protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e) { //foreach (TreeNode node in TreeView1.Nodes) //{ // if (node.Selected == false) // node.Collapse(); //} DBConnection obj = new DBConnection(); if (TreeView1.SelectedNode.Value.Contains("region")) { string IDreg = TreeView1.SelectedNode.Value.Substring(6); DataTable dtRegion = new DataTable(); dtRegion = VADBCommander.CountriesByRegionList(IDreg); foreach (DataRow row1 in dtRegion.Rows) { if (TreeView1.SelectedNode.ChildNodes.Count < dtRegion.Rows.Count) { TreeView1.SelectedNode.ChildNodes.Add(new TreeNode(row1["country"].ToString(), "country" + row1["id"].ToString())); } } } if (TreeView1.SelectedNode.Value.Contains("country")) { string IDcon = TreeView1.SelectedNode.Value.Substring(7); DataTable dtCountry = new DataTable(); dtCountry = VADBCommander.StateProvinceByCountrySimpleList(IDcon); foreach (DataRow row2 in dtCountry.Rows) { if (TreeView1.SelectedNode.ChildNodes.Count < dtCountry.Rows.Count) { TreeView1.SelectedNode.ChildNodes.Add(new TreeNode(row2["stateprovince"].ToString(), "state" + row2["id"].ToString())); } } TreeView1.SelectedNode.ChildNodes.Add(new TreeNode("test")); } if (TreeView1.SelectedNode.Value.Contains("state")) { string IDstate = TreeView1.SelectedNode.Value.Substring(5); DataTable dtState = new DataTable(); dtState = VADBCommander.CityByStateList(IDstate); foreach (DataRow row3 in dtState.Rows) { string vState = TreeView1.SelectedNode.Parent.Text; string vCountry = TreeView1.SelectedNode.Parent.Parent.Text; string vCity = TreeView1.SelectedNode.Text; if (TreeView1.SelectedNode.ChildNodes.Count < dtState.Rows.Count) { TreeView1.SelectedNode.ChildNodes.Add(new TreeNode(row3["city"].ToString(), "city" + row3["id"].ToString(), "", "http://www.vacations-abroad.com/" + vCountry + "/" + vState + "/" + vCity + "/default.aspx", "")); } } // Response.Write(TreeView1.SelectedNode.Text + TreeView1.SelectedNode.ChildNodes.Count.ToString()); } if (TreeView1.SelectedNode.Expanded == false) { TreeView1.SelectedNode.Expand(); } else if (TreeView1.SelectedNode.Expanded == true) { TreeView1.SelectedNode.Collapse(); } TreeView1.SelectedNode.ExpandAll(); TreeView1.SelectedNode.Selected = false; obj.CloseConnection(); }