C#比较时分秒大小，终止分钟默认加十分钟，解决跨天、跨月、跨年的情况

   private void cmbInHostimes_SelectedIndexChanged(object sender, EventArgs e)
        {
            DataRow[] dr;
            if (chkMid.Checked == true)
            {
                dr = leaveHosRecordData.Tables[].Select("INHOSTIMES = " + cmbInHostimes.Text, "CURRENTINHOSMARK");
            }
            else
            {
                dr = leaveHosRecordData.Tables[].Select("CURRENTINHOSMARK = " + cmbInHostimes.Text, "CURRENTINHOSMARK");
            }

            if (dr.Length > )
            {
                txtStartDate.DateTime = Convert.ToDateTime(dr[]["ENTERHOSDATE"]);
                txtStartTime.Time = Convert.ToDateTime(Convert.ToDateTime(dr[]["ENTERHOSDATE"]).ToString("yyyy-MM-dd") + " 00:00:00");
                txtEndTime.Time = Convert.ToDateTime(dr[dr.Length - ]["LEAVEHOSDATE"]).AddMinutes();
                currentInHosMark1 = Convert.ToInt32(dr[]["CURRENTINHOSMARK"]);
                //Case#28375
                DateTime leavehosDate = Convert.ToDateTime(dr[dr.Length - ]["LEAVEHOSDATE"]);//出院时间
                TimeSpan ts1 = new TimeSpan(leavehosDate.Hour, leavehosDate.Minute, leavehosDate.Second);
                TimeSpan ts2 = new TimeSpan(, , );
                //比较时分秒大小
                if (ts1 > ts2)
                {
                    txtEndDate.DateTime = Convert.ToDateTime(dr[dr.Length - ]["LEAVEHOSDATE"]).AddDays();
                }
                else
                {
                    txtEndDate.DateTime = Convert.ToDateTime(dr[dr.Length - ]["LEAVEHOSDATE"]);
                }
            }
        }