private void EditNotification_Click(object sender, RoutedEventArgs e)
{
if (NotificationListView.SelectedItem != null && ((Notification)NotificationListView.SelectedItem).Recipients.Contains("ALL_USERS"))
{
Notification initialNotification = _notificationController.GetOne(((Notification)NotificationListView.SelectedItem).ID);
EditNotificationWindow window = new EditNotificationWindow(this, initialNotification);
window.Show();
}
}