public NoteToolsViewModel(PianoRollViewModel vm) { ViewModel = vm ?? throw new ArgumentNullException(nameof(vm)); if (ViewModel.SelectedItems.Count() != 0) { OrderByStart(ViewModel.SelectedItems.Cast <NoteViewModel>()); } else { OrderByStart(ViewModel.Notes); } }
public ChopperViewModel(PianoRollViewModel vm) : base(vm) { }