/// <summary>Gets the number of business days in between, i.e. the number of business days in ]<paramref name="date1"/>, <paramref name="date2"/>]
/// or ]<paramref name="date2"/>, <paramref name="date1"/>] <c>without</c> taking into account any business day convention.
/// </summary>
/// <param name="date1">The first date.</param>
/// <param name="date2">The second date.</param>
/// <returns>
/// The number of business days between <paramref name="date1"/> and <paramref name="date2"/> including the latest date if this is a business day.
/// </returns>
/// <exception cref="ArgumentException">Thrown, if for <paramref name="date1"/> or <paramref name="date2"/>the current
/// calendar is not defined, i.e. <paramref name="date1"/> or <paramref name="date2"/> is less than <see cref="FirstDate"/>
/// or greater than <see cref="LastDate"/>.</exception>
public int GetNumberOfBusinessDaysInBetween(DateTime date1, DateTime date2)
{
if (date2 < date1)
{
DateTime tempDateTime = date1;
date1 = date2;
date2 = tempDateTime;
}
if ((date1 < FirstDate) || (date2 > LastDate))
{
throw new ArgumentException("The holiday calendar " + Name.ToString() + " causes a fatal error. The date " + date1.ToString("d") + " or " + date2.ToString("d") + " lies not between the earliest date " + FirstDate.ToString("d") + " and the latest date " + LastDate.ToString("d") + " for which holiday informations are available.");
}
int numberOfBusinessDaysInBetween = 0;
/* if the time difference is small, i.e. one week, we call 'IsBusinessDay', otherwise we take
* into account the number of weekend days first and add the number of public holidays later: */
if (date2.Subtract(date1).Days <= 7)
{
// for example: friday -> monday, saturday -> monday, in any other case +1 day:
DateTime date = m_WeekendRepresentation.GetNextWorkingDay(date1);
while (date <= date2)
{
if (IsBusinessDayForNonWeekendDay(date))
{
numberOfBusinessDaysInBetween++;
}
// again: friday -> monday, saturday -> monday, in any other case +1 day:
date = m_WeekendRepresentation.GetNextWorkingDay(date);
}
return(numberOfBusinessDaysInBetween);
}
/* count the number of days != Saturdays and Sundays [for a 'standard' weekend] first: */
numberOfBusinessDaysInBetween = m_WeekendRepresentation.GetNumberOfWorkingDaysInBetween(date1, date2);
return(numberOfBusinessDaysInBetween - GetNumberOfNonWeekendHolidaysInBetween(date1, date2));
}
/// <summary>
/// Returns a identifier with small letter as start
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
protected string StartWithSmallLetter(IdentifierString name)
{
return(name.ToString().Substring(0, 1).ToLowerInvariant() + name.ToString().Substring(1));
}
