avtoservis/Servise/Forms/Avtorization.cs

using Servise.Classes;
using Servise.Forms;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Servise
{
    public partial class Form1 : Form
    {
        DataBase conect = new DataBase();
        public Form1()
        {
            InitializeComponent();
        }

        private void Avtorization_Click(object sender, EventArgs e)
        {
            string query = "Select *from employees where login = '" + Login.Text.Trim() + "' and password = '" + Password.Text.Trim() + "'";
            SqlDataAdapter sda = new SqlDataAdapter(query, conect.getConect());
            DataTable dtbl = new DataTable();
            sda.Fill(dtbl);
            if (dtbl.Rows.Count == 1)
            {
                UserInform.Login = Login.Text.Trim();
                UserInform.Password = Password.Text.Trim();
                if (Login.Text.Trim() == "admin")
                {
                    UserInform.AdminLi = true;
                }
                this.Hide();
                Main goMain = new Main();
                goMain.Show();
            }
            else
            {
                MessageBox.Show("Неверный логин и/или пароль");
            }
        }
        private void FomClose(object sender, FormClosedEventArgs e)
        {
            Application.Exit();
        }
    }
}