public DateTime GetExactStartDateByClassDay(DateTime start_date, ClassDayEnum day)
{
var start_weekday = (int)start_date.DayOfWeek;
switch (day)
{
case ClassDayEnum._2_4_6: //weekday chan
{
if (start_weekday == 6) //Sat->2
{
start_date = start_date.AddDays(2);
}
else if (start_weekday % 2 == 0) //Sun->2, 3->4, 5->6
{
start_date = start_date.AddDays(1);
}
break;
}
case ClassDayEnum._3_5_7: //weekday le
{
if (start_weekday == 0) //Sun->3
{
start_date = start_date.AddDays(2);
}
else if (start_weekday % 2 == 1) //2,4,6
{
start_date = start_date.AddDays(1);
}
break;
}
}
return(start_date);
}
public static string GetText_ClassDayEnum(ClassDayEnum filter)
{
switch (filter)
{
case ClassDayEnum._2_4_6:
{
return("2,4,6");
}
case ClassDayEnum._3_5_7:
{
return("3,5,7");
}
case ClassDayEnum.Sunday:
{
return("Sunday");
}
}
return("");
}
private List <DateTime> GetDatesBySessionStartEnd(DateTime start_date, DateTime end_date, ClassDayEnum day)
{
start_date = GetExactStartDateByClassDay(start_date, day);
var dates = new List <DateTime>();
var curr_date = start_date;
while (curr_date <= end_date)
{
dates.Add(curr_date);
curr_date = GetNextDateByCurrentDate(curr_date);
}
return(dates);
}
private List <DateTime> GetDatesBySessionStartEnd(DateTime start_date, int duration, ClassDayEnum day)
{
start_date = GetExactStartDateByClassDay(start_date, day);
var dates = new List <DateTime>();
var curr_date = start_date;
for (int i = 1; i <= duration; i++)
{
dates.Add(curr_date);
curr_date = GetNextDateByCurrentDate(curr_date);
}
return(dates);
}
