/// <param name="row">zero-based row number</param>
/// <param name="column">zero-based column number</param>
private static PersianDate monthModeRowColumnToDate(int row, int column, PersianDate displayDate)
{
int year = displayDate.Year;
int month = displayDate.Month;
PersianDate firstDay = new PersianDate(year, month, 1);
int fstCol = 2 + (int)firstDay.PersianDayOfWeek;
int fstRow = fstCol == 1 ? 2 : 1;
int dayDifference = (row) * 7 + column + 1 - ((fstRow - 1) * 7 + fstCol);
return(firstDay.AddDays(dayDifference));
}
private static PersianDate MonthModeRowColumnToDate(int row, int column, PersianDate firstDayInMonth)
{
int firstCol = (int)firstDayInMonth.PersianDayOfWeek + 1;
int dayDifference = (row * 7) + column - firstCol;
if (firstDayInMonth == PersianDate.MinValue && dayDifference < 0)
{
return(null);
}
if (firstDayInMonth.Year == PersianDate.MaxValue.Year &&
firstDayInMonth.Month == PersianDate.MaxValue.Month &&
dayDifference > 9)
{
return(null);
}
return(firstDayInMonth.AddDays(dayDifference));
}
/// <param name="row">zero-based row number</param>
/// <param name="column">zero-based column number</param>
private static PersianDate monthModeRowColumnToDate(int row, int column, PersianDate displayDate)
{
int year = displayDate.Year;
int month = displayDate.Month;
PersianDate firstDay = new PersianDate(year, month, 1);
int fstCol = 2 + (int)firstDay.PersianDayOfWeek;
int fstRow = fstCol == 1 ? 2 : 1;
int dayDifference = (row) * 7 + column + 1 - ((fstRow - 1) * 7 + fstCol);
return firstDay.AddDays(dayDifference);
}