如何根据MVVM值过滤集合( CheckBox )

// 数据模型
public class DataModel
{
    public string Name { get; set; }
    public bool IsSelected { get; set; }
}

// 视图模型
public class ViewModel : INotifyPropertyChanged
{
    public ObservableCollection<DataModel> AllData { get; set; }
    public ObservableCollection<DataModel> FilteredData { get; set; }
    public bool IsChecked { get; set; }

    public ViewModel()
    {
        AllData = new ObservableCollection<DataModel>();
        FilteredData = new ObservableCollection<DataModel>();
        IsChecked = false;
    }

    public void FilterData(bool isChecked)
    {
        FilteredData.Clear();
        foreach (var data in AllData)
        {
            if (isChecked && data.IsSelected)
            {
                FilteredData.Add(data);
            }
            else if (!isChecked && !data.IsSelected)
            {
                FilteredData.Add(data);
            }
        }
    }

    // 实现INotifyPropertyChanged接口，用于通知视图更新属性值
    public event PropertyChangedEventHandler PropertyChanged;
    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

// 在视图中使用ViewModel
public partial class MainWindow : Window
{
    private ViewModel viewModel;

    public MainWindow()
    {
        InitializeComponent();
        viewModel = new ViewModel();
        DataContext = viewModel;
    }

    private void CheckBox_Checked(object sender, RoutedEventArgs e)
    {
        viewModel.FilterData(viewModel.IsChecked);
    }
}