日期相減, 算出天數

參考自:
http://www.blueshop.com.tw/board/show.asp?subcde=BRD20060913100918D18&fumcde=

DateTime STime = DateTime.Parse("2005-11-08"); //起始日
DateTime ETime = DateTime.Parse("2005-12-28"); //結束日
TimeSpan Total = ETime.Subtract(STime); //日期相減

Response.Write(Total.Days.ToString() + "
"); //共幾天
Response.Write(Total.Hours.ToString() + "
"); //又幾小時
Response.Write(Total.Minutes.ToString() + "
"); //又幾分

Response.Write(Total.TotalDays.ToString() + "
"); //總共多少天
Response.Write(Total.TotalHours.ToString() + "
"); //總共多少小時
Response.Write(Total.TotalSeconds.ToString() + "
"); //總共多少分