90 lines
2.8 KiB
C#
90 lines
2.8 KiB
C#
// ВАЖНО: Подключаем библиотеку MySQL, а не SQL Server!
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using MySql.Data.MySqlClient;
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using System;
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using System.Windows.Forms;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Data.SqlClient;
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using fsh;
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namespace _fsh
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{
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public partial class Form1 : Form
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{
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public Form1()
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{
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InitializeComponent();
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}
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private void btAutorization_Click(object sender, EventArgs e)
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{
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}
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private void Form1_Load(object sender, EventArgs e)
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{
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}
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private void label3_Click(object sender, EventArgs e)
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{
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Registration Registration = new Registration();
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Registration.Show();
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this.Hide();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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string login = textBox1.Text;
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string password = textBox2.Text;
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if (string.IsNullOrWhiteSpace(login) || string.IsNullOrWhiteSpace(password))
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{
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MessageBox.Show("Введите логин и пароль");
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return;
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}
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string connectionString = "Server=cfif31.ru; port=3306; Database=ISPr25-21_KorotinDV_37; username=ISPr25-21_KorotinDV; password=ISPr25-21_KorotinDV; Sslmode=none";
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string query = "SELECT * FROM librarians WHERE login = @login AND pass = @pass";
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try
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{
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using (MySqlConnection conn = new MySqlConnection(connectionString))
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{
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conn.Open();
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@login", login);
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cmd.Parameters.AddWithValue("@pass", password);
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object result = cmd.ExecuteScalar();
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if (result != null && Convert.ToInt32(result) > 0)
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{
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MessageBox.Show("Успешно!", "Победа", MessageBoxButtons.OK, MessageBoxIcon.Information);
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MainForm mainForm = new MainForm();
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mainForm.Show();
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this.Hide();
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}
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else
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{
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MessageBox.Show("Неверный логин или пароль", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show("Ошибка: " + ex.Message, "Критическая ошибка");
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}
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}
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}
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}
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