MS XML Scheme defn tool and choices.(C#/.NET)

[SimonHeffer]

To quote the MS on-line help:
"The XmlChoiceIdentifierAttribute allows you to assign a special enumeration value to each instance of the member. You must either create the enumeration yourself or it can be generated by the XML Schema Definition Tool (Xsd.exe). "

Of course they neglect to tell you how to persuade it (xsd) to do this. I'm afraid I'm new to this XML lark, perhaps someone may enlighten me?

My xml schema includes the following...

  <xs:complexType name="Communications">
    <xs:choice maxOccurs="1">
      <xs:element name="serial" type="SerialPort" />
      <xs:element name="tcp" type="TCPConnection" />
    </xs:choice>
  </xs:complexType>
 

xsd currently gives me..

.
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.42")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="Anite/Terminal Automation Gateway")]
public partial class Communications {
 
    private object itemField;
 
    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("serial", typeof(SerialPort))]
    [System.Xml.Serialization.XmlElementAttribute("tcp", typeof(TCPConnection))]
    public object Item {
        get {
            return this.itemField;
        }
        set {
            this.itemField = value;
        }
    }
}
 

Ta
Simon

[jkmyoung]

http://www.w3schools.com/schema/schema_facets.asp

<xs:element name="car">
<xs:simpleType>
  <xs:restriction base="xs:string">
    <xs:enumeration value="Audi"/>
    <xs:enumeration value="Golf"/>
    <xs:enumeration value="BMW"/>
  </xs:restriction>
</xs:simpleType>
</xs:element> 

[SimonHeffer]

http://www.w3schools.com/schema/schema_facets.asp

<xs:element name="car">
<xs:simpleType>
  <xs:restriction base="xs:string">
    <xs:enumeration value="Audi"/>
    <xs:enumeration value="Golf"/>
    <xs:enumeration value="BMW"/>
  </xs:restriction>
</xs:simpleType>
</xs:element> 

Yes, thanks, I saw that but could see how to force the enumeration value to match the choice. I guess if I'm doing the writing then its up to me but otherwise ?