YeahFishyFishy/TrainingBeforeExams/Auth.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace TrainingBeforeExams
{
    /// <summary>
    /// Interaction logic for Auth.xaml
    /// </summary>
     
    public partial class Auth : Window
    {
        testEntities entity;
        public Auth()
        {
           InitializeComponent();
           entity = new testEntities();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            if(string.IsNullOrWhiteSpace(loginBox.Text) || string.IsNullOrWhiteSpace(passBox.Text))
            {
                MessageBox.Show("Поля не заполнены.");
                return;
            }
            if (entity.User.Select(x => x.Login + "" + x.Password).Contains(loginBox.Text + "" + passBox.Text))
            {
                var id = entity.User.Where(x => x.Login == loginBox.Text).Select(x => x.IdUser).FirstOrDefault();
                var role = entity.User.Where(x => x.Login == loginBox.Text).Select(x => x.RoleID).FirstOrDefault();
                if(role == 1)
                {
                    WaiterWindow waiterWindow = new WaiterWindow(loginBox.Text, id);
                    waiterWindow.Show();
                    this.Hide();
                }
                if(role == 2)
                {
                    CookerWindow cookerWindow = new CookerWindow();
                    cookerWindow.Show();
                    this.Hide();
                }
                if(role == 3)
                {
                    MainWindow mainWindow = new MainWindow();
                    mainWindow.Show();
                    this.Hide();
                }
            }
            else
            {
                MessageBox.Show("Логин или пароль не совпадают.");
                return;
            }
        }
    }
}