UsingDisplayAttributeOnEnum.cs

public class UsingDisplayAttributeOnEnum
{
    private void Main()
    {
        IEnumerable<SelectListItem> result = typeof (Genre).GetItems();
    }
}

public enum Genre
{
    [Display(Name = "Non Fiction")] NonFiction,
    Romance,
    Action,
    [Display(Name = "Science Fiction")] ScienceFiction
}

public static class EnumHelpers
{
    public static IEnumerable<SelectListItem> GetItems(this Type enumType)
    {
        if (!typeof (Enum).IsAssignableFrom(enumType))
        {
            throw new ArgumentException("Type must be an enum");
        }

        string[] names = Enum.GetNames(enumType);
        IEnumerable<int> values = Enum.GetValues(enumType).Cast<int>();

        IEnumerable<SelectListItem> items = names.Zip(values, (name, value) =>
            new SelectListItem
            {
                Text = GetName(enumType, name),
                Value = value.ToString(CultureInfo.InvariantCulture)
            });

        return items;
    }

    private static string GetName(Type enumType, string name)
    {
        string result = name;

        DisplayAttribute attribute =
            enumType
                .GetField(name)
                .GetCustomAttributes(false)
                .OfType<DisplayAttribute>()
                .FirstOrDefault();

        if (attribute != null)
        {
            result = attribute.GetName();
        }

        return result;
    }
}