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Using same CursorAdapter over again
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À
25/06/2010 08:38:11
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9 SP1
Divers
Thread ID:
01470556
Message ID:
01470571
Vues:
54
>Hi,
>
>I am testing how I could implement CA as a public object (or referenced by application object) such that it can be used over and over for different SQL commands. For example, when creating reports I need to send to DB a SQL Select and get back the cursor for the report. So my idea is to use the same CA object for all reports.
>
>Here is what I tried:
>
>1. Created CA (DataSourceType'ADO'), set all the necessary ADODB properties. Then I call CursorFill() and get the cursor for the report.
>2. Then I close the cursor (use in ("mycursorname"))
>
>To get cursor for another report I do the following
>1. Set new value of alias for the existing CursorAdapter
>2. Set new value of SelectCmd for the existing CursorAdapter
>3. Call CursorFill().
>I get another cursor with no problem.
>
>My question is, do you see any potential problems with this approach?
>
>TIA.

I don't know if this is really bad approach, but I know that we created a separate CA for each form (or each particular operation). The only exception was CASearch where I set SelectCMD on the fly (still same form).

The rest of my CAs always were pre-defined and with fixed commands.
If it's not broken, fix it until it is.


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