是否可以'刷新'WPF数据绑定

public class ViewModel : INotifyPropertyChanged
{
    private string _name;
    public string Name
    {
        get { return _name; }
        set
        {
            _name = value;
            OnPropertyChanged("Name");
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

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

public class ViewModel
{
    public ObservableCollection<string> Items { get; set; }
}

<TextBlock Text="{Binding Name, TargetNullValue='(null)', FallbackValue='(error)'}" />

var bindingExpression = BindingOperations.GetBindingExpression(targetObject, targetProperty);
bindingExpression?.UpdateTarget();