le 10/02/2000 13:50, Gordon, Douglas � [EMAIL PROTECTED] a
�crit�:
> I have a table with four columns that uses custom draw procedures. Each row
> is associated with a database record, and various fields in a record are
> used to display information in that row. The issue is that my custom draw
> procedure is called for each column in a particular row, so currently it has
> to query the record, lock it, get the data for the specific column, and
> unlock it. That's four record accesses to display each row. This seems like
> excessive overhead that could be avoided. What I was thinking was that if I
> can assume (dangerous word!) that the column draw procedures are always
> called in ascending sequence, then the draw procedure for column 0 could
> save the display information for the other columns in a static structure,
> and I would only have to do a record access once per row instead of once per
> column per row.
>
> On the other hand, assumptions like these are what can get you into trouble.
> It may work like this today, but not be guaranteed to work that way in a
> future O/S release. Any ideas?
>
> Doug Gordon
You could save the last loaded record number in a global variable.
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