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notes:csharp:datetime [2016/09/07] admin [Operations] |
notes:csharp:datetime [2016/11/22] (current) admin [Operations] |
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// Obtain the number of days in February. | // Obtain the number of days in February. | ||
int daysInFebruary = DateTime.DaysInMonth(d.Year, 2); // 28 | int daysInFebruary = DateTime.DaysInMonth(d.Year, 2); // 28 | ||
+ | |||
+ | // Obtain the current week number. | ||
+ | DateTimeFormatInfo info = DateTimeFormatInfo.CurrentInfo; | ||
+ | Calendar cal = info.Calendar; | ||
+ | int weekNumber = cal.GetWeekOfYear(DateTime.Now, info.CalendarWeekRule, info.FirstDayOfWeek); | ||
// Add one hour and 15 minutes. | // Add one hour and 15 minutes. |