Article View: borland.public.cppbuilder.database.ado
Article #914Calculating fields
From: Michele Santucci
Date: Wed, 02 Mar 2005 13:48
Date: Wed, 02 Mar 2005 13:48
36 lines
1934 bytes
1934 bytes
Hello NG,
I have a master record with these fields:
IDLocation
Latitude
Longitude
Seastate
Surface
and a detail record with these fields:
IDLocationLayer
IDLocation
Depth
Temperature
Salinity
I would like to add 3 fields to the master record:
MaximumDepth (Max Depth among relative details fields)
AverageTemperature (Average temperature among relative details fields)
AverageSalinity (Average salinity among relative details fields)
I tried adding a Calculated Field to the master adodataset but I noticed
that
if I move the cursor on a different record the underlying detail dataset is
not
updated before the OnCalcField event is raised... how can I manage this????
--
Michele Santucci
===================
Celin Avio S.r.l.
Software Dev. Manager
--------------------------------------
tel. +390187564080
Via Fontevivo 21/M
19126 La Spezia
===================
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