private void AddButton_Click(object sender, RoutedEventArgs e)
{
if (StationsList.SelectedItem == null)
{
MessageBox.Show("Any station was not chosen!");
return;
}
if (!_repo.IsFavouriteStationUnique(_user, (Station)StationsList.SelectedItem))
{
MessageBox.Show("Such station is already in your favourites list!");
return;
}
_repo.AddFavourite(_user, (Station)StationsList.SelectedItem, DescriptionTexBox.Text);
DialogResult = true;
}
