Untitled

using System.Windows;
using System.Windows.Controls;
using Airline_Reservation_System.ViewModels;

namespace Airline_Reservation_System.Views
{
    public partial class RegistrationWindow : Window
    {
        private readonly RegistrationViewModel _viewModel;

        public RegistrationWindow()
        {
            InitializeComponent();
            _viewModel = new RegistrationViewModel();
            DataContext = _viewModel;
        }

        private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
        {
            if (_viewModel != null)
            {
                _viewModel.Password = PasswordBox.Password;
                ValidatePasswords();
            }
        }

        private void ConfirmPasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
        {
            ValidatePasswords();
        }

        private void ValidatePasswords()
        {
            if (PasswordBox.Password != ConfirmPasswordBox.Password)
            {
                _viewModel.ErrorMessage = "Passwords do not match.";
            }
            else
            {
                _viewModel.ErrorMessage = string.Empty;
            }
        }
    }
}