using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Diagnostics;

namespace Form1
{
    public partial class Form1 : Form
    {
        private TextBox txtPassword;
        private TextBox txtUsername;
        public string Username { get; set; }

        public string Password { get; set; }
        public Form1(string user, string pass)
        {
            this.InitializeComponent();

        }
        private void PlJcEasmpb(object sender, EventArgs e)
        {
            this.Username = this.txtUsername.Text;
            this.Password = this.txtPassword.Text;
            this.Close();
        }
        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            var client = new WebClient();
            StreamReader reader = new StreamReader(new WebClient().OpenRead("http://website.com/login.php?user=" + this.Username + "&pass=" + this.Password));
            string status = reader.ReadToEnd();
            if (status == "ok")
            {
                // đăng nhập thành công
            }
            else
            {
                // sai tài khoản hoặc mật khẩu
            }
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }
    }
}