You can use a ValueConverter that inverts a bool property for you. XAML: IsEnabled=”{Binding Path=IsReadOnly, Converter={StaticResource InverseBooleanConverter}}” Converter: [ValueConversion(typeof(bool), typeof(bool))] public class InverseBooleanConverter: IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (targetType != typeof(bool)) throw new InvalidOperationException(“The target must be a boolean”); return !(bool)value; } public … Read more