如何使用多虚拟机模式通知所有ViewModels一个ViewModel在模型类的属性中所做的更改

// 数据模型类
public class DataModel
{
    // 需要被监视的属性
    private string _property;
    public string Property
    {
        get { return _property; }
        set
        {
            _property = value;
            OnPropertyChanged(nameof(Property));
        }
    }

    // 属性变化事件
    public event EventHandler PropertyChanged;

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

// ViewModel1
public class ViewModel1
{
    private DataModel _dataModel;

    public ViewModel1(DataModel dataModel)
    {
        _dataModel = dataModel;
        _dataModel.PropertyChanged += DataModel_PropertyChanged;
    }

    private void DataModel_PropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        if (e.PropertyName == nameof(DataModel.Property))
        {
            // 执行相应的操作
        }
    }
}

// ViewModel2
public class ViewModel2
{
    private DataModel _dataModel;

    public ViewModel2(DataModel dataModel)
    {
        _dataModel = dataModel;
        _dataModel.PropertyChanged += DataModel_PropertyChanged;
    }

    private void DataModel_PropertyChanged(object sender, PropertyChangedEventArgs e)
    {
        if (e.PropertyName == nameof(DataModel.Property))
        {
            // 执行相应的操作
        }
    }
}

// 在应用程序中创建DataModel实例和ViewModel实例，并将它们关联起来
DataModel dataModel = new DataModel();
ViewModel1 viewModel1 = new ViewModel1(dataModel);
ViewModel2 viewModel2 = new ViewModel2(dataModel);

// 当DataModel的Property属性发生变化时，ViewModel1和ViewModel2会收到通知并执行相应的操作
dataModel.Property = "New Value";