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At design time, when table/query is closed and when assigning a value to the IndexFieldName property (after the mydac login prompt) I get this exeception :

EDatabaseError
exception message : QRDevis: couldn't perform this task on an closed dataset.

If I open the table/query I can assign a value to the IndexFieldName property BUT when compiling and lauching the project I get this exception again (normal behaviour as my connection to mysql should be closed)

I had a similar problem after I upgraded from 3.55 to 4. (D7)

When I opened my project, i had one table open (TMyTable), I had the same error and delphi could not open without ignoring. After ignoring and rebuild it seemed to work, but i came across an error that wasn't there in 3.55.

Both in design-time as in runtime filtering using AddWhere (runtime) or MyTableEditor (designtime) the FinalSQL has the order statement prior to the where clausule, resulting in an error.

CoreLab gurus will have some code to modify .... They will hate us (i'm joking)

Fixed. We will try to make this fix available at current week.

thank you