private static EraInfo[]? IcuGetJapaneseEras()
{
if (GlobalizationMode.Invariant)
{
return(null);
}
Debug.Assert(!GlobalizationMode.UseNls);
string[]? eraNames;
if (!CalendarData.EnumCalendarInfo("ja-JP", CalendarId.JAPAN, CalendarDataType.EraNames, out eraNames))
{
return(null);
}
List <EraInfo> eras = new List <EraInfo>();
int lastMaxYear = GregorianCalendar.MaxYear;
int latestEra = Interop.Globalization.GetLatestJapaneseEra();
for (int i = latestEra; i >= 0; i--)
{
DateTime dt;
if (!GetJapaneseEraStartDate(i, out dt))
{
return(null);
}
if (dt < s_calendarMinValue)
{
// only populate the Eras that are valid JapaneseCalendar date times
break;
}
eras.Add(new EraInfo(i, dt.Year, dt.Month, dt.Day, dt.Year - 1, 1, lastMaxYear - dt.Year + 1, eraNames ![i], GetAbbreviatedEraName(eraNames, i), ""));
private static EraInfo[]? GetJapaneseEras()
{
if (GlobalizationMode.Invariant)
{
return(null);
}
string[] eraNames;
if (!CalendarData.EnumCalendarInfo("ja-JP", CalendarId.JAPAN, CalendarDataType.EraNames, out eraNames))
{
return(null);
}
string[] abbrevEnglishEraNames;
if (!CalendarData.EnumCalendarInfo("en", CalendarId.JAPAN, CalendarDataType.AbbrevEraNames, out abbrevEnglishEraNames))
{
return(null);
}
List <EraInfo> eras = new List <EraInfo>();
int lastMaxYear = GregorianCalendar.MaxYear;
int latestEra = Interop.Globalization.GetLatestJapaneseEra();
for (int i = latestEra; i >= 0; i--)
{
DateTime dt;
if (!GetJapaneseEraStartDate(i, out dt))
{
return(null);
}
if (dt < s_calendarMinValue)
{
// only populate the Eras that are valid JapaneseCalendar date times
break;
}
eras.Add(new EraInfo(i, dt.Year, dt.Month, dt.Day, dt.Year - 1, 1, lastMaxYear - dt.Year + 1,
eraNames[i], GetAbbreviatedEraName(eraNames, i), abbrevEnglishEraNames[i]));
lastMaxYear = dt.Year;
}
// remap the Era numbers, now that we know how many there will be
for (int i = 0; i < eras.Count; i++)
{
eras[i].era = eras.Count - i;
}
return(eras.ToArray());
}
