Nodes.Add(ndHome);
TreeView1.Nodes[0].ChildNodes.Add(ndCheckPage);
TreeView1.Nodes.Add(ndSplitter);
//TreeView1.Nodes[0].ChildNodes.Add(ndAdvancedSearch);
TreeView1.Nodes.Add(ndSearch);
TreeView1.Nodes[2].ChildNodes.Add(ndAdvancedSearch);
TreeView1.Nodes.Add(ndLogout);
TreeView1.Nodes.Add(ndExtra);
TreeView1.Nodes[4].ChildNodes.Add(ndTxtChk);