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

namespace UIShare.Converters
{
    public class InverseBooleanConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // null 视为 false，再取反 → true
            var b = value as bool?;
            return !(b ?? false);
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var b = value as bool?;
            return !(b ?? false);
        }
    }
}