private TranslationElement GetTranslation(CultureInfo culture)
{
// Use English as a default if there are no translation element
TranslationElement te = TranslationElement.English;
string languageName = culture.TwoLetterISOLanguageName;
if (_translations.ContainsKey(languageName))
{
te = _translations[languageName];
}
return(te);
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!targetType.IsAssignableFrom(typeof(string)))
{
throw new InvalidOperationException("The target must be a string!");
}
TranslationElement te = GetTranslation(culture);
if (value is bool?)
{
bool?b = (bool?)value;
if (b.HasValue)
{
return(b.Value ? te.Yes : te.No);
}
}
return(Binding.DoNothing);
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!targetType.IsAssignableFrom(typeof(bool?)))
{
throw new InvalidOperationException("The target must be a boolean!");
}
TranslationElement te = GetTranslation(culture);
string s = value.ToString().Trim();
if (string.Compare(s, te.Yes) == 0)
{
return(true);
}
else if (string.Compare(s, te.No) == 0)
{
return(false);
}
else
{
return(null);
}
}