public static Date FindNearest(Date date, SkipQuantumEnum skip)
{
Date result;
switch (skip)
{
case SkipQuantumEnum.DAYS:
return(date);
case SkipQuantumEnum.WEEKS:
result = date;
while (result.DayOfWeek != TimesCommon.Current.StartToWeek)
{
result = result.AddDays(-1);
}
return(result);
case SkipQuantumEnum.MONTHS:
return(new Date(date.Year, date.Month, 1));
case SkipQuantumEnum.QUARTERS:
result = new Date(date.Year, date.Month, 1);
while (result.Month != 1 && result.Month != 4 && result.Month != 7 && result.Month != 10)
{
result = result.AddMonths(-1);
}
return(result);
case SkipQuantumEnum.YEARS:
return(new Date(date.Year, 1, 1));
default:
throw new NotSupportedException(String.Format("Unsupported option: {0}", skip));
}
}
private static Date Add(Date date, int length, SkipQuantumEnum quantum)
{
switch (quantum)
{
case SkipQuantumEnum.DAYS:
return(date.AddDays(length));
case SkipQuantumEnum.WEEKS:
return(date.AddDays(length * 7));
case SkipQuantumEnum.MONTHS:
return(date.AddMonths(length));
case SkipQuantumEnum.QUARTERS:
return(date.AddMonths(length * 3));
case SkipQuantumEnum.YEARS:
return(date.AddYears(length));
default:
throw new NotSupportedException(String.Format("Unsupported option: {0}", quantum));
}
}
public DateDuration(SkipQuantumEnum quantum, int length)
{
Quantum = quantum;
Length = length;
}