private void BackBtn_Click(object sender, RoutedEventArgs e)
        {
            TransitWindow transitWindow = new TransitWindow();

            Close();
            transitWindow.Show();
        }
        private async void AuthorisationBtn_click(object sender, RoutedEventArgs e)
        {
            using (var UDContext = new UserDataContext())
            {
                UserData user          = new UserData(ID++, LoginTextBox.Text, PasswordTextBox.Password.GetHashCode());
                bool     queryResLogin = await UDContext.userDatas.AnyAsync(x => x.Login == user.Login);

                bool queryResPassword = await UDContext.userDatas.AnyAsync(y => y.PasswordHashCode == user.PasswordHashCode);

                if (queryResLogin && queryResPassword)
                {
                    TransitWindow transitWindow = new TransitWindow();
                    Close();
                    transitWindow.Show();
                }
                else
                {
                    MessageBox.Show("Ошибка аутентификации. Неверный логин или пароль");
                }
            }
        }