>>>I have a grid class (modify from TASTRADE) that calculates Sum of a column but it gives me GPF. If I take out the 'CALCULATE' statement, everything works fine. Is this a Microsoft bug or not?
>>>
>>>My CalExpr is: SUM(carddet_vw.qty*carddet_vw.price)
>>>
>>>
>>>LOCAL i,lnOldArea, ;
>>> lnOldRecNo, ;
>>> luKey, ;
>>> lcOrder,;
>>> lnResult,;
>>> lcExpression
>>>
>>>lnResult = 0.00
>>>IF EMPTY(THIS.CalExpr)
>>> return lnResult
>>>ELSE
>>> IF EMPTY(this.RecordSource)
>>> RETURN lnResult
>>> ENDIF
>>>
>>> lcExpression= " " + THIS.CalExpr + " "
>>> lnOldArea = SELECT()
>>> SELECT (this.RecordSource)
>>> lnOldRecNo = IIF(EOF(), 0, RECNO())
>>> lcOrder = ORDER()
>>> luKey = IIF(!EMPTY(lcOrder), EVAL(lcOrder), "")
>>>
>>> IF !EMPTY(lcOrder) AND SEEK(luKey)
>>> calculate &lcExpression
>>> WHILE luKey = EVAL(lcOrder) ;
>>> TO lnResult
>>> ELSE
>>> CALCULATE &lcExpression
>>> TO lnResult
>>> ENDIF
>>>
>>> IF lnOldRecNo 0
>>> GO lnOldRecNo
>>> ENDIF
>>> SELECT (lnOldArea)
>>>ENDIF
>>>
>>>return lnResult
>>
>>I think it's safer to 'calculate' using SELECT-SQL. Here, you wouldn't worry about work areas, pointers, etc.
>
>
>Can I use SQL-SELECT? Doesn't SQL-SELECT takes value from disk? I am using parameterized view and it is on buffering mode 5.

Soory, I didn't see that you mean view.