Enum ToSelectList extensions with DisplayAttribute support

gistfile1.cs

    public static class EnumExtensions
    {
        public static SelectList ToSelectList<T>(T? defaultValue) where T : struct
        {
            Type t = typeof(T);
            if (t.IsEnum)
            {
                var values = from Enum e in Enum.GetValues(t)
                             select new
                             {
                                 ID = Enum.Parse(typeof(T), e.ToString()),
                                 Description = GetEnumDescription(e)
                             };

                if (defaultValue.HasValue)
                    return new SelectList(values, "ID", "Description", Enum.Parse(typeof(T), defaultValue.ToString()));
                else
                    return new SelectList(values, "ID", "Description");
            }
            return null;
        }

        public static string GetEnumDescription<T>(T value)
        {
            FieldInfo fi = value.GetType().GetField(value.ToString());

            DisplayAttribute[] attributes = (DisplayAttribute[])fi.GetCustomAttributes(typeof(DisplayAttribute), false);

            if ((attributes != null) && (attributes.Length > 0))
                return attributes[0].Name;
            else
                return value.ToString();
        }
    }