private bool IsDayEven(string pdate)//1396/04/01
{
var year =Convert.ToInt32(pdate.Substring(0, 4));
var month = Convert.ToInt32(pdate.Substring(5, 2));
var day = Convert.ToInt32(pdate.Substring(8, 2));
var dt = new DateTime(year, month, day, new PersianCalendar());
return dt.DayOfWeek== DayOfWeek.Saturday||
dt.DayOfWeek == DayOfWeek.Monday||
dt.DayOfWeek == DayOfWeek.Wednesday;
}