/// <summary>
/// The method gives the number of the day in the year.
/// </summary>
/// <param name="time">The
/// <see cref="T:DateTime"/> that specifies a
/// date.
/// </param>
/// <returns>An integer representing the day of the year,
/// starting with 1.</returns>
public static int GetDayOfYear(DateTime time)
{
int rd = CCFixed.FromDateTime(time);
int year = year_from_fixed(rd);
int rd1_1 = fixed_from_dmy(1, 1, year);
return(rd - rd1_1 + 1);
}
/// <summary>
/// Adds years to the given date.
/// </summary>
/// <param name="time">The
/// <see cref="T:DateTime"/> to which to add
/// months.
/// </param>
/// <param name="years">The number of years to add.</param>
/// <returns>A new <see cref="T:DateTime"/> value, that
/// results from adding <paramref name="years"/> to the specified
/// DateTime.</returns>
public static DateTime AddYears(DateTime time,
int years)
{
int rd = CCFixed.FromDateTime(time);
int day, month, year;
dmy_from_fixed(out day, out month, out year, rd);
year += years;
int maxday = GetDaysInMonth(year, month);
if (day > maxday)
{
day = maxday;
}
rd = fixed_from_dmy(day, month, year);
DateTime t = CCFixed.ToDateTime(rd);
return(t.Add(time.TimeOfDay));
}
/// <summary>
/// A method that creates the
/// <see cref="T:DateTime"/> from the parameters.
/// </summary>
/// <param name="year">An integer that gives the year
/// </param>
/// <param name="month">An integer that specifies the month.
/// </param>
/// <param name="day">An integer that specifies the day.
/// </param>
/// <param name="hour">An integer that specifies the hour.
/// </param>
/// <param name="minute">An integer that specifies the minute.
/// </param>
/// <param name="second">An integer that gives the second.
/// </param>
/// <param name="milliseconds">An integer that gives the
/// milliseconds.
/// </param>
/// <returns>A
/// <see cref="T:system.DateTime"/> representig the date and time.
/// </returns>
public static DateTime ToDateTime(int year, int month, int day,
int hour, int minute, int second, int milliseconds)
{
return(CCFixed.ToDateTime(fixed_from_dmy(day, month, year),
hour, minute, second, milliseconds));
}
/// <summary>
/// The method gives the number of the year of the specified
/// date.
/// </summary>
/// <param name="time">The
/// <see cref="T:DateTime"/> that specifies a
/// date.
/// </param>
/// <returns>An integer representing the year.
/// </returns>
public static int GetYear(DateTime time)
{
return(year_from_fixed(CCFixed.FromDateTime(time)));
}
/// <summary>
/// The method gives the number of the month of the specified
/// date.
/// </summary>
/// <param name="time">The
/// <see cref="T:DateTime"/> that specifies a
/// date.
/// </param>
/// <returns>An integer representing the month,
/// starting with 1.</returns>
public static int GetMonth(DateTime time)
{
return(month_from_fixed(CCFixed.FromDateTime(time)));
}
/// <summary>
/// Gets the of the month from <paramref name="time"/>.
/// </summary>
/// <param name="time">The
/// <see cref="T:DateTime"/> that specifies a
/// date.
/// </param>
/// <returns>An integer giving the day of months, starting with 1.
/// </returns>
public static int GetDayOfMonth(DateTime time)
{
return(day_from_fixed(CCFixed.FromDateTime(time)));
}
public override DayOfWeek GetDayOfWeek(DateTime time)
{
int rd = CCFixed.FromDateTime(time);
return((DayOfWeek)CCFixed.day_of_week(rd));
}
