object[] IMultiValueConverter.ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
if (value == DependencyProperty.UnsetValue)
{
return(Enumerable.Repeat(DependencyProperty.UnsetValue, targetTypes.Length).ToArray());
}
var castedValue = ChainConverterHelper.CastValue <TTo>(value, this);
return(ConvertBack(castedValue, targetTypes, parameter, culture).Cast <object>().ToArray());
}
object IValueConverter.ConvertBack(object value, Type targetType, object parameter, CultureArgumentType cultureArgument)
{
if (value == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
var castedValue = ChainConverterHelper.CastValue <TTo>(value, this);
object convertedValue = ConvertBack(castedValue, targetType, parameter, cultureArgument);
if (Converter != null)
{
convertedValue = Converter.ConvertBack(convertedValue, targetType, parameter, cultureArgument);
}
return(convertedValue);
}
object IMultiValueConverter.Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
if (values.Any(x => Equals(x, DependencyProperty.UnsetValue)))
{
return(DependencyProperty.UnsetValue);
}
var castedValues = values.Select(x => ChainConverterHelper.CastValue <TFrom>(x, this)).ToArray();
object convertedValue = Convert(castedValues, targetType, parameter, culture);
if (Converter != null)
{
var innerCultureArgument = GetCultureArgumentForInnerConverter(culture);
convertedValue = Converter.Convert(convertedValue, targetType, parameter, innerCultureArgument);
}
return(convertedValue);
}
object IValueConverter.Convert(object value, Type targetType, object parameter, CultureArgumentType cultureArgument)
{
if (value == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
var castedValue = ChainConverterHelper.CastValue <TFrom>(value, this);
if (CheckToStopChainConverting(castedValue, targetType, parameter, cultureArgument))
{
return(GetStoppedValue(castedValue, targetType, parameter, cultureArgument));
}
var valueToConvert = GetValueToConvert(castedValue, targetType, parameter, cultureArgument);
if (Converter != null)
{
return(Converter.Convert(valueToConvert, targetType, parameter, cultureArgument));
}
return(valueToConvert);
}
