I'd like to compare two datetime values in milliseconds. The
datetime.compare method appears to show only seconds. Milliseconds of a
datetime are available as a property of each datetime, but I am assuming
there is an easier way than comparing the milliseconds, seconds, minutes,
hours, days, etc, individually to generate the difference.

Thanks in advance.

Mark

Mark wrote:
> I'd like to compare two datetime values in milliseconds. The
> datetime.compare method appears to show only seconds. Milliseconds of a
> datetime are available as a property of each datetime, but I am assuming
> there is an easier way than comparing the milliseconds, seconds, minutes,
> hours, days, etc, individually to generate the difference.

DateTime Compare returns negative, zero, positive.

If you simply subtract the two DateTime then you get a
TimeSpan where you can use the TotalMilliSeconds property.

Arne

Mark wrote:
> I'd like to compare two datetime values in milliseconds. The
> datetime.compare method appears to show only seconds. Milliseconds
> of a datetime are available as a property of each datetime, but I am
> assuming there is an easier way than comparing the milliseconds,
> seconds, minutes, hours, days, etc, individually to generate the
> difference.

Someone (possibly yourself) has led you astray about DateTime.Compare.

The DateTime struct is nothing but a fancy wrapper around the DateTime.Ticks
property - all other units are synthesized via simple algebraic
relationships (60 seconds in a minute, and so on).

DateTime.Compare compares the Ticks value, so there is no higher precision
comparison possible between DateTime objects than that provided by
DateTime.Compare.

-cd

Hi Mark,

Just in case you wonder what is Tick: a tick is the smallest unit of time
that can be specified. One millisecond = 10000 ticks. You can use the
TimeSpan.TotalMilliseconds to get the difference between two DateTime just
as Arne described.


Regards,
Walter Wang ((E-Mail Removed), remove 'online.')
Microsoft Online Community Support

==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================

This posting is provided "AS IS" with no warranties, and confers no rights.