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Article View: borland.public.cppbuilder.database.multi-tier
Article #1624

ClientDataSet - TProvider Communication Problem...

#1624
From: Panagiotis L. Staikos
Date: Mon, 05 Jul 1999 00:00
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I have add at server Side (Remote DataModule)
a TQuery Component and a TProvider(TProvider or TDataSetProvider)
Component.
I export the TProvider Component and it's DataSet property points to
TQuery. The TQuery component has a SQL Statement.
From Client Side i have a MIDAS, ClientDataset, DataSource, DBGrid
Components.
While i am connecting with my Server,when  i change the active property
of The ClientDataSet to true
(ClientDataSet Provider Property points to the Above TProvider)
i get the Error :
'src->QueryInterface(GetIID(),(LPVOID*)(&intf))': No such interface
supported
@ C:\Program Files\Borland\CBuilder4\invlude\vcl\utilcls.h/2014
Press [Y]es to terminate, [N]o to continue and [C]ancel to Debug.

All the Providers from the server are shown in the drop-down list in the
Provider property
of the ClientDataSet Component!!!

Prior the patch#1 i did't have any problem....
More spesific the code that i use it works with C++Builder3, and
C++Builder4 withou the path#1!!!
How is the right connection between ClientDataSet and a Provider?

I don't understand this error beacuse i think that all is ok.....
(This problem was stop me since a week...)
May i have a answer to this problem?

Thanks. Panagiotis Staikos from Greece.
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From: "Panagiotis L. Staikos" <pstaiko@ekt.gr>
Subject: ClientDataSet - TProvider Communication Problem...
Date: 1999/07/05
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