WinRT中的WeekNumber

Question

i wrote a program in VS 2012 for windows phone using silverlight, now i am trying to import my program to VS 2015 Universal app. In my program i need to get the week number of given date, for his i wrote followin function

public int WeekNumber(DateTime date)
{
   GregorianCalendar cal = new GregorianCalendar(GregorianCalendarTypes.Localized);
   return cal.GetWeekOfYear(date, CalendarWeekRule.FirstDay, DayOfWeek.Monday);
}

But in winrt, there is no GregorianCalendar, i also try to create calender this way:

Windows.Globalization.Calendar cal = new Windows.Globalization.Calendar();

and then try to get weekofyear, but there is no such method.

Any idea how to get weeknumber of given date in winRT.

thanks a lot.

Answer 1

I found out that, when using Windows.Globalization.Calendar , you don't have GetWeekOfYear method, but if you use System.Globalization.Calendar , then you get the GetWeekOfYear method working. Based on this, below code working as needed.

public int WeekNumber(DateTime date)
{          
    DateTimeFormatInfo dfi = DateTimeFormatInfo.CurrentInfo;
    System.Globalization.Calendar cal = dfi.Calendar;
    return cal.GetWeekOfYear(date, CalendarWeekRule.FirstDay, DayOfWeek.Monday);
}