private void LogInButton2Clicked(object sender, RoutedEventArgs e)
        {
            LogInWindow logInWindow = new LogInWindow(2);

            logInWindow.ShowDialog();
            if (logInWindow.DialogResult.HasValue && logInWindow.DialogResult.Value == true)
            {
            }
        }
        private void LogInButton3Clicked(object sender, RoutedEventArgs e)
        {
            LogInWindow logInWindow = new LogInWindow(1);

            logInWindow.ShowDialog();
            if (logInWindow.DialogResult.HasValue && logInWindow.DialogResult.Value == true)
            {
                AdministatorMDIPanel administratorMDIPanel = new AdministatorMDIPanel();
                administratorMDIPanel.Show();
            }
        }