Linq:基于属性获取我的所有子对象

所以我有这些课程:

public class Product
{
    public string Name { get; set; }
    public List<Application> Applications { get; set; }
}  


public class Application
{
    public string Name { get; set; }
    public string Mode { get; set; }
    public List<Folder> Folders { get; set; }
 }


public class Folder
{
    public string Name { get; set; }

    public bool IsSelected{ get; set; }

    public FileInfo[] Tests { get; set; }
}

我有这个 ObservableCollection 收藏:

private ObservableCollection<Product> products;

public ObservableCollection<Product> Products
{
    get { return products; }
    set
    {
        products = value;
        NotifyPropertyChanged();
    }
}

我的 ListView 有这个 CheckBox 改变了这个文件夹 IsSelected 属性,我希望通过 Linq :

var selectedFolders = Products.Where(x => x.Applications = ...);

有隔离吗?