C#：Caliburn Micro：如何使用数据绑定控制 WPF 按钮的属性？

Question

当用户按下按钮时，我希望该按钮消失并由确认按钮代替。下面的代码是我认为会使按钮消失的代码，但是当我单击按钮时，什么也没有发生。 DeleteButton() 方法使用 Caliburn Micro 约定正确连接到 XAML。如何从 ViewModel 控制按钮的可见性或任何其他属性？谢谢。

XAML：

<Button x:Name="DeleteButton" Visibility="{Binding DeleteButtonVisibility}"/>

视图模型：

    bool _deleteButtonVisibility = true;

    public bool DeleteButtonVisibility
    {
        get { return _deleteButtonVisibility; }
        set
        {
            _deleteButtonVisibility = value;
            NotifyOfPropertyChange(() => DeleteButtonVisibility);
        }
    }

    public void DeleteButton()
    {
        DeleteButtonVisibility = false;
    }

Answer 1

可见性不是布尔值，它是System.Windows.Visibility

• https://docs.microsoft.com/en-us/dotnet/api/system.windows.uielement.visibility?view=netcore-3.1

试试这个：

    Visibility _deleteButtonVisibility = Visibility.Visible;

    public Visibility DeleteButtonVisibility
    {
        get { return _deleteButtonVisibility; }
        set
        {
            _deleteButtonVisibility = value;
            NotifyOfPropertyChange(() => DeleteButtonVisibility);
        }
    }

    public void DeleteButton()
    {
        DeleteButtonVisibility = Visibility.Collapsed;
    }