RE: dll problem on Remoting app

Thanks for your response ferunic,

So I've got the further background of your application. I assume that when
the object is created as remote object (hosting application), it is created
as SAO(server activated ..), and the consumer app use Activator.GetObject
to retrieve that proxy reference, yes?

As for SAO, when we use GetObject or the class constructor to create the
object, the remote object is not actually created or referenced, in other
word, the client consumer has not communicated with the hosting server
object yet. The communiation to the remoting server won't happen until the
first time we call a remote method of the remote object(through client
proxy...). So you can check if the exception occurs everytime your client
application try invoking a remote method on a remote object's proxy.....
If so, we need to recheck the remote object's registering and client app's
configuration.....

Thanks,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)


--------------------
| Thread-Topic: dll problem on Remoting app
| thread-index: AcX72We3OR1jTEBORjuOYI7ced6+hA==
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| From: =?Utf-8?B?RmVybmFuZG8gTW9yZW5v?= <ferunic@xxxxxxxxxxxxxxxx>
| References: <1715F53E-E072-42DF-B8CB-1E16ECF2FACB@xxxxxxxxxxxxx>
<Cr4c9g6#FHA.552@xxxxxxxxxxxxxxxxxxxxx>
| Subject: RE: dll problem on Remoting app
| Date: Thu, 8 Dec 2005 01:26:01 -0800
| Lines: 97
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| Hi, and Thank's for your help.
| I will try to explain me.
| We have a Windows Application solution (MyApp from now) with many class
| libraries and one of them libraries reference to an external dll (PBdll)
| (developed on PowerBuilder) running this application as a Local
application
| works fine, we also have a Windows Service App with all the same
libraries
| (including the one who use PBDll).
| Finally in our config file for MyApp we have an option to decide if app
will
| be Local or Remoting, if remoting the application creates objects through
| tcp/http channel)
|
| Everything works fine here but the methods on PBdll class (not the object
| itself, It's create without error I guess)
| I don't know if is more clear for you now...
| Which code do you think could help you to understand more??
|
|
| Anyway properties for the PBdll reference:
| Copy Local true
| Culture 0
| Description A description
| Identity {98989898...}\1.0\0\tlbimp
| Path C:\VSS\Work\Source\Varsling\obj\Interop.net_fravsjekk.dll
| Runtime Version
| Strong Name true
| Type ActiveX
| Version 1.0
|
|
|
| "Steven Cheng[MSFT]" wrote:
|
| > Hello Ferunic,
| >
| > Welcome to MSDN newsgroup.
| > From your description, you're creating an .net class instance remotely
and
| > when try accessing one of its method you encountred
NullReferenceException
| > ,yes?
| >
| > Based on the error message, the problem seems due to the object
instance
| > not created correctly. I'm wondering what's your actual remoting
scenario,
| > are you creating remote object through cross process remoting(through
| > tcp/http channel....) or just creating remote object in other appDomain
| > within same process? If convenient, I'd suggest you provide some
further
| > descrpition or code snippet on this.
| >
| > Regards,
| >
| > Steven Cheng
| > Microsoft Online Support
| >
| > Get Secure! www.microsoft.com/security
| > (This posting is provided "AS IS", with no warranties, and confers no
| > rights.)
| >
| >
| >
| > --------------------
| > | Thread-Topic: dll problem on Remoting app
| > | thread-index: AcX7ae2pIdybQCa5S1SrJFoq7y2L9w==
| > | X-WBNR-Posting-Host: 217.68.124.30
| > | From: =?Utf-8?B?RmVybmFuZG8gTW9yZW5v?= <ferunic@xxxxxxxxxxxxxxxx>
| > | Subject: dll problem on Remoting app
| > | Date: Wed, 7 Dec 2005 12:08:02 -0800
| > | Lines: 10
| > | Message-ID: <1715F53E-E072-42DF-B8CB-1E16ECF2FACB@xxxxxxxxxxxxx>
| > | MIME-Version: 1.0
| > | Content-Type: text/plain;
| > | charset="Utf-8"
| > | Content-Transfer-Encoding: 7bit
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| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0
| > | Newsgroups: microsoft.public.dotnet.framework
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| > | Path: TK2MSFTNGXA02.phx.gbl!TK2MSFTNGXA03.phx.gbl
| > | Xref: TK2MSFTNGXA02.phx.gbl microsoft.public.dotnet.framework:104936
| > | X-Tomcat-NG: microsoft.public.dotnet.framework
| > |
| > | Hi,
| > | We have an application which can both run as Local and with remoting,
| > this
| > | app use an external dll (let us call it exapp.dll) and everything is
ok
| > when
| > | the app runs Local (not remoting) but in remoting mode I can declare
an
| > exapp
| > | object but whe I tried to call method exapp.mymethod() an
| > | NullReferenceException is thrown.
| > | Any clues?
| > | Thank's
| > |
| > |
| > |
| >
| >
|

.

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