Get Date from week number

1. Function is created to get date from week number and day of the week

static DateTime GetDateFrmWkNumberAndDayOfWk(int weekNumber, int dayOfWeek)

    {

        DateTime jan1 = new DateTime(DateTime.Now.Year, 1, 1);

        int daysOffset = DayOfWeek.Monday - jan1.DayOfWeek;

        DateTime firstMonday = jan1.AddDays(daysOffset);

        var cal = CultureInfo.CurrentCulture.Calendar;

        int firstWeek = cal.GetWeekOfYear(jan1, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);

        var weekNum = weekNumber;

        if (firstWeek <= 1)

        {

            weekNum -= 1;

        }

        var result = firstMonday.AddDays(weekNum * 7 + dayOfWeek - 1);

        return result;

    }

2. pass week number and day of week to get date

DateTime theDate = GetDateFrmWkNumberAndDayOfWk(6, 1);