How to change the calendar type in dateTimePicker?

Question

i try to change the calendar type in dateTimePicker from gregorian to hijri but i cant cuz the system calender type it's gregorian .

i try this code

 CultureInfo ci = new CultureInfo("ar-SA");

 DateTimeFormatInfo info = ci.DateTimeFormat;

  dateTimePicker1.Format = System.Windows.Forms.DateTimePickerFormat.Custom;

 dateTimePicker1.CustomFormat = info.ShortDatePattern + " " + info.ShortTimePattern;

but not working !?

how i can change it in my App?

Abdullah Al-Salem · Answer

This is the best solution https://youtu.be/B9G6LpwKEWQ You can change the calendar type of Windows in this way https://www.youtube.com/watch?v=P5z9mCxNsJE

Vulpes · Answer

If you look at the Remarks section of the documentation for that API function: http://msdn.microsoft.com/en-us/library/windows/desktop/dd374048(v=vs.85).aspx you'll see that: "This function only affects the user override portion of the calendar settings. It does not set the system defaults. " But, even if it did, it wouldn't alter the fact that the Windows Forms DateTimePicker control only supports Gregorian calendars. For proof, scroll down to the Note in the documentation for this control: http://msdn.microsoft.com/en-us/library/system.windows.forms.datetimepicker(v=vs.110).aspx

Max Albish · Answer

you can change the datetimepicker to hijri when you change the system calender type to hijri i want change system caleder type in c# I found this function from Kernel32.dll: BOOL SetCalendarInfo( _In_ LCID Locale, _In_ CALID Calendar, _In_ CALTYPE CalType, _In_ LPCTSTR lpCalData ); How can I invoke this method within a C# application?

Vulpes · Answer

Although, as I said earlier, the 'standard' DateTimePicker control only supports the Gregorian calendar, I've found a custom control here for Windows Forms which supports the Hijri calendar: http://www.codeproject.com/Articles/23226/Windows-Hijri-Calendar

Ankur Jain · Answer

Hi, if its not working, then you can use another third party control with you application, its easy to use, highly customizable, ajax supported and free of cost and its better than any other datepicker...take a look... http://www.obout.com/calendar/calendar_islamic.aspx and if you want to do it with date time picker then check these thread, it will help u a lot... http://www.codeproject.com/Articles/570197/ASP-NET-DatePicker-User-Control-Hijri-Gregorian-Sh http://www.devasp.net/net/articles/display/276.html http://www.codeproject.com/Articles/13664/Farsi-Library-Working-with-Dates-Calendars-and-Dat if its useful please don't forget to mark it as answer....

Max Albish · Answer

thx its very helpful but i want to set calender type !

Max Albish · Answer

how ican change it in c#?

Abhay Shanker · Answer

Check the below link can be helpful http://www.microsoft.com/middleeast/msdn/ArabicCalendar.aspx

Vulpes · Answer

Unfortunately, you can't. The DateTimePicker control only supports the Gregorian calendar.