"Add Web Reference" -vs- "Add Service Reference"

I've noticed that in VS 2008 I can add a reference to a web service through "Add Service Reference..." or "Add Web Reference". 

It appears that either of these approaches works but there are some differences in the naming of the client-side proxy that's generated..

Does "Add Service Reference" take advantage of the 3.5 framework?  Does this approach gain any efficiencies if I'm still adding the reference for an asmx web service rather than a WCF service?  Or does "Add Service Reference" for an asmx web service just provide some kind of semi-consistent implementation with WCF services but without any real advantages (performance or otherwise)???

4/28/2009 12:17:20 AM
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Add Service Refrence more useful in case of WCF Services. You can use the same in case of Web Services. Service Reference generates proxy in more detail that web ref.. If describes InputType, OutPut type, and facilitates to execute methods asynchronously.

In case of performance there is no difference. Service Reference gives more options than web reference in proxy.


thank you,

-nm reddy

***Hope this helps you***
thank you,
-nm reddy
4/28/2009 3:33:54 AM

"Add Service Reference" creates a WCF proxy class, and can take advantage of WCF features. "Add Web Reference" creates an old-style ASMX proxy class, which can only use a tiny subset of the features used by web services, and in particular, by WCF.

You should use "Add Service Reference" if at all possible.

John Saunders | MVP – Connected System Developer
5/3/2009 1:37:19 AM

"Add Service Reference" creates a WCF proxy class, and can take advantage of WCF features.

Will you please give me a few examples of some of the WCF features that asmx web services can take advantage of if it's added as a Service Reference?

5/4/2009 5:59:04 PM

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