<ItemsControl Grid.Row="1" ItemsSource="{Binding person_listView}">
                <ItemsControl.ItemTemplate >
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal"  >
                            
                            <Button Width="30"
                                    Command="{Binding  DataContext.add_to_visualCommand, 
                                    RelativeSource ={RelativeSource Mode=FindAncestor, 
                                    AncestorType={x:Type local:BaseView}}}"         
                                    CommandParameter="{Binding}"   />
                            <TextBlock Text="{Binding F}"/>
                            
                        </StackPanel>
                    </DataTemplate>
                </ItemsControl.ItemTemplate>                 
            </ItemsControl>

  public class person : BaseViewModel, IEquatable<person>, IComparable<person>

   public  class ViewModel : BaseViewModel
    {

        public ICollectionView person_listView { get; set; }

        //нужно для получения списка  person
        private DataStore ds => Ioc.Get<DataStore>();
        public ObservableCollection<person> person_list => ds.person_list;


        public ViewModel()
        {
            person_listView = CollectionViewSource.GetDefaultView(ds.person_list);
        }

        //     Command="{Binding  DataContext.add_to_visualCommand
        private async void add_to_visual(object parameter)
        {

            person p;

            if (parameter is person)
                p = parameter as person;
            else
                return;

            person PersonFromStore = ds.person_list.Where(k => k.Equals(p)).FirstOrDefault();

            System.Diagnostics.Debug.WriteLine(p.GetHashCode());
            System.Diagnostics.Debug.WriteLine(PersonFromStore.GetHashCode());

        }
    }

  person_listView = CollectionViewSource.GetDefaultView(ds.person_list);
     public ICollectionView person_listView { get; set; }