Microsoft® Visual Basic® .NET Programmer's Cookbook

Log SOAP Messages with a SOAP Extension

Problem

You want to directly access or modify raw SOAP messages with .NET code.

Solution

Create a custom SOAP extension.

Discussion

ASP.NET allows you to access the raw SOAP messages that are transmitted to and from a Web service, but only by creating a special SOAP extension class. This class is triggered automatically as the SOAP message passes through the following four stages on the server:

• SoapMessageStage.BeforeDeserialize occurs immediately after the Web server receives the SOAP request message.

• SoapMessageStage.AfterDeserialize occurs after the raw SOAP message is translated to .NET data types but just before the Web method code runs.

• SoapMessageStage.BeforeSerialize occurs after the Web method code runs ...