C#: Caliburn Micro: How do I control the properties of a WPF Button using data binding?

Question

When a user presses a button, I'd like that button to disappear and be replaced by a Confirm button. The code below is what I thought would make the button disappear, but when I click the button, nothing happens. The DeleteButton() method is properly wired to the XAML using Caliburn Micro conventions. How can I control the button's visibility, or any other property, from the ViewModel? Thanks.

XAML:

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

ViewModel:

    bool _deleteButtonVisibility = true;

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

    public void DeleteButton()
    {
        DeleteButtonVisibility = false;
    }

Answer 1

Visibility isn't boolean, it's System.Windows.Visibility

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

Try this:

    Visibility _deleteButtonVisibility = Visibility.Visible;

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

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