How to enumerate and call .NET web service methods dynammically?

[Naidu]

Hi
I would like to enumerate methods exposed by a .NET web services dynamically from a windows application and call a specific one.
I think this can be done by following steps: (Please correct me if I am wrong here.)
1. Getting the WSDL
2. Generating the Proxy
3. Enumerating web methods
4. Calling the web method

Could you please let me know how to perform these steps in C#?

Thanking you in anticipation
Naidu

[Jan Tielens]

Alternativly you could process the WSDL XML yourself to discover the
methods.

Or you can use Christan Weyer's tool:
GotDotNet User Sample: Dynamically invoke XML Web Services - significantly
improved
[url]http://tinyurl.com/yvqtp[/url]
Did you ever think about invoking your XML Web Services dynamically without
having to generate a client side proxy class at design/compile time? No need
to know the exact Web Service description and endpoint at compile/design
time. Just get your WSDL from whereever you want, specify the type to
instantiate and the methods to call ... voila! Glance of features: - No need
to add WSDL descriptions during design time - Point-and-run Web Services
invocation functionality (generates in-memory assemblies) - Also resolves
imports of external schemas - Works with complex types - Provides a better
means to completely hide the Web Services bound functionality from client
apps -> think Grid computing - Caching mechanism to improve performance of
already 'well known' Web Services (pre-compiled and cahced assemblies) -
Access the raw SOAP messages for request and response - Sample client
application for testing purposes Please check out the included DynWSLib
README.txt file!

--
Greetz

Jan Tielens
________________________________
Read my weblog: [url]http://weblogs.asp.net/jan[/url]


"Naidu" <anonymous@discussions.microsoft.com> wrote in message
news:97E86403-7BF3-45B6-AD5E-E840DF10F2F0@microsoft.com...

> Hi
> I would like to enumerate methods exposed by a .NET web services

dynamically from a windows application and call a specific one.

> I think this can be done by following steps: (Please correct me if I am

wrong here.)

> 1. Getting the WSDL
> 2. Generating the Proxy
> 3. Enumerating web methods
> 4. Calling the web method
>
> Could you please let me know how to perform these steps in C#?
>
> Thanking you in anticipation
> Naidu
>

[Naidu]

Thanks a lot Jan.

[Naidu]

Cweyer sample is builing the assembly on fly to invoke web methods. Is it possible to invoke web methods using HTTWebRequest? I mean without creating the proxy and the assembly.

Thanks
Naidu

[Christian Weyer [MSDN RD]]

Well, your observation is correct.
Of course you can invoke a Web service using any XML and HTTP functionality
(includingthe way you mention). But be aware that you then have to handle
all the WSDL and SOAP stuff on your own - and this is very error prone (to
say the least)!
The advantage of my approach is that I use the .NET Fx internal libraries to
achieve all kinds of safety when invoking a service. And through the buil-in
caching mechanism performance should not be a big matter ...

Cheers,
--
Christian Weyer

Microsoft .NET & Service Oriented Architectures
Consulting, Developing, Writing & Teaching

[Microsoft Regional Director, Germany]
[url]http://www.regionaldirectors.de/[/url]

* XML Web Services: [url]http://www.xmlwebservices.cc/[/url]
* Weblog: [url]http://weblogs.asp.net/cweyer/[/url]



"Naidu" <anonymous@discussions.microsoft.com> wrote in message
news:10D05F2C-7F86-4061-972B-372E05F1B2A0@microsoft.com...

> Cweyer sample is builing the assembly on fly to invoke web methods. Is it

possible to invoke web methods using HTTWebRequest? I mean without creating
the proxy and the assembly.

>
> Thanks
> Naidu

[Unregistered]

How to enumerate and call .NET web service methods dynammically?