public virtual string GetPeriod(DateTime start, DateTime end, TimeSpan duration)
{
if (end < start)
{
throw new ArgumentOutOfRangeException("end");
}
bool startHasTimeOfDay = TimeTool.HasTimeOfDay(start);
// no duration - schow start date (optionally with the time part)
if (duration == TimeSpec.MinPeriodDuration)
{
return(startHasTimeOfDay ? GetDateTime(start) : GetShortDate(start));
}
// within one day: show full start, end time and suration
if (TimeCompare.IsSameDay(start, end))
{
return(GetDateTime(start) + StartEndSeparator + GetLongTime(end) + DurationSeparator + GetDuration(duration));
}
// show start date, end date and duration (optionally with the time part)
bool endHasTimeOfDay = TimeTool.HasTimeOfDay(end);
bool hasTimeOfDays = startHasTimeOfDay || endHasTimeOfDay;
string startPart = hasTimeOfDays ? GetDateTime(start) : GetShortDate(start);
string endPart = hasTimeOfDays ? GetDateTime(end) : GetShortDate(end);
return(startPart + StartEndSeparator + endPart + DurationSeparator + GetDuration(duration));
}
private int CalcWeeks()
{
if (TimeCompare.IsSameDay(Date1, Date2))
{
return(0);
}
DateTime week1 = TimeTool.GetStartOfWeek(Date1, FirstDayOfWeek);
DateTime week2 = TimeTool.GetStartOfWeek(Date2, FirstDayOfWeek);
if (week1.Equals(week2))
{
return(0);
}
return((int)(week2.Subtract(week1).TotalDays / TimeSpec.DaysPerWeek));
}
private int CalcMonths()
{
if (TimeCompare.IsSameDay(Date1, Date2))
{
return(0);
}
int compareDay = Date2.Day;
int compareDaysPerMonth = Calendar.GetDaysInMonth(Year1, Month1);
if (compareDay > compareDaysPerMonth)
{
compareDay = compareDaysPerMonth;
}
DateTime compareDate = new DateTime(Year1, Month1, compareDay,
Date2.Hour, Date2.Minute, Date2.Second, Date2.Millisecond);
if (Date2 > Date1)
{
if (compareDate < Date1)
{
compareDate = compareDate.AddMonths(1);
}
}
else
{
if (compareDate > Date1)
{
compareDate = compareDate.AddMonths(-1);
}
}
return
(((Year2 * TimeSpec.MonthsPerYear) + Month2) -
((Calendar.GetYear(compareDate) * TimeSpec.MonthsPerYear) + Calendar.GetMonth(compareDate)));
}
public string GetInterval(DateTime start, DateTime end,
IntervalEdge startEdge, IntervalEdge endEdge, TimeSpan duration)
{
if (end < start)
{
throw new ArgumentOutOfRangeException("end");
}
StringBuilder sb = new StringBuilder();
// interval start
switch (startEdge)
{
case IntervalEdge.Closed:
sb.Append(IntervalStartClosed);
break;
case IntervalEdge.Open:
sb.Append(UseIsoIntervalNotation ? IntervalStartOpenIso : IntervalStartOpen);
break;
}
bool addDuration = true;
bool startHasTimeOfDay = TimeTool.HasTimeOfDay(start);
// no duration - schow start date (optionally with the time part)
if (duration == TimeSpec.MinPeriodDuration)
{
sb.Append(startHasTimeOfDay ? GetDateTime(start) : GetShortDate(start));
addDuration = false;
}
// within one day: show full start, end time and suration
else if (TimeCompare.IsSameDay(start, end))
{
sb.Append(GetDateTime(start));
sb.Append(StartEndSeparator);
sb.Append(GetLongTime(end));
}
else
{
bool endHasTimeOfDay = TimeTool.HasTimeOfDay(start);
bool hasTimeOfDays = startHasTimeOfDay || endHasTimeOfDay;
if (hasTimeOfDays)
{
sb.Append(GetDateTime(start));
sb.Append(StartEndSeparator);
sb.Append(GetDateTime(end));
}
else
{
sb.Append(GetShortDate(start));
sb.Append(StartEndSeparator);
sb.Append(GetShortDate(end));
}
}
// interval end
switch (endEdge)
{
case IntervalEdge.Closed:
sb.Append(IntervalEndClosed);
break;
case IntervalEdge.Open:
sb.Append(UseIsoIntervalNotation ? IntervalEndOpenIso : IntervalEndOpen);
break;
}
// duration
if (addDuration)
{
sb.Append(DurationSeparator);
sb.Append(GetDuration(duration));
}
return(sb.ToString());
}