public virtual DateTime GetToDate(DateTime dt, System.Globalization.Calendar calendar)
{
if (this.Order == 1 && this.FromMonth > this.ToMonth)
{
if (calendar.GetMonth(dt) == 12)
{
//در اولین بازه محدوده، ماه شروع در سال قبل قرار گرفته
dt = calendar.AddYears(dt, 1);
}
}
if (this.Order == 12 && this.FromMonth > this.ToMonth)
{
if (calendar.GetMonth(dt) == 12)
{
//در آخرین بازه محدوده، ماه پایان در سال بعد قرار گرفته
dt = calendar.AddYears(dt, 1);
}
}
else if (this.Order == 0 && this.FromMonth >= this.ToMonth)
{
//بازه سالانه است و پایان در سال بعد قرار گرفته
dt = calendar.AddYears(dt, 1);
}
if (calendar is PersianCalendar)
{
if (calendar.IsLeapYear(calendar.GetYear(dt)) && this.ToMonth == 12 && this.ToDay == 29)
{
return(calendar.ToDateTime(calendar.GetYear(dt), this.ToMonth, 30, 0, 0, 0, 0));
}
else
{
return(calendar.ToDateTime(calendar.GetYear(dt), this.ToMonth, this.ToDay, 0, 0, 0, 0));
}
}
else
{
if (calendar.IsLeapYear(dt.Year) && this.ToMonth == 2 && this.ToDay == 28)
{
//اگر سال کبسه بود و برای ماه فوریه روز 28 انتخاب شده بود
//به صورت خودکار با روز 29 جایگزین می شود
return(calendar.ToDateTime(dt.Year, this.ToMonth, 29, 0, 0, 0, 0));
}
else
{
return(calendar.ToDateTime(dt.Year, this.ToMonth, this.ToDay, 0, 0, 0, 0));
}
}
}
/// <summary>
/// Checks that each day from the given start year to the end year (inclusive) is equal
/// between the BCL and the Noda Time calendar. Additionally, the number of days in each month and year
/// and the number of months (and leap year status) in each year is checked.
/// </summary>
internal static void AssertEquivalent(Calendar bcl, CalendarSystem noda, int fromYear, int toYear)
{
// We avoid asking the BCL to create a DateTime on each iteration, simply
// because the BCL implementation is so slow. Instead, we just check at the start of each month that
// we're at the date we expect.
DateTime bclDate = bcl.ToDateTime(fromYear, 1, 1, 0, 0, 0, 0);
for (int year = fromYear; year <= toYear; year++)
{
Assert.AreEqual(bcl.GetDaysInYear(year), noda.GetDaysInYear(year), "Year: {0}", year);
Assert.AreEqual(bcl.GetMonthsInYear(year), noda.GetMonthsInYear(year), "Year: {0}", year);
for (int month = 1; month <= noda.GetMonthsInYear(year); month++)
{
// Sanity check at the start of each month. Even this is surprisingly slow.
// (These three tests make up about 20% of the total execution time for the test.)
Assert.AreEqual(year, bcl.GetYear(bclDate));
Assert.AreEqual(month, bcl.GetMonth(bclDate));
Assert.AreEqual(1, bcl.GetDayOfMonth(bclDate));
Assert.AreEqual(bcl.GetDaysInMonth(year, month), noda.GetDaysInMonth(year, month),
"Year: {0}; Month: {1}", year, month);
Assert.AreEqual(bcl.IsLeapYear(year), noda.IsLeapYear(year), "Year: {0}", year);
for (int day = 1; day <= noda.GetDaysInMonth(year, month); day++)
{
LocalDate nodaDate = new LocalDate(year, month, day, noda);
Assert.AreEqual(bclDate, nodaDate.ToDateTimeUnspecified(),
"Original calendar system date: {0:yyyy-MM-dd}", nodaDate);
Assert.AreEqual(nodaDate, LocalDate.FromDateTime(bclDate, noda));
Assert.AreEqual(year, nodaDate.Year);
Assert.AreEqual(month, nodaDate.Month);
Assert.AreEqual(day, nodaDate.Day);
bclDate = bclDate.AddDays(1);
}
}
}
}
/// <summary>
/// Tries to work out a roughly-matching calendar system for the given BCL calendar.
/// This is needed where we're testing whether days of the week match - even if we can
/// get day/month/year values to match without getting the calendar right, the calendar
/// affects the day of week.
/// </summary>
internal static CalendarSystem CalendarSystemForCalendar(Calendar bcl)
{
// Yes, this is horrible... but the specific calendars aren't available to test
// against in the PCL
switch (bcl.GetType().Name)
{
case "GregorianCalendar": return CalendarSystem.Iso;
case "HijriCalendar": return CalendarSystem.IslamicBcl;
case "HebrewCalendar": return CalendarSystem.HebrewCivil;
case "PersianCalendar": return bcl.IsLeapYear(1) ? CalendarSystem.PersianSimple : CalendarSystem.PersianAstronomical;
case "UmAlQuraCalendar": return CalendarSystem.UmAlQura;
case "JulianCalendar":
return CalendarSystem.Julian;
default:
// No idea - we can't test with this calendar...
return null;
}
}