The System.Web.Services.Description.SoapExtensionImporter abstract class exposes an abstract method, SoapExtensionImporter.ImportMethod(System.CodeDom.CodeAttributeDeclarationCollection), which allows a derived class to add metadata to any method that represents an operation in a binding. The method itself is not an input method. The code attributes, which are added to all Web methods in a binding class, represent extensions to the SOAP Web services protocol, for example, for adding extra headers to an outgoing SOAP message or doing extra processing on an incoming SOAP message.

You can use a class derived from System.Web.Services.Description.SoapExtensionImporter to extend the generation of client proxy code or abstract server code. You can use such a derived class in conjunction with a class derived from the abstract System.Web.Services.Protocols.SoapExtension class, which extends run-time processing of SOAP messages on the client or service.

You can specify System.Web.Services.Description.SoapExtensionImporter in a configuration file through the soapExtensionImporterTypes configuration element and its child add element. You can apply the configuration to:

• An ASP.NET Web application: service or client.

• A stand-alone .NET Framework application: client only.

Namespace: System.Web.Services.Description
Assembly: System.Web.Services (in System.Web.Services.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0