masterpage.master.cs

电脑用户登录注册系统

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.Data.OleDb;


public partial class MasterPage : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {

        if (Session["Username"].ToString() == "")
        {

            Panel1.Visible = true;

            Panel2.Visible = false;
        }
        else
        {

            Panel1.Visible = false;

            Panel2.Visible = true;
        }
        
    }
    protected void btnLogin_Click(object sender, EventArgs e)
    {

        string Username = txtName.Text;
        string Password = txtPwd.Text;

        string connStr = @"Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + Server.MapPath("./App_Data") + @"/user.mdb";
        OleDbConnection conn = new OleDbConnection();
        conn.ConnectionString = connStr;
        string sql;
        sql = "Select * from user_Table";
        try
        {
            conn.Open();
            OleDbDataAdapter dbadapter = new OleDbDataAdapter(sql, conn);
            DataSet dataset = new DataSet();
            dbadapter.Fill(dataset);
            DataView dv = new DataView(dataset.Tables[0]);
            dv.RowFilter = "Username ='" + Username + "'AND password = '" + Password + "'";
            if (dv.Count > 0)
            {
                Session["Username"] = Username;
                Session["Password"] = Password;
                Session["Email"] = dv[0]["email"].ToString();
                Response.Redirect("Default.aspx");
            }
        }
        catch (Exception ee)
        {
            ;
        }
        finally
        {
            conn.Close();
        }
    }
   
}