App_Code/common2/common/Date.cs

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using System;

namespace RM.Common
{    
    public class Date
    {        
        public static string getUnixTime(DateTime DT){
            DateTime dt1970 = new DateTime(1970,1,1);
            long TS = DT.Ticks - dt1970.Ticks;
            return TS.ToString();
        }

        public static string getUnixTime()
        {
            return getUnixTime(DateTime.Now);
        }

        public static string GetDateStr(object objDT, string strFormat)
        {
            DateTime DT = Convert.ToDateTime(objDT);
            if (strFormat == "") strFormat = "yyyyMMddHHmmss";
            return DT.ToString(strFormat);
        }

        public static string GetDateStr(DateTime DT,string strFormat)
        {
            if (strFormat == "") strFormat = "yyyyMMddHHmmss";
            return DT.ToString(strFormat);
        }

        public static string GetDateStr()
        {
            return GetDateStr(DateTime.Now,"");
        }

        public static string GetDateStrRnd()
        {
            Random rnd = new Random();
            return GetDateStr(DateTime.Now, "yyMMddHHmmss") + rnd.Next(999);
        }

        public static int getWeek(DayOfWeek WeekDay)
        {
            switch (WeekDay)
            {
                case DayOfWeek.Sunday: return 0;
                case DayOfWeek.Monday: return 1;
                case DayOfWeek.Tuesday: return 2;
                case DayOfWeek.Wednesday: return 3;
                case DayOfWeek.Thursday: return 4;
                case DayOfWeek.Friday: return 5;
                case DayOfWeek.Saturday: return 6;
                default: return 0;
            }
        }

        public static int getWeek()
        {
            return getWeek(DateTime.Now.DayOfWeek);
        }