Joe Fawcett wrote:
[...]
> XmlIgnore and Obsolete are two very different attributes, the former says do
> not include this property in XML serialisation, the latter is marking the
> property as obsolete.
> Sound to me like the WSDL schema has payment type down as an enumeration or
> the like with 0 an invalid choice.
> Can you show the schema?

Here's part of it: it's 3,100 lines long or I'd post the lot!

      <s:complexType name="Order">
        <s:sequence>
          <s:element minOccurs="1" maxOccurs="1" name="GrandTotal"
type="s:decimal" />
          <s:element minOccurs="0" maxOccurs="1" name="IndividualKey"
type="tns:IndividualKey" />
          <s:element minOccurs="0" maxOccurs="1" name="InvoiceAddress"
type="tns:Address" />
          <s:element minOccurs="0" maxOccurs="1"
name="OrderItemGroupList" type="tns:ArrayOfOrderItemGroup" />
          <s:element minOccurs="1" maxOccurs="1" name="SubTotal"
type="s:decimal" />
          <s:element minOccurs="1" maxOccurs="1" name="Vat"
type="s:decimal" />
          <s:element minOccurs="1" maxOccurs="1" name="PostageAmount"
type="s:decimal" />
          <s:element minOccurs="0" maxOccurs="1" name="InvoiceNumber"
type="s:string" />
          <s:element minOccurs="0" maxOccurs="1" name="OrderReference"
type="s:string" />
          <s:element minOccurs="0" maxOccurs="1" name="IndividualName"
type="s:string" />
          <s:element minOccurs="1" maxOccurs="1" name="DiscountAmount"
type="s:decimal" />
          <s:element minOccurs="1" maxOccurs="1" name="OverrideTotal"
type="s:boolean" />
          <s:element minOccurs="0" maxOccurs="1" name="OverrideReason"
type="s:string" />
          <s:element minOccurs="0" maxOccurs="1"
name="OrderPaymentElements" type="tns:ArrayOfOrderPayment" />
        </s:sequence>
      </s:complexType>
      <s:complexType name="OrderPayment">
        <s:sequence>
          <s:element minOccurs="1" maxOccurs="1" name="PaymentAmount"
type="s:decimal" />
          <s:element minOccurs="1" maxOccurs="1" name="PaymentType"
type="tns:OrderPaymentType" />
          <s:element minOccurs="0" maxOccurs="1" name="OrderReference"
type="s:string" />
        </s:sequence>
      </s:complexType>
      <s:simpleType name="OrderPaymentType">
        <s:restriction base="s:string">
          <s:enumeration value="None" />
          <s:enumeration value="DataCash" />
          <s:enumeration value="ManualCash" />
          <s:enumeration value="ManualCheque" />
          <s:enumeration value="CreditCard" />
        </s:restriction>
      </s:simpleType>

Thanks

Edward