using System.Windows.Data; namespace WPFluent.Converters; internal class NullToVisibilityConverter : IValueConverter { public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture) { return value is null ? Visibility.Collapsed : Visibility.Visible; } public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture) { throw new NotImplementedException(); } }