public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == DependencyProperty.UnsetValue)
{
return(value);
}
else if (Converter1 == null || Converter2 == null)
{
List <IValueConverter> convertersReverseList = new List <IValueConverter>(Converters);
convertersReverseList.Reverse();
foreach (var converter in convertersReverseList)
{
value = converter.ConvertBack(value, targetType, parameter, culture);
if (value == Binding.DoNothing)
{
return(Binding.DoNothing);
}
if (value == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
}
return(value);
}
else
{
return(Converter1.ConvertBack(Converter2.ConvertBack(value, targetType, parameter, culture), targetType, parameter, culture));
}
}
/// <summary>
/// Converts back a value by passing it consecutive to the set converters in back order.
/// </summary>
/// <param name="value">Value to be converted back.</param>
/// <param name="targetType">TargetType parameter is send to set converters.</param>
/// <param name="parameter">This parameter is send to set converters.</param>
/// <param name="culture">Culture parameter is send to set converters.</param>
/// <returns>Converted value back from the reversed consecutive execution of the set converters.</returns>
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
object convertedValue = Converter2.ConvertBack(value, targetType, parameter, culture);
return(Converter1.ConvertBack(convertedValue, targetType, parameter, culture));
}