public void CalculateSessionsLeft(int totalSessions)
{
if (StartDate == null)
{
return;
}
DateTime start = new DateTime(StartDate.Value.Ticks);
int ret = totalSessions;
while (ret > 0 && start <= DateTime.Now)
{
if (!ShiftedDates.Exists(x => x.Day == start.Day && x.Month == start.Month && x.Year == start.Year))
{
string currentDayName = ((DayOfWeek)start.DayOfWeek).ToString();
if (DaysPerWeek.Contains(currentDayName))
{
ret--;
}
}
start = start.AddDays(1);
}
SessionsLeft = ret;
}
public void CalculateEndDate(int totalSessions)
{
if (StartDate == null)
{
return;
}
DateTime start = new DateTime(StartDate.Value.Ticks);
int count = totalSessions;
while (count > 0)
{
if (!ShiftedDates.Exists(x => x.Day == start.Day && x.Month == start.Month && x.Year == start.Year))
{
string currentDayName = ((DayOfWeek)start.DayOfWeek).ToString();
if (DaysPerWeek.Contains(currentDayName))
{
count--;
if (count == 0)
{
EndDate = start;
}
}
}
start = start.AddDays(1);
}
}