Alba.JamlTestApp.TreeViewWindow._jaml_TreeViewWindowConverter2_Class.Convert C# (CSharp) Метод

            public object Convert (object value, Type targetType, object param, CultureInfo culture)
            {
                if (ReferenceEquals(value, DependencyProperty.UnsetValue))
                    return DependencyProperty.UnsetValue;
                return !(bool)value;
            }