‫نمایش تاریخ بر حسب تعداد روزهای گذشته

 public string GetHour(DateTime lastdate)
        {
            PersianCalendar pc = new PersianCalendar();
            string result = " ساعت " + (((pc.GetHour(lastdate)) < 10) ? ("0" + pc.GetHour(lastdate).ToString()) : (pc.GetHour(lastdate)).ToString()) + ":" + (((pc.GetMinute(lastdate)) < 10) ? ("0" + pc.GetMinute(lastdate).ToString()) : (pc.GetMinute(lastdate)).ToString());
            return result;
        }

public string getDay(DayOfWeek day)
        {
            string Result = "";
            switch (day)
            {
                case DayOfWeek.Friday:
                    Result = "جمعه";
                    break;
                case DayOfWeek.Monday:
                    Result = "دوشنبه";
                    break;
                case DayOfWeek.Saturday:
                    Result = "شنبه";
                    break;
                case DayOfWeek.Sunday:
                    Result = "یکشنبه";
                    break;
                case DayOfWeek.Thursday:
                    Result = "پنج شنبه";
                    break;
                case DayOfWeek.Tuesday:
                    Result = "سه شنبه";

                    break;
                case DayOfWeek.Wednesday:
                    Result = "چهارشنبه";
                    break;
                default:
                    break;
            }
            return Result;
        }

getDay(pc.GetDayOfWeek(LastDate))

public string GetMounth(int month)
        {
            string[] monthInYear = {"فروردین","اردیبهشت","خرداد","تیر","مرداد","شهریور","مهر","آبان","آذر","دی","بهمن","اسفند" };
            return monthInYear[month-1];
        }

private void btnGetDate_Click(object sender, EventArgs e)
        {
            DateTime LastDate = DateTime.Parse(txtLastDate.Text);
            TimeSpan ts = DateTime.Now - LastDate;
            PersianCalendar pc = new PersianCalendar();
            int DifferenceYear = DateTime.Now.Year - LastDate.Year;
            int DiffernceMounth = DateTime.Now.Month - LastDate.Month;
            if(DateTime.Now.Month>LastDate.Month)
                DiffernceMounth = DateTime.Now.Month - LastDate.Month; 
            else
            DiffernceMounth=LastDate.Month-DateTime.Now.Month;
            int DifferenceDays = ts.Days;

            StringBuilder Result = new System.Text.StringBuilder("");
           
            if(DifferenceYear>0)
            {
                Result.Append(DifferenceYear.ToString() + " سال پیش"+" ، "+getDay(pc.GetDayOfWeek(LastDate))+" "+pc.GetDayOfMonth(LastDate).ToString()+" " + GetMounth(pc.GetMonth(LastDate))+" " +pc.GetYear(LastDate)+GetHour(LastDate));
            }
            else if(DiffernceMounth>0)
            {
                Result.Append(DiffernceMounth.ToString() + " ماه پیش" + " ، " + getDay(pc.GetDayOfWeek(LastDate)) + " " + pc.GetDayOfMonth(LastDate).ToString() + " " + GetMounth(pc.GetMonth(LastDate)) + " " + pc.GetYear(LastDate) + GetHour(LastDate));
            }
            else if(DifferenceDays>0)
                Result.Append(DifferenceDays.ToString() + " روز پیش" + " ، " + getDay(pc.GetDayOfWeek(LastDate)) + " " + pc.GetDayOfMonth(LastDate).ToString() + " " + GetMounth(pc.GetMonth(LastDate)) + " " + pc.GetYear(LastDate) + GetHour(LastDate));
            else if(DifferenceDays==0)
                Result.Append(" امروز" + " ، " + getDay(pc.GetDayOfWeek(LastDate)) + " " + pc.GetDayOfMonth(LastDate).ToString() + " " + GetMounth(pc.GetMonth(LastDate)) + " " + pc.GetYear(LastDate) + GetHour(LastDate));

            lblResult.Text = Result.ToString();
        }