Get week number from datetime picker

Question

Hi Guys,

Is there a way to get the week number of the year from a datetime picker value and display the number on a label, label1 for instance?

As an example, if I was to select todays date, in theory it would display '26' on my label.

Can that be done? I know datetime pickers can display number of day, but not week for some reason.

Ramesh Maruthi · Answer

Cool, looks great !!

mike Delvotti · Answer

Thanks, I ended up using the below from your answer: CalendarWeekRule weekRule = CalendarWeekRule .FirstFourDayWeek; DayOfWeek firstWeekDay = DayOfWeek .Monday; Calendar calendar = System.Threading. Thread .CurrentThread.CurrentCulture.Calendar; int currentWeek = calendar.GetWeekOfYear(dateTimePicker1.Value, weekRule, firstWeekDay); label1.Text = String .Format( "{1:00}" , dateTimePicker1.Value, currentWeek);

Ramesh Maruthi · Answer

Hey Mike, No Problem buddy ... Please try it the below method, you need to pass the date to the method and it returns the week number. public static int GetWeekNumber ( DateTime dtPassed ) { CultureInfo ciCurr = CultureInfo. CurrentCulture ; int weekNum = ciCurr. Calendar . GetWeekOfYear ( dtPassed, CalendarWeekRule. FirstFourDayWeek , DayOfWeek. Monday ) ; return weekNum; }

Rajeesh Menoth · Answer

Hi, Ref the following : http://stackoverflow.com/questions/27710092/get-week-number-for-the-given-date-c-sharp?lq=1

mike Delvotti · Answer

Hi, Thanks for reply. Sorry I should of mentioned that I'm using C# in Windows forms application.

Ramesh Maruthi · Answer

Hi Mike, Please see the below jsfiddle link: http://jsfiddle.net/h7Xr3/ To get the week number : $('#datepicker').datepicker({ onSelect: function (dateText, inst) { $('#weekNumber').val($.datepicker.iso8601Week(new Date(dateText))); } });