如何将IsChecked绑定到ViewModel子类

private bool _isChecked;
public bool IsChecked
{
    get { return _isChecked; }
    set
    {
        _isChecked = value;
        OnPropertyChanged(nameof(IsChecked)); // 触发属性变化通知
    }
}

<CheckBox IsChecked="{Binding ViewModel.IsChecked, Mode=TwoWay}" />

public MyPage()
{
    InitializeComponent();
    DataContext = new MyViewModel();
}

public class MyViewModel : INotifyPropertyChanged
{
    // ...

    public event PropertyChangedEventHandler PropertyChanged;

    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}