I have problem with namespaces. I have a program that consumes the web
service and has for instance names space nsProgram. In this program I have
defined several classes that I use for storing and handling internal
information. Than I have web service, that also uses the same classes (I
included the file as linked external resource). I included this web service
as web reference and used name wsWeb.

When I am trying to call the web service with parameter that is my class
(for instance Data) I can declare this Data class in my main program without
any problem, but compiler reports an error:
Error 1 The best overloaded method match for
'nsProgram.wsWeb.WebData.Test('nsProgram.wsWeb.Hea der)' has some invalid
arguments
Error 2 Argument '1': cannot convert from 'nsProgram.Data' to
'nsProgram.wsWeb.Data'

Why is the wsWeb also included for all data types? How can I get around
that?

Thank you

Simon

Hi Simon,

From your description, you're consuming a .NET webservice in an client app.
The webservice has some certain custom data classes which will be shared in
both client and service project. However, when you try building the
solution, you found that the client app report error about the custom class
object(type/namespace mismatch), correct?

Based on my experience, this is an expected behavior when your webservice
method use a custom class(an this class has also been shared in client
project). Because for webservice, the client-side proxy will also generate
a delegate class type (together with the proxy class), therefore, the
generated webproxy class will use that delegate class type by default( that
is the "nsProgram.wsWeb.Data" in your case). And if you try passing the
originally defined class type( that is "nsProgram.Data" in your case), it
will report type mismatch error.

To resolve this , you can consider the following means:

1. Just let client application use the generated proxy class type instead
of the originally server-side type

2. You can manually modify the generated proxy class(modify the
Reference.cs file ...) and change those "delegate class" to your own class
type. However, this update will be erased whenever you update the
webreference. To further overcome this problem, you can use partial class
feature to put your own customized proxy code logic:

#How to customize the Web Service proxy generated by wsdl.exe (or add web
references)
http://blogs.msdn.com/maximelamure/a...ustomize-the-w
eb-service-proxy-generated-by-wsdl-exe-or-add-web-references.aspx

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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--------------------
From: "Simon" <none (AT) none (DOT) com>
Subject: Problems with namespaces
Date: Wed, 2 Jan 2008 08:54:55 +0100

I have problem with namespaces. I have a program that consumes the web
service and has for instance names space nsProgram. In this program I have
defined several classes that I use for storing and handling internal
information. Than I have web service, that also uses the same classes (I
included the file as linked external resource). I included this web service
as web reference and used name wsWeb.

When I am trying to call the web service with parameter that is my class
(for instance Data) I can declare this Data class in my main program
without
any problem, but compiler reports an error:
Error 1 The best overloaded method match for
'nsProgram.wsWeb.WebData.Test('nsProgram.wsWeb.Hea der)' has some invalid
arguments
Error 2 Argument '1': cannot convert from 'nsProgram.Data' to
'nsProgram.wsWeb.Data'

Why is the wsWeb also included for all data types? How can I get around
that?

Thank you

Simon

"Simon" <none (AT) none (DOT) com> wrote

The classes in your client are proxy classes. They are not the same as the
classes used by the server, and they're not meant to be the same.
--
--------------------------------------------------------------------------------
John Saunders | MVP - Windows Server System - Connected System Developer

Steven thank you for the answer.

Maybe it would be better if you could tell me what would be the preferred
way to handle this. The situation is:

1. I have several classes that will be used in different parts of the
application and web service. They are gathered in one CS file.

2. I have application that uses these types and also consumes web
service that uses data types.

3. I have web service that uses some classes for internal operations and
some classes for data exchange. They are all declared in CS file.

How can I define this and not get and problems with namespaces?

Best regards

Simon


"Steven Cheng[MSFT]" <stcheng (AT) online (DOT) microsoft.com> wrote

Hi Simon,

For those classes, if you want to share them in non-webservice projects
also, I suggest you move them into a separate class library project and all
the other projects(need those classes ) reference that class library.

For webservice, it is a fixed behavior that the generated client proxy will
always create its own version of any custom type/classes that will be used
in webservice methods(as parameter or return value). Therefore, if you want
to use your own type(defined in class library above), you should manually
change the generated proxy's code. Or if it is ok to use the proxy
generated classes, then, just change the namespace to those proxy generated
classes' namespace.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


This posting is provided "AS IS" with no warranties, and confers no rights.

--------------------
From: "Simon" <none (AT) none (DOT) com>
References: <D8658B36-F7C5-446A-934E-9CEA71D53782 (AT) microsoft (DOT) com>
<TWKnuZSTIHA.7612 (AT) TK2MSFTNGHUB02 (DOT) phx.gbl>
In-Reply-To: <TWKnuZSTIHA.7612 (AT) TK2MSFTNGHUB02 (DOT) phx.gbl>
Subject: Re: Problems with namespaces
Date: Wed, 2 Jan 2008 17:05:46 +0100

Steven thank you for the answer.

Maybe it would be better if you could tell me what would be the preferred
way to handle this. The situation is:

1. I have several classes that will be used in different parts of the
application and web service. They are gathered in one CS file.

2. I have application that uses these types and also consumes web
service that uses data types.

3. I have web service that uses some classes for internal operations
and
some classes for data exchange. They are all declared in CS file.

How can I define this and not get and problems with namespaces?

Best regards

Simon


"Steven Cheng[MSFT]" <stcheng (AT) online (DOT) microsoft.com> wrote