// just some quick snippets for GUI / Winforms / C# / etc
// these might not be the best ways to do this stuff, was just working on some ideas

// example of an enum with Description() applied
public enum ROMMapMode : byte
{
    LoROM,
    HiROM, 
    ExHiROM, 
    [Description("SA - 1 ROM")]
    SA1ROM, 
    [Description("SA-1 ROM (FuSoYa's 8MB mapper)")]
    ExSA1ROM, 
    SuperFX,
    [Description("Super MMC")]
    SuperMMC, 
    ExLoROM
}

// take a enum type that has [Description] attributes,
// return a List with with kvp pairs of enum vs description
public static List<KeyValuePair<TEnum, string>>
    GetEnumDescriptions<TEnum>() where TEnum : Enum
{
    var type = typeof(TEnum);
    return Enum.GetValues(type)
        .Cast<TEnum>()
        .Select(value => new
            KeyValuePair<TEnum, string>(key: value, value: GetEnumDescription(value))
        )
        .OrderBy(item => item.Key)
        .ToList();
}

public class EnumMapper<TEnum> where TEnum : Enum
{
    public TEnum Source { get; set; }

    // surely... there is some third party library that handles this.
    // for now, here we are.
    public int SelectedIndex
    {
        get => Convert.ToInt32(Source);
        set => Source = (TEnum)Enum.ToObject(typeof(TEnum), value);
    }

    public List<KeyValuePair<TEnum, string>> Descriptions { get; }
        = Util.GetEnumDescriptions<TEnum>();
}
var mapper = new EnumMapper<Data.ROMMapMode>();