SoapMessage.EnsureInStage Method ()
When overridden in a derived class, asserts that the current SoapMessageStage is a stage where in parameters are available.
Assembly: System.Web.Services (in System.Web.Services.dll)
The asserted stage is different for XML Web service clients and XML Web service methods. An XML Web service method's in parameters are available after the SOAP request is deserialized in the AfterDeserialize stage. For an XML Web service client, the in parameters are available prior to the SOAP request serialization process in the BeforeSerialize stage.
Available since 1.1