test.cs

 public enum GestioneProprietaStraus
    {
        [Description("Applica")]
        Applica,
        [Description("Calcola Cerniere Plastiche")]
        //[EnumDisplayName("Calcola Cerniere Plastiche")]
        Calcola_Cerniere_Plastiche
    }
    
    public class GeneralSettings :INotifyPropertyChanged
    {
        //here some properties...
        [PropertyOrder(9)]
        [DisplayName("Gestione proprietà su Straus7 in")]
        [System.ComponentModel.TypeConverter(typeof(EnumDescConverter))]
        public GestioneProprietaStraus ManageStrausProperties
        {
            get { return _manageStrausProperties; }
            set { _manageStrausProperties = value; NotifyPropertyChanged("ManageStrausProperties"); }
        }
        
        //here some other properties...
    }
    
public class EnumDescConverter : EnumConverter
{

    private Type _enumType;

    /// Initializing instance

    /// type Enum

    ///this is only one function, that you must

    ///to change. All another functions for enums

    ///you can use by Ctrl+C/Ctrl+V

    public EnumDescConverter(Type type)

        : base(type)
    {

        _enumType = type;

    }

    public override bool CanConvertTo(ITypeDescriptorContext context, Type destType)
    {

        return destType == typeof(string);

    }

    public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destType)
    {

        FieldInfo fi = _enumType.GetField(Enum.GetName(_enumType, value));

        DescriptionAttribute dna = (DescriptionAttribute)Attribute.GetCustomAttribute(fi, typeof(DescriptionAttribute));

        if (dna != null)

            return dna.Description;

        else

            return value.ToString();

    }

    public override bool CanConvertFrom(ITypeDescriptorContext context, Type srcType)
    {

        return srcType == typeof(string);

    }

    public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
    {

        foreach (FieldInfo fi in _enumType.GetFields())
        {

            DescriptionAttribute dna =

            (DescriptionAttribute)Attribute.GetCustomAttribute(fi, typeof(DescriptionAttribute));

            if ((dna != null) && ((string)value == dna.Description))

                return Enum.Parse(_enumType, fi.Name);

        }

        return Enum.Parse(_enumType, (string)value);

    }

}