Disposable View-Models and Services

MasterDetailViewModel.cs

public abstract class MasterDetailViewModel<TItemViewModel, TItem> : ViewModelBase, IDisposable where TItemViewModel : IItemViewModel<TItem> where TItem : class
{
  public MasterDetailViewModel(
    IItemsService<TItem> itemsService, 
    IItemToViewModelMap<TItem, TItemViewModel> viewModelMap, 
    IShowProgressInfo showProgressInfo, 
    ILoggerFactory loggerFactory)
	  : base(showProgressInfo)
  {
    //...
    _itemsService.SelectedItemChanged += ItemsService_SelectedItemChanged;
    _itemsService.PropertyChanged += ItemsService_PropertyChanged;
    //...
  }

  public virtual void Dispose()
  {
    _itemsService.SelectedItemChanged -= ItemsService_SelectedItemChanged;
    _itemsService.PropertyChanged -= ItemsService_PropertyChanged;
  }
}