On Tue, Apr 19, 2011 at 17:46, Miguel A. Risco <mris...@gmail.com> wrote:
> Hi Alexander, your Project is ok, but if your put a tbutton and fill the 
> array on the Onclick event and not in the constructor of the form then the 
> series is not drawing after the zoom on the second point. If I comment the 
> line " if not RectIntersectsRect(ext, ParentChart.CurrentExtent) then exit;" 
> in the TASeries.pas unit then the series is drawing properly.

Ah, I see now.
You need to call ds.Reset before ds.EndUpdate.
Maybe Reset should be called automatically by EndUpdate...

-- 
Alexander S. Klenin

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