[lazarus] TDBGrid question

hernan.et at pg.com hernan.et at pg.com
Tue May 27 00:44:59 EDT 2003

Hi all,

It was indeed not a very good decision to determine ahead of time the number of
records for the TDBGrid, as was pointed out by Marc. But I am also thinking how
the grids are being designed by "SAP Gui systems". Wherein there is a set limit
of 9999 in SAP 4.6D.  I don't know if you guys buy out that we set a limit for
DBGrids .. et al... in the same way that SAP grids are designed (at least, based
on my understanding).

Though, I also like the idea of displaying only the data when needed. But I
think we need help from you guys as to understanding why is it that TDBGrid
cannot scroll backwards specially for tables with more 10 records(at least for
Firebird. )



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From: Jesus Reyes <jesusrmx at yahoo.com.mx> on 05/23/2003 04:19 PM GMT
             Jesus Reyes           To:   lazarus at miraclec.com                 
 <jesusrmx at yahoo.com.mx>           Cc:    (bcc: Yoyong Hernan-ET/PGI)         
                           Subject:      Re: [lazarus] TDBGrid question       
     05/24/2003 12:19 AM                                                      
       Please respond to                                                      
    lazarus at miraclec.com                                                      

 --- Mattias Gaertner <nc-gaertnma at netcologne.de> escribió: > On Thu,
22 May 2003 19:43:18 -0600
> "Jesus Reyes" <jesusrmx at yahoo.com.mx> wrote:
> > I thought that I corrected those details, later I will try to
> verify this,
> > thanks.
> >
> > Meanwhile feel free to do any changes later if you like we can
> insert
> > them, I wanted to get the scrollbars working but for the moment I
> cant, I
> > tried to do a package with the new package system and I detected
> some
> > painting problems while in form designing,
> There is a problem with non visual components. When the form move
> or some
> gtk internal layout widgets resize the coordinates are not always
> correct
> and the icons are not properly moved.

Oh, in fact i was talking of dbgrids painting at design time and
specifically when the dbgrid has some content to show, I can see the
proble you describe, that little shaking icons I thought it was an
animation effect ;)

> > I packaged a TMySQLDataset component and
> > for the first time a see the grid filling a design time !.
> Unfortunatelly
> > TDataSet derivatives seems to have problems at the form streaming
> time :(.
> > I'm not in the office so I cant post the backtraces but it seem
> its a RTTI
> > issue.
> Is this a new bug or the one found last week?
> Mattias

Maybe i should update my sources, my last update was when one propery
(database?) duplicate was corrected

Jesus Reyes A.

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