bloxstrap/Bloxstrap/UI/Converters/InverseBooleanToVisibilityConverter.cs

using System.Windows;
using System.Windows.Data;

namespace Bloxstrap.UI.Converters
{
    public class InverseBooleanToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool boolValue)
                return boolValue ? Visibility.Collapsed : Visibility.Visible;

            return Visibility.Visible;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}