netoxa/Final/Class/AuthorClass.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace Final.Class
{
    internal class AuthorClass
    {
        public void Auth(string login, string password)
        {
            
            Goiman_A_AEntities db = new Goiman_A_AEntities();
            Win.ServiseWin serviseWin = new Win.ServiseWin();
            Win.UserWin usr = new Win.UserWin();    

            User user = db.User.FirstOrDefault(i => i.Login == login);
            
            if(user != null)
            {
                if(user.Login == login && user.Password == password)
                {
                    switch(user.Role_id)
                    {
                        case 1:
                            MessageBox.Show("Вы успешно вошли!");

                            serviseWin.Show();
                            break;
                        case 2:
                            MessageBox.Show("Вы успешно вошли!");
                            usr.Show();
                            break;
                    }
                }
                else
                {
                    MessageBox.Show("Неверно");
                }
            }
            else
            {
                MessageBox.Show("Нет польз");
            }
        }
    }
}