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New VFP feature I didn't know about. Did you?
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20/07/2000 23:07:11
 
 
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Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
New VFP feature I didn't know about. Did you?
Divers
Thread ID:
00395202
Message ID:
00395202
Vues:
37
Hey UT folks -
Sometimes I feel like a total idiot savant with VFP. Some features I know as well as the people who designed them, then I hit something like this .. which is probably something everyone but me knew about.

Here's the feature I didn't know about, but came across by accident:

Did you know that when you issue a SCAN/ENDSCAN VFP automatically flips a SELECT back to the correct file when hitting the ENDSCAN without you having to explicitly doing so?

Here's an example program:

SELECT j1

SCAN
SELECT j2
LOCATE FOR ord = j1->rec
IF NOT FOUND()
APPEND BLANK
REPLACE ord with j1->rec
ENDIF
ENDSCAN

Now I would have expected this to bomb, because I didn't issue a 'SELECT j1' after the REPLACE and there's no 'ord' field on the 'j2' file. But when the program hits the ENDSCAN, it reverts to 'j1' automatically!

Please someone tell me this is new and not been around since VFP 3 or FoxPro 1.0. Yeesh!
-- John Kiernan
"Maybe Amelia Earhart was just stealing the plane".
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