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Calculate the week Days ,week Ends between two date intervals In Ax 2009


How to Calculate the total number of weeks,weekends or count of  Sundays in a given date interval.. 


static void calcDays(Args _args)
{
    FromDate    fromDate    = today();
    ToDate      toDate      = mkdate(31,01,2011);
    WeekDays    weekDay = WeekDays::Sunday; // the day we search after
    int         days;
    int         cntSpecDay;
    int         leadIn;
    int         leadOut;
    ;
    days = fromDate - toDate; // days difference
    //Calculate the No.Of weeks in given Date Intervals
    leadIn = any2int(fromDate - toDate) /7;
    cntSpecDay = days / 7; // how many sundays in complete weeks
    if (dayOfWk(fromDate) <= weekDay)
    {
        cntSpecDay++; // the day we search is in lead in week
    }
    if (dayOfWk(toDate) >= weekDay)
    {
        cntSpecDay++; // the day we search is in lead out week
    }
info(strfmt("%1 is %2 times embedded between %3 and %4", weekDay,cntSpecDay, fromDate, toDate));
  print days;
  print leadIn;
  pause;
}

Out put:
======
786== Days
112== Weeks
Sunday is 113 times embedded between 3/27/2013 and 1/31/2011

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