It’s not cutting edge but it’s something I forget about every 6 months and have to look up or figure out again. So here it is. Also I’m not convinced that it is the best way so if anyone knows a better one feel free to let me know.
ok I have written a battery of tests changing both days around and this is the real deal.
public DateTime getNextSpecificDay(DateTime d1, DayOfWeek day)
{
var diff = day - d1.DayOfWeek;
if(diff <= 0)
{
diff = diff + 7;
}
return d1.AddDays(diff);
}
this will find the next sunday. if you pass in a sunday it will find the next one not the current one.
