Thread View: borland.public.cppbuilder.database.multi-tier
3 messages
3 total messages
Started by Ajay Pathare
Wed, 03 Jan 2001 19:35
Provider list is empty
Author: Ajay Pathare
Date: Wed, 03 Jan 2001 19:35
Date: Wed, 03 Jan 2001 19:35
18 lines
1715 bytes
1715 bytes
We have developed Web application Under C++Builder 5 and Oracle 8i using ADO and MTS/COM+. App server working fine under NT 4, 98 and 95. Recently we purchase new m/c with pre installed Windows 2000 Prof. and Windows 2000 Advance Server. I deployed same App Server DLL under COM+ after rebuilding. In designed mode I can connect TDCOMConnection obj successfully. But my TClientDataSet provider list remains empty. I tried setting Provider Name manually. After Setting Provider name if i set Active = true i get error RPC fail. I tried reinstallation of Windows 2000 Prof./ Server and C++Builder 5 twice. Same i tried and three new machine with Windows 2000, problem continues. But same one is working fine with Windows 98/NT and my Oracle 8i Server is Same (Windows 2000 Advance Server). Is any one tried using MIDAS under COM+. Thanks In Advance Regards Ajay
Re: Provider list is empty
Author: John Graham
Date: Sat, 13 Jan 2001 13:23
Date: Sat, 13 Jan 2001 13:23
46 lines
2891 bytes
2891 bytes
Ajay, Maybe one or more of the RPC services on your work station and/or file server needs to be started. It's also possible that running DCOMCNFG.EXE on either or both machines to set connection parameters and the like might be helpful. I've just started converting my apps. from BCB4 to BCB5, so I'm no expert. However, my BCB4 apps. all use socket connections which don't work with BCB5 even though I have rebuilt one of the apps. and am using the socket server supplied with BCB5. So what I've done is to build the Adhoc project in \Examples\Midas which uses a DCOM connection and calls three methods on the app. server through its dispatch interface. I have no trouble seeing the remote provider name for the client dataset, and the app. runs as advertised until I use a socket connection. Perhaps if you build this app. as well, and it works, you might be able to figure out why your app. does not. If it doesn't work for you, but it works for me, there must be something amiss which is external to the application. Hope this helps a little. Regards, John Ajay Pathare wrote: > We have developed Web application Under C++Builder 5 and Oracle 8i using ADO > and MTS/COM+. App server working fine under NT 4, 98 and 95. Recently we > purchase new m/c with pre installed Windows 2000 Prof. and Windows 2000 > Advance Server. I deployed same App Server DLL under COM+ after rebuilding. > In designed mode I can connect TDCOMConnection obj successfully. But my > TClientDataSet provider list remains empty. I tried setting Provider Name > manually. After Setting Provider name if i set Active = true i get error RPC > fail. I tried reinstallation of Windows 2000 Prof./ Server and C++Builder 5 > twice. Same i tried and three new machine with Windows 2000, problem > continues. But same one is working fine with Windows 98/NT and my Oracle 8i > Server is Same (Windows 2000 Advance Server). Is any one tried using MIDAS > under COM+. > > Thanks In Advance > > Regards > > Ajay
Re: Provider list is empty
Author: Ajay Pathare
Date: Sat, 13 Jan 2001 19:27
Date: Sat, 13 Jan 2001 19:27
75 lines
3550 bytes
3550 bytes
Thanks John. Actually problem is only with WIndows 2000. I tried same project on Windows 98/NT. Project is working fine. But when am trying same conde On Win 2K i get empty provider list. I already loaded Win 2K service pack 1. New i am thinking of installing NT/98 instead of Win 2K. Regards Ajay John Graham <jgraham@salts.navy.mil> wrote in message news:3A6056D7.2C1C2132@salts.navy.mil... > Ajay, > > Maybe one or more of the RPC services on your work station and/or file server > needs to be started. It's also possible that running DCOMCNFG.EXE on either or > both machines to set connection parameters and the like might be helpful. > > I've just started converting my apps. from BCB4 to BCB5, so I'm no expert. > However, my BCB4 apps. all use socket connections which don't work with BCB5 > even though I have rebuilt one of the apps. and am using the socket server > supplied with BCB5. > > So what I've done is to build the Adhoc project in \Examples\Midas which uses a > DCOM connection and calls three methods on the app. server through its dispatch > interface. I have no trouble seeing the remote provider name for the client > dataset, and the app. runs as advertised until I use a socket connection. > > Perhaps if you build this app. as well, and it works, you might be able to > figure out why your app. does not. If it doesn't work for you, but it works for > me, there must be something amiss which is external to the application. > > Hope this helps a little. > > Regards, > John > > > Ajay Pathare wrote: > > > We have developed Web application Under C++Builder 5 and Oracle 8i using ADO > > and MTS/COM+. App server working fine under NT 4, 98 and 95. Recently we > > purchase new m/c with pre installed Windows 2000 Prof. and Windows 2000 > > Advance Server. I deployed same App Server DLL under COM+ after rebuilding. > > In designed mode I can connect TDCOMConnection obj successfully. But my > > TClientDataSet provider list remains empty. I tried setting Provider Name > > manually. After Setting Provider name if i set Active = true i get error RPC > > fail. I tried reinstallation of Windows 2000 Prof./ Server and C++Builder 5 > > twice. Same i tried and three new machine with Windows 2000, problem > > continues. But same one is working fine with Windows 98/NT and my Oracle 8i > > Server is Same (Windows 2000 Advance Server). Is any one tried using MIDAS > > under COM+. > > > > Thanks In Advance > > > > Regards > > > > Ajay >
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