Default3.aspx--------------<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" Debug="true" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server"><title>Untitled Page</title><style type="text/css">.menuItem{font-family: Verdana, Arial, Helvetica, sans-serif;font-size: 11px;color: #000000;border: 1px solid #C8B678;color: #806000;background-color: #FFF7DD;padding: 4px 5px 4px 5px;}.menuHover{color: #EEEBE6;border: 1px Solid #C8B678;background-color: #A47E00;padding: 4px 5px 4px 5px;text-decoration: none;}</style></head><body><form id="form1" runat="server"><div><asp:Menu Width="165px" ID="Menu1" StaticMenuItemStyle-CssClass="menuItem" StaticHoverStyle-CssClass="menuHover"DynamicHoverStyle-CssClass="menuHover" DynamicMenuItemStyle-CssClass="menuItem"runat="server"><StaticItemTemplate><%# Eval("Text") %><asp:Label runat="server" ID="lbItmCount">[<%#Eval("ChildItems.Count")%>]</asp:Label></StaticItemTemplate></asp:Menu></div></form></body></html>Default3.aspx.cs------------------using Microsoft.VisualBasic;using System;using System.Collections;using System.Collections.Generic;using System.Data;using System.Diagnostics;using System.Web.Configuration;using System.Data.SqlClient;using System.Web.UI.WebControls;partial class Default3 : System.Web.UI.Page{public Default3(){Load += Page_Load;}protected void Page_Load(object sender, System.EventArgs e){if (!Page.IsPostBack){BindMenu();}}public void BindMenu(){string connectionString = WebConfigurationManager.ConnectionStrings["DatabaseConnectionString1"].ConnectionString;SqlConnection con = new SqlConnection(connectionString);SqlDataAdapter dadCategories = new SqlDataAdapter("SELECT CatId,CatName FROM Category order by CatName", con);SqlDataAdapter dadSubCat = new SqlDataAdapter("SELECT SubCatId,CatId,SubCatName FROM SubCategory order by SubCatName", con);// Add the DataTables to the DataSetDataSet dsCat = new DataSet();using (con){con.Open();dadCategories.Fill(dsCat, "Category");dadSubCat.Fill(dsCat, "SubCategory");}// Add a DataRelationdsCat.Relations.Add("Children", dsCat.Tables["Category"].Columns["CatId"], dsCat.Tables["SubCategory"].Columns["CatId"]);// Add the Category nodesint count = 0;foreach (DataRow categoryRow in dsCat.Tables["Category"].Rows){MenuItem mNode = new MenuItem(Convert.ToString(categoryRow["CatName"]), "", "", "~/DetailView.aspx?CatID=" + Convert.ToString(categoryRow["CatId"]), "_parent");Menu1.Items.Add(mNode);// Get matching Sub CategoryDataRow[] subCatRows = categoryRow.GetChildRows("Children");foreach (DataRow row in subCatRows){string subCatName = Convert.ToString(row["SubCatName"]);MenuItem subCatItems = new MenuItem(subCatName, "", "", "~/DetailView.aspx?CatID=" + Convert.ToString(row["CatId"]) + "&SubCatID=" + Convert.ToString(row["SubCatId"]), "_parent");Menu1.Items[count].ChildItems.Add(subCatItems);}count = count + 1;}}}
DetailView.aspx------------------<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DetailView.aspx.cs" Inherits="DetailView" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server"><title>Untitled Page</title></head><body><form id="form1" runat="server"><div>You have selected<br />Category ID : <asp:Label ID="lbCatID" runat="server" Text="ID Not Specified!"></asp:Label><br />Sub Category ID : <asp:Label ID="lbSubCatID" runat="server" Text="ID Not Specified!"></asp:Label><br /><br />Back to the previous page <a href="Default.aspx">Default.aspx</a></div></form></body></html><%@ Page Language="C#" AutoEventWireup="true" CodeFile="DetailView.aspx.cs" Inherits="DetailView" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head id="Head1" runat="server"><title>Untitled Page</title></head><body><form id="form1" runat="server"><div>You have selected<br />Category ID : <asp:Label ID="lbCatID" runat="server" Text="ID Not Specified!"></asp:Label><br />Sub Category ID : <asp:Label ID="lbSubCatID" runat="server" Text="ID Not Specified!"></asp:Label><br /><br />Back to the previous page <a href="Default.aspx">Default.aspx</a></div></form></body></html>DetailView.aspx.cs---------------------using System;using System.Collections;using System.Collections.Generic;using System.Data;using System.Diagnostics;public partial class DetailView : System.Web.UI.Page{protected void Page_Load(object sender, System.EventArgs e){if ((Request.QueryString["CatId"] != null)){lbCatID.Text = Request.QueryString["CatId"];}if ((Request.QueryString["SubCatId"] != null)){lbSubCatID.Text = Request.QueryString["SubCatId"];}}public DetailView(){Load += Page_Load;}}
output:
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