public static int MinutesIff(PersianDateTime date1, PersianDateTime date2)
{
int defday = DayIff(date1, date2);
if (defday == 0)// hatman dar yek roz hastand
{
TimeSpan start = new TimeSpan(date1.Hour, date1.Minute, date1.Secend);
TimeSpan end = new TimeSpan(date2.Hour, date2.Minute, date2.Secend);
return(defday * 1440 + Convert.ToInt32((end.TotalMinutes - start.TotalMinutes)));
}
else if (defday > 0)//roze dovom bozorgtar az roze aval ast
{
TimeSpan start = new TimeSpan(date1.Hour, date1.Minute, date1.Secend);
TimeSpan end = new TimeSpan(date2.Hour, date2.Minute, date2.Secend);
return(defday * 1440 + Convert.ToInt32((end.TotalMinutes - start.TotalMinutes)));
}
else if (defday < 0)// roze aval bozorgtar az roze dovom ast
{
TimeSpan end = new TimeSpan(date1.Hour, date1.Minute, date1.Secend);
TimeSpan start = new TimeSpan(date2.Hour, date2.Minute, date2.Secend);
return(defday * 1440 + Convert.ToInt32((end.TotalMinutes - start.TotalMinutes)));
}
//defminutes=((date2.Hour-date2.Hour))*60+(date2.Minute)
return(0);
}
public static string TostringForGrid(PersianDateTime date, PersianDateType format)
{
if (date == null)
{
return("---");
}
return(date.ToString(format));
}
/// <summary>
/// mohasebe tedad roz haye beyne 2 roz, if date1>date2 then retunr negetiv number else posetive number
/// </summary>
/// <param name="date1"></param>
/// <param name="date2"></param>
/// <returns></returns>
public static int DayIff(PersianDateTime date1, PersianDateTime date2)
{
PersianDateTime temp;
int zarib = 1;
int miladicompaire = DateTime.Compare(date1.Datetime, date2.Datetime);
if (miladicompaire == 0)
{
return(0);
}
if (miladicompaire > 0)
{
temp = date1;
date1 = date2;
date2 = temp;
zarib = -1;
}
int deffday = 0;
int deffyear;
if (date2.Year == date1.Year)// dar yek sal hastand
{
return(date2.Dayofyear - date1.Dayofyear);
}
else // dar yek sal nistand
{
deffyear = date1.Year;
if (IsLeap(date1.Year))
{
deffday = 366 - date1.Dayofyear;
}
else
{
deffday = 365 - date1.Dayofyear;
}
deffyear++;
while (deffyear < date2.Year)
{
if (IsLeap(deffyear))
{
deffday = deffday + 366;
}
else
{
deffday = deffday + 365;
}
deffyear++;
}
return((deffday + date2.Dayofyear) * zarib);
}
}
/// <summary>
/// gereftane tarikh akharin roze mah
/// </summary>
/// <param name="currentmonthdate">yek roz az un mahi ke akharin rozash ra mikhaheed</param>
/// <returns>tarikh akharin roz un mah</returns>
public static PersianDateTime GetLastDayOfMonth(PersianDateTime currentmonthdate)
{
PersianDateTime result = new PersianDateTime(currentmonthdate.Year, currentmonthdate.Month, currentmonthdate.Day);
int lastday = currentmonthdate.Day;
int year = currentmonthdate.Year;
while (true)
{
result.AddDays(1);
if (result.Month != currentmonthdate.Month)
{
break;
}
lastday++;
}
result.AddDays(-1);
return(result);
}
/// <summary>
/// aya sale kabise ast ya kheyr
/// </summary>
/// <param name="year"></param>
/// <returns></returns>
public static bool IsLeap(int year)
{
PersianDateTime x = new PersianDateTime(year, 12, 27);
int lastdaye = 27;
while (true)
{
x.AddDays(1);
lastdaye++;
if (x.Month != 12)
{
break;
}
}
if (lastdaye - 1 == 30)
{
return(true);
}
return(false);
}
/// <summary>
/// kam kardan ye TimeSpanBatis be in date
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public PersianDateTime Subtract(PersianDateTime date, TimeSpan value)
{
return(new PersianDateTime(date.Datetime.Subtract(value)));
}
/// <summary>
/// ezafe kardan ye TimeSpanBatis be in date
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static PersianDateTime Add(PersianDateTime date, TimeSpan value)
{
return(new PersianDateTime(date.Datetime.Add(value)));
}