ClearTest/WpfApp1/pgUpdateHotel.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.Navigation;
using System.Windows.Shapes;

namespace WpfApp1
{
    /// <summary>
    /// Логика взаимодействия для pgUpdateHotel.xaml
    /// </summary>
    public partial class pgUpdateHotel : Page
    {
        Hotel hotel;
        public pgUpdateHotel(int id)
        {
            InitializeComponent();
            hotel = BaseConnect.BaseModel.Hotel.FirstOrDefault(x => x.Id == id);
            DataContext = hotel;
            Country country = BaseConnect.BaseModel.Country.FirstOrDefault(x => x.Code == hotel.CountryCode);
            List<Country> countryList = BaseConnect.BaseModel.Country.Where(x => x.Code != hotel.CountryCode).ToList();
            countryList.Insert(0, country);
            cbCountry.ItemsSource = countryList;
            cbCountry.SelectedValuePath = "Code";
            cbCountry.DisplayMemberPath = "Name";
            cbCountry.SelectedIndex = 0;
        }

        private void btnSave_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                if (Convert.ToInt32(tbStars.Text) <= 5 && Convert.ToInt32(tbStars.Text) >= 0)
                    BaseConnect.BaseModel.SaveChanges();
                else
                    MessageBox.Show("sasa");
            }
            catch
            {
                MessageBox.Show("sasa");
            }
        }

        private void cbCountry_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            hotel.CountryCode = (string)cbCountry.SelectedValue;
        }
    }
}