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?

Answer 1

From MSDN:

The DateTimePicker control only supports Gregorian calendars.

But you can create a custom calendar, check out these articles (C#):

Windows Hijri Calendar

ASP.NET DatePicker User Control (Hijri / Gregorian)

How to create a Hijri Calendar control in .Net Framework 2.0