public AllAnnouncementViewModel()
{
var announcements = getAnnouncements().ToList();
Announcements.Clear();
foreach (Announcement a in announcements)
{
a.BitmapImage = LoadPhoto(a.seller.Value);
Announcements.Add(a);
}
tmpCategories = announcementRepository.getCategories().Distinct().ToList();
tmpSellers = userRepository.getAllNames().Distinct().ToList();
tmpRegions = regionRepository.getRegions();
SelectedIndex = 0;
Info = $"Найдено {Announcements.Count}";
MAX_COST = announcementRepository.MaxCost();
MaxCost = MAX_COST.ToString();
viewWindow = new ViewWindow(this);
viewWindow.Visibility = System.Windows.Visibility.Hidden;
}