Calculating Average Days in Crystal Reports using a Visual FoxPro driver

Question

Post Author: sher
CA Forum: Crystal Reports
I use the following code in a crystal XI report to calculate average days between two dates using the sql server driver.  It worked fine.  I used the same code in a crystal XI program using a visual FoxPro driver.  It does not work.  Can someone help me with code needed to calculate average days using a visual foxpro driver?
cast ( Avg( DateDiff( DD, CREDENTIALING.APPLICATION_RECEIVED, ENTITYASSIGNMENTS.STATUSASOF )) As int ) AS AvgDaysFromReceipt,
cast ( Sum( DateDiff( DD,CREDENTIALING.APPLICATION_RECEIVED, ENTITYASSIGNMENTS.STATUSASOF)) As int )  AS TotDaysFromReceipt

Answer 1

Not sure if this is any simpler but you could save this as a custom function, that way you will have to modify it once a year for the holidays.
numbervar days;
datevar date1 := minimum({?My Parameter});
datevar date2 := maximum({?My Parameter});
days := DateDiff ("d", date1, date2) -
DateDiff ("ww", date1, date2, crSaturday) -
DateDiff ("ww", date1, date2, crSunday);    // this will give you the number of business days
                                                    // (excluding Saturdays and Sundays) for a given date range.
// then, for each holiday, you can enter lines like this
if date(2008,01,01) in {?My Parameter} then days := days - 1;
// The final tally of DAYS should give you the total business days in a date range.
totext(days,0);
where {?My Parameter} is the date range.