Dear all, I am using Direct Payment API/Web Services. When i run my code with following values it works fine. DoDirectPmtReqType.DoDirectPaymentRequestDetails.CreditCard.CreditCardType=CreditCardTypeType.Visa; DoDirectPmtReqType.DoDirectPaymentRequestDetails.CreditCard.CardOwner.Address.Country = CountryCodeType.US; But when i used input fields with following values it returns compilation error. If some one have idea about these error please reply. 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