Application value null

[Sala]

Hi experts!
If system time 12:00 am my application variable value will be
null.. I am trying to get null value of application but that time i'll
make some actions to that page.. So pls tell me how i'll make null

[Chris]

I'd like to help, but I'm having difficulty understanding what you are
trying to say. Can you post a snippet of your code that shows the problem
you are having?

Thanks,
-Chris

"Sala" <sa**********@gmail.comwrote in message
news:11**********************@45g2000cws.googlegro ups.com...

Hi experts!
If system time 12:00 am my application variable value will be
null.. I am trying to get null value of application but that time i'll
make some actions to that page.. So pls tell me how i'll make null

[David Boucherie & Co]

If system time 12:00 am my application variable value will be

null.. I am trying to get null value of application but that time i'll
make some actions to that page.. So pls tell me how i'll make null

I'm not sure I understand your question, but if you're asking how to set
a DateTime to null, the answer is, you can't, it's a value type.

However, you can use a nullable version of DateTime (if you are using
the latest C# version).

Something like this:

//-----------------------------------------
private DateTime? MyTime()
{
DateTime? now = DateTime.Now;
if ( now.Value.TimeOfDay == new TimeSpan( 0, 0, 0 ) )
now = null;
return now;
}
//-----------------------------------------

By the way, DateTime? is just a syntactic shortcut for:
Nullable<DateTime>

I hope I answered the right question. :)

David

[Bob Jones]

Another possibility is to use DateTime.MaxValue or DateTime.MinValue.
These are guaranteed to be greather than, or less than, respectively
than any actual datetime value. You could use these as a kind of pseudo
null value. AND it's of type DateTime, of course.
On 2006-11-25 05:50:29 -0600, David Boucherie & Co
<da*************@telenet.besaid:

> If system time 12:00 am my application variable value will be
null.. I am trying to get null value of application but that time i'll
make some actions to that page.. So pls tell me how i'll make null

I'm not sure I understand your question, but if you're asking how to
set a DateTime to null, the answer is, you can't, it's a value type.

However, you can use a nullable version of DateTime (if you are using
the latest C# version).

Something like this:

//-----------------------------------------
private DateTime? MyTime()
{
DateTime? now = DateTime.Now;
if ( now.Value.TimeOfDay == new TimeSpan( 0, 0, 0 ) )
now = null;
return now;
}
//-----------------------------------------

By the way, DateTime? is just a syntactic shortcut for:
Nullable<DateTime>

I hope I answered the right question. :)

David

[Jon Skeet [C# MVP]]

Bob Jones <ro****@joneshouse.comwrote:

Another possibility is to use DateTime.MaxValue or DateTime.MinValue.
These are guaranteed to be greather than, or less than, respectively
than any actual datetime value. You could use these as a kind of pseudo
null value. AND it's of type DateTime, of course.

Well, they're guaranteed to be greater than or less than any *other*
actual DateTime value - but they're valid DateTime values in
themselves.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[Bob Jones]

Quit picking nits. You know what I mean. Show me "MinValue" on a clock.

On 2006-11-25 12:33:10 -0600, Jon Skeet [C# MVP] <sk***@pobox.comsaid:

Bob Jones <ro****@joneshouse.comwrote:

>Another possibility is to use DateTime.MaxValue or DateTime.MinValue.
These are guaranteed to be greather than, or less than, respectively
than any actual datetime value. You could use these as a kind of pseudo
null value. AND it's of type DateTime, of course.

Well, they're guaranteed to be greater than or less than any *other*
actual DateTime value - but they're valid DateTime values in themselves.

[Jon Skeet [C# MVP]]

Bob Jones <ro****@joneshouse.comwrote:

Quit picking nits. You know what I mean. Show me "MinValue" on a clock.

I could show you January 1st 1AD on a calendar just as easily as I
could show you January 2nd 1AD.

Just beceause you won't see it called MinValue doesn't mean that
they're not "actual" DateTime values.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[Bob Jones]

On 2006-11-26 01:59:16 -0600, Jon Skeet [C# MVP] <sk***@pobox.comsaid:

Bob Jones <ro****@joneshouse.comwrote:

>Quit picking nits. You know what I mean. Show me "MinValue" on a clock.

I could show you January 1st 1AD on a calendar just as easily as I
could show you January 2nd 1AD.

Just beceause you won't see it called MinValue doesn't mean that
they're not "actual" DateTime values.

Ok, ok. We're violently agreeing here. I quote my previous post:
" AND it's of type DateTime, of course."