选中WPF中的全选复选框不会更改列表框中的其他复选框

<CheckBox x:Name="selectAllCheckBox" Content="全选" IsChecked="{Binding IsAllSelected}"/>
<ListBox x:Name="listBox">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <CheckBox Content="{Binding Name}" IsChecked="{Binding IsSelected}"/>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

public class ViewModel : INotifyPropertyChanged
{
    private bool _isAllSelected;
    public bool IsAllSelected
    {
        get { return _isAllSelected; }
        set
        {
            _isAllSelected = value;
            // 更新列表中所有复选框的选中状态
            foreach (var item in Items)
            {
                item.IsSelected = value;
            }
            OnPropertyChanged(nameof(IsAllSelected));
        }
    }

    public ObservableCollection<Item> Items { get; set; }

    public ViewModel()
    {
        Items = new ObservableCollection<Item>
        {
            new Item { Name = "Item 1" },
            new Item { Name = "Item 2" },
            new Item { Name = "Item 3" }
            // 添加更多的列表项
        };
    }

    // INotifyPropertyChanged接口的实现代码
    // ...
}

public class Item : INotifyPropertyChanged
{
    private bool _isSelected;
    public bool IsSelected
    {
        get { return _isSelected; }
        set
        {
            _isSelected = value;
            OnPropertyChanged(nameof(IsSelected));
        }
    }

    public string Name { get; set; }

    // INotifyPropertyChanged接口的实现代码
    // ...
}