/// <summary>
/// Convert back an enum value description into its enum value.
/// </summary>
public object ConvertBack(object enumValueDescription, Type enumType, object parameter, CultureInfo culture)
{
if (enumValueDescription == null)
return null;
var stringType = enumValueDescription.GetType();
if (stringType != typeof(string))
return null;
object enumValue;
var enumValueDescriptionString = (string)enumValueDescription;
if (_enumValueDescriptionsCache.ContainsKey(enumValueDescriptionString))
{
enumValue = _enumValueDescriptionsCache[enumValueDescriptionString];
}
else
{
enumValue = EnumAttributeHelpers.GetEnumValueFromDescription(enumValueDescriptionString, enumType);
if (enumValue != null)
{
_enumValueDescriptionsCache.Add(enumValueDescriptionString, enumValue);
}
}
return enumValue;
}
/// <summary>
/// Convert an enum value into its enum value description.
/// </summary>
public object Convert(object enumValue, Type stringType, object parameter, CultureInfo culture)
{
var enumValueDescription = string.Empty;
if (enumValue == null)
return enumValueDescription;
var enumType = enumValue.GetType();
if (!enumType.IsEnum)
return enumValueDescription;
enumValueDescription = EnumAttributeHelpers.GetEnumValueDescription(enumValue, enumType);
if (!_enumValueDescriptionsCache.ContainsKey(enumValueDescription))
_enumValueDescriptionsCache.Add(enumValueDescription, enumValue);
return enumValueDescription;
}
