I use DOA 3.4.6.4, and I upgrade my ap from d5 to d6. Ever since I did it and everything
went wrong after that.
I open a form of my ap project, and a message shows "Not logged on" to me and all the db controls in the form lost dataset links all at once. And the nightmares started, every time I try to maintain any form of the project, I had to re-link the connections between datasets and db controls. It's a terrible thing, and I try to solve this problem, and can't find a way to do it.
It made me really mad a lot.
Please help me with it!

Strange. Did something happen to the data module that contains the TOracleSession instance that is connected to the database? Can you open that data module and verify its connection?

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Marco Kalter
Allround Automations

I use a Data Module and open it before I open any form which would be maintained.
The OracleSession is alive and keep connection is true in the first place.
Please help me!

Maybe you can try to copy this Delphi 5 project to a new Delphi 6 directory, and only copy the .pas, .dfm , .dpr and .res files? It may be that your project is pointing to old Delphi 5 directories. You could also verify that the .dpr file does not contain any absolute paths.

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Marco Kalter
Allround Automations