"Michael Nemtsev" wrote:
> Hello serge,
>
> Look at the n-tier system as a chain of client-servers
>
> after u created serverapp.dll u install it in GAC on the computer B, and
> create proxy.
> U need to either copy that proxy to the comp A, or deploy it with ClickOnce
>
> on the comp A you need add reference to this proxy in your client app
>
> sc> thnaks michael for your reply, but sorry to say that I am a bit
> sc> confused now..
> sc>
> sc> Lets be clear.
> sc> For example I have an Application A which is on Computer A
> sc> (Clientapp.exe)
> sc> Then that client app will have a config file as it will be the user
> sc> interface.
> sc> Then I have an application B which is located on computer B
> sc> (serverapp.dll)
> sc>
> sc> So first I am creating un VS2003 the library for serverapp.dll and
> sc> compile. Next I create the user interface and I need to add a
> sc> reference to serverapp.dll.
> sc>
> sc> As I do not know in advance where the serverapp.dll will be located,
> sc> how my ClientApp project will contain that reference ?
> sc>
> sc> How my client application will know where to get the location of
> sc> serverapp.dll during runtime.
> sc>
> sc> I ma sorry for this basic question maybe but I am not familar at
> sc> all with distibuted application, I am actually study it for my MCAD
> sc> exam but could not find clear example. Most of the time I get sample
> sc> of client and server application that use .NET Remoting, but running
> sc> on same system. Nothing is explain on what to clearly do if the
> sc> server application is installed on a remote location.
> sc>
> sc> Thnaks for your help
> sc> regard
> sc> serge
> sc> "Michael Nemtsev" wrote:
> sc>
> >> Hello serge,
> >>
> >> Yes, even using web-services u need a proxy.
> >>
> >> With remoting and SOAP services u may not create app proxy. Only what
> >> do u need is the serviced component assembly (ClickOnce deployment is
> >> possible)
> >>
> >> and therefore u can use configurate client's config files and use
> >> smth like below in code
> >>
> >> ChannelServices.RegisterChannel(new HttpChannel());
> >>
> >> RemotingConfiguration.RegisterActivatedClientType(
> >> typeof(RemotingDemo), "http://devstation/RemotingDemo");
> >>
> >> RemotingConfiguration.RegisterWellKnownClientType(
> >> typeof(StatelessComponent), "http://devstation/RemotingDemo." +
> >> "Demos.Networking.StatlessComponent.soap");
> >>
> >> sc> so in that as soon as we wnat to handle tiers- architecture, all
> >> sc> reference are manage as a proxy classe which is implemented in
> >> each
> >> sc> machines that need that references ?
> >> sc>
> >> sc> same as web services, when is it not directly available for
> >> sc> implementation then.
> >> sc>
> >> sc> Doe sthis proxy can be created also when implementing remoting
> >> sc> instead of web services ? how?
> >> sc>
> >> sc> thnaks for your help
> >> sc> regards
> >> sc> "Michael Nemtsev" wrote:
> >> sc>
> >>>> Hello serge,
> >>>>
> >>>> Take into account that there are two concepts - "tier" and "layer"
> >>>> Tier is a physical location and layer is abstract location. Tiers
> >>>> located
> >>>> on different machines and liers could locate on one.
> >>>> Advance of n-tier architecture is to give scalability, reliability
> >>>> and durability,
> >>>> and it's not important that all layers/tiers should be physically
> >>>> distributed
> >>>> In general, in small apps, the tier-layer-layer is most common
> >>>> solution.
> >>>> It means that smart-client locates on separate machine and
> >>>> business and data layers on the second one. In your scenario B and
> >>>> C
> >>>> componens
> >>>> could locate together.
> >>>> To move divide the on different machines only thing u should
> >>>> undertake is
> >>>> to create proxy from component C and use it with your B component.
> >>>> It's a couple of clicks in Component Explorer
> >>>> sc> I am studying an application architecture based on an n.Tiers
> >>>> sc> architecture. I have it defined as:
> >>>> sc> Presenation tiers
> >>>> sc> Buisness logic
> >>>> sc> DataLayer
> >>>> sc> Actually as far as I have understand benefits of 3 or N-tiers
> >>>> sc> architecture, excpet all adavntage of code maintenance and
> >>>> sc> scalability, they shoud be able to be installed separatly on
> >>>> sc> different machine rignt ?
> >>>> sc>
> >>>> sc> In that case let say that my Presnetaion layer is my Internet
> >>>> sc> browser from a computer A. Then my buisness logic is installed
> >>>> on
> >>>> a
> >>>> sc> computer B (Web Server) and Datalayer is on Computer C (SQL
> >>>> server
> >>>> sc> DB).
> >>>> sc>
> >>>> sc> On computer C I have a class library which is in charge to
> >>>> connect
> >>>> sc> to the
> >>>> sc> database
> >>>> sc> From computer B my application need a reference to the class
> >>>> library
> >>>> sc> of
> >>>> sc> computer C.
> >>>> sc> How all this reference is done ?
> >>>> sc>
> >>>> sc> thnaks for your reply
> >>>> sc> regards
> >>>> sc> serge
>
> ---
> WBR,
> Michael Nemtsev :: blog:
http://spaces.msn.com/members/laflour >
> "At times one remains faithful to a cause only because its opponents do not
> cease to be insipid." (c) Friedrich Nietzsche
>
>