protected void Page_Load(object sender, EventArgs e) { //TreeNode PNode = new TreeNode(); //PNode.Text = "Root1"; //PNode.Value = "2"; //PNode.NavigateUrl = "~/About.aspx"; //TreeNode c1 = new TreeNode(); //c1.Text = "Tr1"; //c1.Value = "1"; //c1.NavigateUrl = "~/About.aspx"; //TreeNode c2 = new TreeNode(); //c2.Text = "Tr1"; //c2.Value = "1"; //c2.NavigateUrl="~/About.aspx"; //c1.ChildNodes.Add(c2); //PNode.ChildNodes.Add(c1); //this.ApplicationObjects.Nodes.Add(PNode); //PNode = new TreeNode(); //PNode.Text = "Root2"; //PNode.Value = "2"; //c1 = new TreeNode(); //c1.Text = "Tr2"; //c1.Value = "1"; //c2 = new TreeNode(); //c2.Text = "Tr2"; //c2.Value = "1"; //c2.NavigateUrl = "~/About1.aspx"; //c1.ChildNodes.Add(c2); //PNode.ChildNodes.Add(c1); //this.ApplicationObjects.Nodes.Add(PNode); //ApplicationObjects.CollapseAll(); //case 2 for (int i = 0; i <= 5; i++) { TreeNode node = new TreeNode(); node.Text = "Troot" + i; node.Value = "1"; ApplicationObjects.Nodes.Add(node); for (int j = 0; j <= 3; j++) { TreeNode node1 = new TreeNode(); node1.Text = "Tchild" + j; node1.Value = "1"; node1.NavigateUrl = "~/About.aspx"; if (j == 2) { TreeNode node2 = new TreeNode(); node2.Text = "Tchild_" + j; node2.Value = "1"; node2.NavigateUrl = "~/Default.aspx"; node1.ChildNodes.Add(node2); } node.ChildNodes.Add(node1); } } ApplicationObjects.CollapseAll(); }