private async void OnOpenSongDetailView(int?songId)
{
if (SongDetailViewModel != null && SongDetailViewModel.HasChanges)
{
var result = MessageBox.Show("You've made changes. Navigate away?", "Question", MessageBoxButton.OKCancel);
if (result == MessageBoxResult.Cancel)
{
return;
}
}
SongDetailViewModel = _songDetailViewModelCreator();
await SongDetailViewModel.LoadAsync(songId);
}
private void AfterSongDeleted(int songId)
{
SongDetailViewModel = null;
}