Dear all, How can i pass user card input and billing country input. Is it required to create my own enumeration of coutries and credit card types. Please tell me solution how can i solve this in C#. DoDirectPmtReqType.DoDirectPaymentRequestDetails.CreditCard.CreditCardType=this.cmbCardType.SelectedItem.Value.ToString().Trim(); DoDirectPmtReqType.DoDirectPaymentRequestDetails.CreditCard.CardOwner.Address.Country=this.cmbCountry.SelectedItem.Value; Error Cannot implicitly convert type 'string' to 'com.paypal.soap.api.CreditCardType' Cannot implicitly convert type 'string' to 'com.paypal.soap.api.CountryCodeType' Thanks, Ahmad