How to add SoapExtension attribute to generated web service client proxy without modifying the generated class?

Unfortunately, you'll need to modify the proxy code. The other possibilities you mention will not work - a parial class will not overwrite existing functionality, and there is no way that I'm aware of getting an interface to do what you need (compounded by the fact that there is no way to even let the proxy generator know that you intend to implement an interface).

Unfortunately, you'll need to modify the proxy code. The other possibilities you mention will not work - a parial class will not overwrite existing functionality, and there is no way that I'm aware of getting an interface to do what you need (compounded by the fact that there is no way to even let the proxy generator know that you intend to implement an interface). Something that I've done in the past, in a situation where you have access to the source of the webservice, is to write a little app that will parse the code (as text) in the .

Asmx.Cs file of the webservice to extract the names of all the methods that are tagged with WebMethod. Then the app "fixes up" the References. Cs by inserting appropriate attributes onto the proxied methods, based on some settings file or somesuch.

This works well because the naming conventions in the proxy map very neatly to the method names in the original service.

I may just end up injecting my SoapExtension by putting it into the Web.config. This will cause it to be run on every WS call without a client proxy method attribute. Then, I will modify the SoapExtension to look up the called WS method name on a list, and if it is on the list, then do the rest of the SoapExtension logic.

I figure the hit on the list in this small volume application isn't going to kill performance.

AttributeUsage(AttributeTargets. Method | AttributeTargets. Class) public class CriptoExtensionAttribute : SoapExtensionAttribute CriptoExtension public partial class MainService{.

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