In stead of being clever and figure this out ourselves, we decided that “AX knows best”. So basically we produce some dates and let AX tell us if they are in the week we are looking for.
The only part where we try to be clever is where we figure out what date to start asking on and not just start in the beginning of the year.
Here is what we came up with:
static void Week2Ddate(Args _args)
Week week = 1;
Yr yr = 2009;
Date testDate = dateStartYr(mkDate(01, 01, yr)) + ((week - 1) * 7);
if (weekOfYear(testDate) != week)
if (week > weekOfYear(testDate))
weekdays = 7;
weekdays = -7;
while (weekOfYear(testDate) != week)
testDate = testDate + weekdays;
info (strFmt("Dato: %1", dateStartWk(testDate)));
Any comments with better ideas are welcome. And well, in the end of the day we found that we didn't need the algorithm anyway, but it was fun to think about how to do it.