How do I send an event from Windows service to a client application -- dotnet remoting

dotnet remoting : How do I send an event from Windows service to a client application

Ken Kolda
12/31/2004 12:44:22 PM

Take a look at this sample code:

http://www.bearcanyon.com/dotnet/#RemoteEvents

As you've noted, in order for your client to subscribe to the events, the
class that defines the events must be in a shared assembly used by both the
client and the windows service. Generally every remoting project will have
at least three assemblies:

1) The client application/assembly.
2) The server application/assembly.
3) The shared remoting interfaces/classes assembly.

The shared assembly will generally contain:

1) The definitions of any serializable classes used by both client and
server.
2) Either the class definitions or simply interface definitions for your
MarshalByRefObject-derived classes. (Remote events would always be defined
on a MBR class, so they would be in here also).

The sample code should help you out. If you run into any snags, post back.

Good luck -
Ken

[quoted text, click to view]

Trevor Braun
12/31/2004 2:26:24 PM

I have a Windows service that uses a timer and checks an ODBC datasource for
new sales order every few seconds. When the new sales order is found, I'd
like to notify a client application that the new sales order was detected.
I thought this was going to be fairly simple, but I can't get it to work.
I've tried several solutions using remoting, and examples from different web
sites, but I can't seem to get any of it working because the events are
being sent from one application to another. In VS.NET, I can't even
reference the windows service events, because they're part of an exe, not an
assembly.

Any help would be very much appreciated, however, I'm new to remoting, and I
have just a minor understanding of the sinks, channels, etc, so if you could
give me details or somewhere that I can find a good example of exactly what
I'm trying to do, I would be very, very grateful.

Thanks,
Trevor Braun

narasimha.gm NO[at]SPAM gmail.com
1/3/2005 10:19:44 PM

Hi,

If the client app is continously ruuning, what you can do is define a
remote object in the client application which implements an interface
like:
ICallback
{
void Update(object objdata);
}

Then your windows service has to create instance of this remote object
to communicate the event to your client application:
Activator.GetObject(..);

Regards
Ngm

Got something to say? Click here to post a reply to this thread.

Don't see what you're looking for? Try a search.

View other messages about dotnet remoting

View Other Months
June 2003
July 2003
August 2003
September 2003
October 2003
November 2003
December 2003
January 2004
February 2004
March 2004
April 2004
May 2004
June 2004
July 2004
August 2004
September 2004
October 2004
November 2004
December 2004
January 2005
February 2005
March 2005
April 2005
May 2005
June 2005
July 2005
August 2005
September 2005
October 2005
November 2005
December 2005
January 2006
February 2006
March 2006
April 2006
May 2006
June 2006
July 2006
August 2006
September 2006
October 2006
November 2006
December 2006
January 2007
February 2007
March 2007
April 2007
May 2007
June 2007
July 2007
August 2007
September 2007
October 2007
November 2007
December 2007
January 2008
February 2008
March 2008
April 2008
May 2008
June 2008

home · blog · groups

Questions? Comments? Contact the dn