Litle.Sdk.payPal.Serialize C# (CSharp) Method

        public string Serialize()
        {
            string xml = "";
            if (payerId != null) xml += "\r\n<payerId>" + SecurityElement.Escape(payerId) + "</payerId>";
            if (payerEmail != null) xml += "\r\n<payerEmail>" + SecurityElement.Escape(payerEmail) + "</payerEmail>";
            if (token != null) xml += "\r\n<token>" + SecurityElement.Escape(token) + "</token>";
            if (transactionId != null) xml += "\r\n<transactionId>" + SecurityElement.Escape(transactionId) + "</transactionId>";
            return xml;
        }