Abstract method that a derived class must implement to add SOAP extension information to a ServiceDescription object on a per-method basis.
Assembly: System.Web.Services (in System.Web.Services.dll)
Themethod is called for each Web method that belongs to a binding that the ServiceDescriptionrepresents. The method does not use the Web method directly. The SOAP extension information gets added for all Web methods in a binding reflected from a Web service class.
An implementation of the can generate information like operation binding, abstract operation, and messages.