给定日期转换成周数

Question

给定日期转换成周数
具体是这样的,在VS2005中,我想把文本框的值2008-11-5,转换成周数45,让其显示45周,
网上很多都是转星期几的,请各位大虾帮忙,万分感谢

Answer 1

int i = DateTime.Now.DayOfYear / 7;

Answer 2

int week = DateTime.Parse("2008-11-5").DayOfYear / 7 + 1;

Answer 3

DayOfWeek dy = (Convert.ToDateTime(string.Format("{0}-1-1 0:0:0", DateTime.Now.Year.ToString()))).DayOfWeek;
            int j=0;
            switch(dy)
            {
                case DayOfWeek.Sunday:
                    j=0;
                    break;
                case DayOfWeek.Monday:
                    j = 1;
                    break;
                case DayOfWeek.Tuesday:
                    j = 2;
                    break;
                case DayOfWeek.Wednesday:
                    j = 3;
                    break;
                case DayOfWeek.Thursday:
                    j = 4;
                    break;
                case DayOfWeek.Friday:
                    j = 5;
                    break;
                case DayOfWeek.Saturday:
                    j = 6;
                    break;            }
            int i = (DateTime.Now.DayOfYear+j)/7+1;

Answer 4

谢谢各位的帮助...特别是wonture,已经搞定,再次感谢