I am converting ADODB
namespace code to SqlClient
. I am trying to replace code that utilized recordset.Value
. I am having problems converting this line of code. How can I subtract DateTime.Now
from the value in the time_of_lock
(Datetime data type) column in SQL
?
else if (DateTime.Now - rs.Fields["time_of_lock"].Value < TimeSpan.FromMinutes(15))
I am assuming you can get two DateTime
values from your code. If so, try pop both into the following function:
private bool TimesApartNoMoreThan(DateTime first, DateTime second, int threshold)
{
return (second - first).TotalMinutes > threshold;
}
when you subtract two DateTimes, you get a TimeSpan . Having obtained that, you can represent it as whatever unit of duration you need ( in this case, minutes ):
From your statement, I am assuming rs.Fields["time_of_lock"] is of DateTime datatype. If that is the case, please try this:
DateTime.Now .Subtract(rs.Fields["time_of_lock"].Value).TotalMinutes < 15
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.