[C #] Comparison of datetime time sizes

C # Two operations to implement a DateTime time-size comparison

1. Direct comparison

String strTime1 = DateTime.Now.ToString (); String strTime2 = DateTime.Now.AddDays (-1).   ToString ();   DateTime dt1 = Convert.todatetime (strTime1);   DateTime DT2 = Convert.todatetime (strTime2); if (Dt1 > DT2) {//Other actions}

2. Use the CompareTo method to achieve a comparison of two time sizes

String strTime1 = DateTime.Now.ToString (); String strTime2 = DateTime.Now.AddDays (-1).   ToString ();   DateTime dt1 = Convert.todatetime (strTime1);   DateTime DT2 = Convert.todatetime (strTime2);   int n = dt1.compareto (DT2); if (n = = true) {//Other action}

C # DateTimePicker Time format is set to 00:00:00 seconds or 23:59:59

String stime = Convert.todatetime (this.dtpStart.Value).   ToString ("yyyyMMdd000000"); String etime = Convert.todatetime (this.dtpEnd.Value). ToString ("yyyyMMdd235959");

PS : Gets the stime time format as yyyyMMdd000000, such as 20150525000000

Get etime time format for yyyyMMdd235959, e.g. 20150525235959

This article from "Flower Blossom Fall" blog, declined reprint!

[C #] Comparison of datetime time sizes