GeekDesk/Converts/ReverseBoolConvert.cs

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

namespace GeekDesk.Converts
{
    internal class ReverseBoolConvert : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value == null) return null;
            bool val = (bool)value;
            return !val;
        }

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