问题
What is the simplest way to print c# DateTime in Persian? currently I'm using :
static public string PersianDateString(DateTime d)
{
CultureInfo faIR = new CultureInfo("fa-IR");
faIR.DateTimeFormat.Calendar = new PersianCalendar();
return d.ToString("yyyy/MM/dd", faIR);
}
Which throws an exception
Not a valid calendar for the given culture
回答1:
First you must note that you cannot put a Jalali Date in a DateTime object, you will get an exception in dates like "1392/02/31".
So you must handle your Jalali dates in a string or a custom DateTime type.
I suggest that you keep your date as a Gregorian date at all time, and convert it when you need to show it.
This is an extension method to get Persian Date from a DateTime object.
public static string GetPersianDate(this DateTime date)
{
PersianCalendar jc = new PersianCalendar();
return string.Format("{0:0000}/{1:00}/{2:00}", jc.GetYear(date), jc.GetMonth(date), jc.GetDayOfMonth(date));
}
//How to use it:
DateTime d = new DateTime(2014, 05, 21);
string s = d.GetPersianDate(); //1393/02/31
And then when you have a Jalali date in string format here is the extension method to get the Gregorian date:
public static DateTime GetDateTimeFromJalaliString(this string jalaliDate)
{
PersianCalendar jc = new PersianCalendar();
try
{
string[] date = jalaliDate.Split('/');
int year = Convert.ToInt32(date[0]);
int month = Convert.ToInt32(date[1]);
int day = Convert.ToInt32(date[2]);
DateTime d = jc.ToDateTime(year, month, day, 0, 0, 0, 0, PersianCalendar.PersianEra);
return d;
}
catch
{
throw new FormatException("The input string must be in 0000/00/00 format.");
}
}
//How to use it:
string pdate = "1392/02/31";
DateTime dateFromJalali = pdate.GetDateTimeFromJalaliString(); //{5/21/2014 12:00:00 AM}
And now to handle extra functions:
Week name:
public static string GetDayOfWeekName(this DateTime date)
{
switch (date.DayOfWeek)
{
case DayOfWeek.Saturday: return "شنبه";
case DayOfWeek.Sunday: return "يکشنبه";
case DayOfWeek.Monday: return "دوشنبه";
case DayOfWeek.Tuesday: return "سه شنبه";
case DayOfWeek.Wednesday: return "چهارشنبه";
case DayOfWeek.Thursday: return "پنجشنبه";
case DayOfWeek.Friday: return "جمعه";
default: return "";
}
}
//How to use it:
DateTime date = DateTime.Now;
string wname = date.GetDayOfWeekName();
Month name:
public static string GetMonthName(this DateTime date)
{
PersianCalendar jc = new PersianCalendar();
string pdate = string.Format("{0:0000}/{1:00}/{2:00}", jc.GetYear(date), jc.GetMonth(date), jc.GetDayOfMonth(date));
string[] dates = pdate.Split('/');
int month = Convert.ToInt32(dates[1]);
switch (month)
{
case 1: return "فررودين";
case 2: return "ارديبهشت";
case 3: return "خرداد";
case 4: return "تير";
case 5: return "مرداد";
case 6: return "شهريور";
case 7: return "مهر";
case 8: return "آبان";
case 9: return "آذر";
case 10: return "دي";
case 11: return "بهمن";
case 12: return "اسفند";
default: return "";
}
}
//How to use it:
DateTime date = DateTime.Now;
string mname = date.GetMonthName();
回答2:
Try like this:
public static string PersianDateString(DateTime d)
{
CultureInfo faIR = new CultureInfo("fa-IR");
return d.ToString("yyyy/MM/dd", faIR);
}
and if you changed the format to for example "yyyy MMM ddd"
you would get 2011 جوييه الأحد
.
回答3:
You can use this:
static public string PersianDateString(DateTime d)
{
var pc = new PersianCalendar();
return string.Format("{0:0000}/{1:00}/{2:00}",
pc.GetYear(d), pc.GetMonth(d), pc.GetDayOfMonth(d));
}
来源:https://stackoverflow.com/questions/6807234/how-to-print-datetime-in-persian-format-in-c-sharp