/// <summary>
            /// Retourne le nombre au format litéral choisi
            /// </summary>
            /// <param name="format">Format du nombre litéral</param>
            /// <returns></returns>
            public string ToString(LiteralNumberFormat format)
            {
                string ret = (IsNegative ? "moins " : "");

                switch (format)
                {
                case LiteralNumberFormat.Normal:
                    ret += IntegralPart + (!string.IsNullOrWhiteSpace(DecimalPart) ? " virgule " + DecimalPart : "");
                    break;

                case LiteralNumberFormat.Recommandation1990:
                    ret += IntegralPart.Replace(' ', '-') + (!string.IsNullOrWhiteSpace(DecimalPart) ? " virgule " + DecimalPart.Replace(' ', '-') : "");
                    break;

                case LiteralNumberFormat.Money:
                    ret += string.Format("{0} euro{1}", IntegralPart, Math.Abs(integralPart) > 1 ? "s" : "") + ((!string.IsNullOrWhiteSpace(DecimalPart) ? string.Format(" et {0} centime{1}", DecimalPart, Math.Abs(decimalPart) > 1 ? "s" : "") : ""));
                    break;

                default:
                    break;
                }
                return(ret);
            }
 /// <summary>
 /// Retourne le nombre en lettre
 /// </summary>
 /// <param name="number">Le nombre à transcrire</param>
 /// <param name="format">Le format souhaité</param>
 /// <returns></returns>
 public static string ToWord(this byte number, LiteralNumberFormat format)
 {
     return(Convert.ToDecimal(number).ToWord(format));
 }
 /// <summary>
 /// Retourne le nombre en lettre
 /// </summary>
 /// <param name="number">Le nombre à transcrire</param>
 /// <param name="format">Le format souhaité</param>
 /// <returns></returns>
 public static string ToWord(this decimal number, LiteralNumberFormat format)
 {
     return(GetWords(number, format == LiteralNumberFormat.Money).ToString(format));
 }