private HDateTime(DateTimeOffset dto, HTimeZone htz)
{
m_dtoParsed = dto;
TimeZone = htz;
date = HDate.make(dto.Year, dto.Month, dto.Day);
time = HTime.make(dto.Hour, dto.Minute, dto.Second, dto.Millisecond);
}
/** Make a range which encompasses the previous year. */
public static HDateTimeRange lastYear(HTimeZone tz)
{
HDate today = HDate.today();
HDate first = HDate.make(today.Year - 1, 1, 1);
HDate last = HDate.make(today.Year - 1, 12, 31);
return(make(first, last, tz));
}
/** Make a range which encompasses the current month. */
public static HDateTimeRange thisMonth(HTimeZone tz)
{
HDate today = HDate.today();
HDate first = HDate.make(today.Year, today.Month, 1);
HDate last = HDate.make(today.Year, today.Month, DateTime.DaysInMonth(today.Year, today.Month));
return(make(first, last, tz));
}
/** Make a range which encompasses the previous month. */
public static HDateTimeRange lastMonth(HTimeZone tz)
{
HDate today = HDate.today();
DateTime dttoday = new DateTime(today.Year, today.Month, today.Day);
DateTime dtLastMonth = dttoday.AddMonths(-1);
HDate lastMonth = HDate.make(dtLastMonth.Year, dtLastMonth.Month, dtLastMonth.Day);
HDate first = HDate.make(lastMonth.Year, lastMonth.Month, 1);
HDate last = HDate.make(lastMonth.Year, lastMonth.Month, DateTime.DaysInMonth(lastMonth.Year, lastMonth.Month));
return(make(first, last, tz));
}
// Parse from string fomat "YYYY-MM-DD" or raise FormatException (ParseException)
public static HDate make(string s)
{
DateTime dtParsed = DateTime.Now;
if (!DateTime.TryParseExact(s, "yyyy'-'MM'-'dd",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out dtParsed))
{
throw new FormatException("Invalid date string: " + s);
}
return(HDate.make(dtParsed.Year, dtParsed.Month, dtParsed.Day));
}
// Constructor with date and time (to sec) fields
public static HDateTime make(int year, int month, int day, int hour, int min, int sec, HTimeZone tz)
{
return(make(HDate.make(year, month, day), HTime.make(hour, min, sec), tz));
}