protected override ConversionResult <bool> ConvertBack(ViewStates value, Type targetType, object parameter, CultureInfo culture)
{
return(ConversionResult <bool> .SetValue(value == ViewStates.Visible));
}
protected override ConversionResult <bool> ConvertBack(bool value, Type targetType, object parameter, CultureInfo culture)
{
return(ConversionResult <bool> .SetValue(!value));
}
protected override ConversionResult <ViewStates> Convert(bool value, Type targetType, object parameter, CultureInfo culture)
{
return(ConversionResult <ViewStates> .SetValue(value?ViewStates.Visible : ViewStates.Gone));
}
protected virtual ConversionResult <TSourceValue> ConvertBack([CanBeNull] TTargetValue value, [NotNull] Type targetType, [CanBeNull] object parameter, [NotNull] CultureInfo culture)
{
return(ConversionResult <TSourceValue> .UnsetValue());
}