سوال: تاریخ امروز در چندمین هفته سال جاری قرار دارد؟(تاریخ شمسی) [بایگانی]

4m41991

دوشنبه 06 آذر 1396, 11:23 صبح

آقا حل شد.
از این کد استفاده کردم.
using System.Globalization;

private void button1_Click(object sender, EventArgs e)
{
DateTime? ds = dateTimeSelector1.Value;
DateTime dt = ds.Value;

CultureInfo myCI = new CultureInfo("fa-IR");
Calendar myCal = myCI.Calendar;
CalendarWeekRule myCWR = myCI.DateTimeFormat.CalendarWeekRule;
DayOfWeek myFirstDOW = myCI.DateTimeFormat.FirstDayOfWeek;

textBox1.Text = string.Format("Therefore, the current week is Week {0} of the current year.", myCal.GetWeekOfYear(dt, myCWR, myFirstDOW));

}

که البته قبلش یه کلاس با اسم PersianCalendar تو برنامه ایجاد کردم و کد زیر رو داخلش وارد کردم :

using System;using System.Globalization;
using System.Reflection;
using System.Threading;

public class Cultures
{
public static void InitializePersianCulture()
{
InitializeCulture("fa-ir", new[] { "ی", "د", "س", "چ", "پ", "ج", "ش" },
new[] { "یکشنبه", "دوشنبه", "سه شنبه", "چهارشنبه", "پنجشنبه", "جمعه", "شنبه" },
new[]
{
"فروردین", "اردیبهشت", "خرداد", "تیر", "مرداد", "شهریور", "مهر", "آبان", "آذر", "دی",
"بهمن", "اسفند", ""
},
new[]
{
"فروردین", "اردیبهشت", "خرداد", "تیر", "مرداد", "شهریور", "مهر", "آبان", "آذر", "دی",
"بهمن", "اسفند", ""
}, "ق.ظ. ", "ب.ظ. ", "yyyy/MM/dd", new PersianCalendar());
}

public static void InitializeCulture(string culture, string[] abbreviatedDayNames, string[] dayNames,
string[] abbreviatedMonthNames, string[] monthNames, string amDesignator,
string pmDesignator, string shortDatePattern, Calendar calendar)
{
var calture = new CultureInfo(culture);
var info = calture.DateTimeFormat;
info.AbbreviatedDayNames = abbreviatedDayNames;
info.DayNames = dayNames;
info.AbbreviatedMonthNames = abbreviatedMonthNames;
info.MonthNames = monthNames;
info.AMDesignator = amDesignator;
info.PMDesignator = pmDesignator;
info.ShortDatePattern = shortDatePattern;
info.FirstDayOfWeek = DayOfWeek.Saturday;
var cal = calendar;
var type = typeof(DateTimeFormatInfo);
var fieldInfo = type.GetField("calendar", BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic);
if (fieldInfo != null)
fieldInfo.SetValue(info, cal);
var field = typeof(CultureInfo).GetField("calendar", BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic);
if (field != null)
field.SetValue(calture, cal);
Thread.CurrentThread.CurrentCulture = calture;
Thread.CurrentThread.CurrentUICulture = calture;
CultureInfo.CurrentCulture.DateTimeFormat = info;
CultureInfo.CurrentUICulture.DateTimeFormat = info;
}
}