adminlogin.aspx.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 adminlogin : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["admin"].ToString() == "")
        {

            Panel3.Visible = true;

            Panel4.Visible = false;
        }
        else
        {

            Panel3.Visible = false;

            Panel4.Visible = true;
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string admin = TextBox1.Text;
        string password = TextBox2.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 admin_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 = "admin ='" + admin + "'AND password = '" + admin + "'";
            if (dv.Count > 0)
            {
                Session["admin"] = admin;
                Session["password"] = password;

                Response.Redirect("Default.aspx");
            }
        }
        catch (Exception eee)
        {
            ;
        }
        finally
        {
            conn.Close();
        }
    }
}