[DUG]: TDBGrid problem

[j.walsh at niwa.co.nz]

Thanks Karl,

I'd wondered how you copy a TDataset.  I'll give this a try.  Incidentally I have just 
tried putting the code in the TDataset OnAfterScroll event, and this appears also 
to do the trick.

Cheers
Jeremy

From:           	"Karl @ Work" <karlreynolds at xtra.co.nz>
To:             	"'NZ Borland Developers Group - Delphi List'" <delphi at ns3.123.co.nz>
Subject:        	RE: [DUG]: TDBGrid problem
Date sent:      	Wed, 14 Jun 2006 01:30:29 -0400
Send reply to:  	karlreynolds at xtra.co.nz,
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> >>
> I have a editor which is built using a TDBGrid component and stores
> x,y coordinates in incremental form ie. as deltax, deltay in each
> table row.  I need to accumulate the deltax,deltay incremental data
> stored in the grid in order to plot coordinates of the point
> represented by the current table row.
> 
> The following code is called from the Dataset OnDataChange event to do
> this accumulation.  It does this OK, but has an unfortunate side
> effect -  it also suppresses the response to any keypress events
> effectively preventing editing of the data.
> 
> I'm struggling to find a way of avoiding this problem.  Can anyone
> help? <<
> 
> Create another cds, and within your OnDataChange use CloneCursor(cds1,
> False, False), and iterate through that one instead.
> 
> Cheers,
> Carl
> 
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===========================================================
Jeremy Walsh
National Institute of Water and Atmospheric Research
PO Box 8602
Riccarton
Christchurch
New Zealand
64-3-3437877   Phone
64-3-3485548   Fax
j.walsh at niwa.co.nz   email
===========================================================