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Grid columncount goes to zero!
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows 7
Divers
Thread ID:
01522860
Message ID:
01522862
Vues:
67
Another option is to use a view instead of a cursor.

>This trick is usually called a Safe Select:
>In the form's load event, you create a cursor, which you set to control the grid, something like
>Select * from yourtable into cursor curGrid where .f. readwrite
>Then when you want to fill the grid
>Select * from yourtable where somecondition into cursor curdummy
>thisform.lockscreen=.F.
>Select curGrid
>Zap
>Append from dbf('curdummy')
>yourgrid.refresh
>thisform.lockscreen=.T.
>The clue here, is that the grid is never "disconnected" from it's controlsource.
>
>
>>Hi All:
>>
>>I constructed a grid on the fly with a columncount of 6 and set all the properties. Everything works. The recordsource is 'curbrowsemodal' and the recordsourcetype is 1.
>>
>>Now I want to give the user the ability to decide the sort order.
>>
>>As soon as I execute the following, the coulumnn =count goes to zero!
>>
>>
>>IF thisform.opgSortDirection.option1.Value = 1   &&Ascending
>>	SELECT * ;
>>	FROM curBrowseModal ;
>>	ORDER BY cSortSeqASC ASC ;
>>	INTO CURSOR curBrowseModal
>>ELSE
>>	SELECT * ;
>>	FROM curBrowseModal ;
>>	ORDER BY cSortSeqDSC DESC ;
>>	INTO CURSOR curBrowseModal
>>ENDIF
>>
>>
>>If I try to solve the problem by setting the recordsource to curBrowseModalS and executing the following, I get an empty grid!
>>
>>
>>IF thisform.opgSortDirection.option1.Value = 1   &&Ascending
>>	SELECT * ;
>>	FROM curBrowseModal ;
>>	ORDER BY cSortSeqASC ASC ;
>>	INTO CURSOR curBrowseModalS
>>ELSE
>>	SELECT * ;
>>	FROM curBrowseModal ;
>>	ORDER BY cSortSeqDSC DESC ;
>>	INTO CURSOR curBrowseModalS
>>ENDIF
>>
>>
>>And if I create the curBrowseModalS ahead of time, I get a zero columncount!
>>
>>
>>
>>
>>Thanks,
>>
>>Yossi
ICQ 10556 (ya), 254117
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