[SOLVED] EDatabaseError: Missing (compatible) underlying dataset, can
not open
lazarus / 16-Databases

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lainz · 2018-02-19 15:04

Hi, the issue is the mentioned in the subject of this post.

First I can't share the code since is propietary and don't know how to
replicate the code. I can share you only this small subset, and
hopefully this can help to understand the problem:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i if not
Assigned(Promociones) then     exit;  if (not tblRenglones.IsEmpty)
and (not Clientes.IsEmpty) then    try      if Assigned(Promociones)
and not Promociones.Active then      try         Promociones.Active :=
True;      except         exit;      end;
Promociones: Promotions in spanish
Clientes: Customers in spanish, basically that is not empty and there
is no problem with that
lblRenglones is not empty basically there is no problem with that

Promociones: TBufDataset;

Basically the code goes until this line:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
Promociones.Active := True;
And then the exception appears.

My question is why if there is a try..except that does not works and
exception it's fired exactly in that line (7 of snippet)?

If you need more details please ask and I will try to provide them.

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lainz · 2018-02-19 15:57

Solved, database version problem.