System.Security.Cryptography.X509Certificates.X509ExtensionCollection.Add C# (CSharp) Method

        public int Add(System.Security.Cryptography.X509Certificates.X509Extension extension)
        {
            throw null;
        }

        /// <summary>
        /// Encodes revocation entry to a ASN.1-encoded byte array.
        /// </summary>
        /// <returns>ASN.1-encoded byte array</returns>
        public Byte[] Encode()
        {
            if (String.IsNullOrEmpty(SerialNumber))
            {
                throw new UninitializedObjectException();
            }
            List <Byte> rawData = new List <Byte>(AsnFormatter.StringToBinary(SerialNumber, EncodingType.HexAny));

            rawData = new List <Byte>(Asn1Utils.Encode(rawData.ToArray(), (Byte)Asn1Type.INTEGER));
            rawData.AddRange(Asn1Utils.EncodeDateTime(RevocationDate));
            if (ReasonCode != 0)
            {
                Byte[] reasonEnum                     = new Byte[] { 10, 1, (Byte)ReasonCode };
                X509ExtensionCollection exts          = new X509ExtensionCollection();
                X509Extension           CRlReasonCode = new X509Extension("2.5.29.21", reasonEnum, false);
                exts.Add(CRlReasonCode);
                rawData.AddRange(Crypt32Managed.EncodeX509Extensions(exts));
            }
            return(Asn1Utils.Encode(rawData.ToArray(), 48));
        }