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ZEOS 7.2.1-rc and Lazarus 1.8.0RC1 rUnknown FPC 3.1.1 i386-win32-win32/win64

I have a very simple sample on Github https://github.com/afriess/schnell/tree ... asicAccess.

It connects with ado to the Access Db with a DSN with a ZConnection and a ZTable & Datasource & DB-Grid. When i connect, i see the data from the Access Table and can navigate without a problem. But if i set the ZConnection.Connected to false i got a EOleException.

How can i avoid this ?
Andreas

Hello Andreas,

the MS Access / Jet Engine provider for ADO / OLE is clumsy at best. I had my share of problems on working with it. I think I resolved to using Zeos 7.3 and its OLEDB driver. Not sure, if that helps though.
Could you provide a smallish Access / Jet Engine database that I can use for testing with your github application?

With best regards,

Jan

Sorry, i forgot to say, the Access DB is the test_1.tpdb8. Its a mdb.

https://github.com/afriess/schnell/blob ... st_1.TPDB8

To make it more clear, i copied the as an mdb.

@af0815,

At me, it works for:
Lazarus 1.6.4-Win32; ZEOS 7.2, 7.3 svn 3986.

Michal

miab3 wrote:At me, it works for:

Code: Select all

Provider=Microsoft.ACE.OLEDB.12.0;

Michal

With THIS Provider for me too. There must be a diffence between the providers. So the use of of ODBC DSN in Win 10 looks outdated.

THX
Andreas