title: Removing an optional value type element from a SOAP message sent via a WCF proxy
body: <p>We have a wsdl specifying a datetime element.  It is nullable, in the sense that minOccurs=0.  However, using svcutil to generate a proxy class does not give us a .net nullable DateTime property, so how best can we make the proxy class serialise the message to a SOAP message that does not contain the datetime element?</p>