How can I force WCF to autogenerate WSDLs with required method parameters (minoccurs=“1”)?

Question

While using WCF and OperationContracts I have the following method defined:

    [OperationContract]
    [FaultContract(typeof(ValidationFault))]
    [FaultCo         


        

Answer 1

Check that MyComplexType is marked with a [DataContract] attribute.

For my own WCF contract, I found that minOccurs = 1 would not show up for IsRequired=true in the generated wsdl until the whole chain of objects implicated in the contract were marked as such.