{C#} 資料庫取出Datetime，日期比大小

(DateTime.Compare(t1, t2) > 0) 指===> ("t1 > t2");
(DateTime.Compare(t1, t2) == 0) 指===> ("t1 == t2");
(DateTime.Compare(t1, t2) < 0) 指===> ("t1 < t2");

轉自：http://www.programmer-club.com/showSameTitleN/csharp/5147.html