asp net编写的网上购物商城

Login.aspx.cs

using System;

using System.Collections.Generic; using System.Linq; using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls; using System.Data;

using System.Data.SqlClient;

public partial class login : System.Web.UI.Page {

protected void Page_Load(object sender, EventArgs e) {

SqlConnection Conn;

Conn = new SqlConnection(\Security=True\);

//Windows身份验证

if (!IsPostBack) {

Random randobj = new Random();

labCode.Text = randobj.Next(1000, 10000).ToString();//返回一个指定范围内的随机数(int) } }

protected void btnLogin_Click(object sender, EventArgs e) {

SqlConnection sqlconn;

sqlconn = new SqlConnection(\Security=True\); sqlconn.Open();

string sql = \; SqlCommand Comm = new SqlCommand(sql, sqlconn); Comm.Parameters.Add(\, txtMName.Text); Comm.Parameters.Add(\, txtMPwd.Text); SqlDataReader sdr = Comm.ExecuteReader(); if (txtMCode.Text.Trim() == labCode.Text.Trim()) {

if (sdr.Read()) {

Session[\] = txtMName.Text; if (Session[\].ToString() != \) Response.Redirect(\); else

Response.Redirect(\); } else {