Get last write time bug!

  • Thread starter Thread starter Vladimir
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Vladimir

I have the file "439.Jpg" with last write time 25.10.98 03:06:06.
But FIleInfo LastWriteTime instance member returns 25.10.98 02:06:06!

And File GetLastWriteTime static member returns the same.

And may be with directories and creation (and etc) times is the same...

..Net framework v1.1, Windows xp {Service pack 2}.
 
Vladimir said:
I have the file "439.Jpg" with last write time 25.10.98 03:06:06.
But FIleInfo LastWriteTime instance member returns 25.10.98 02:06:06!

And File GetLastWriteTime static member returns the same.

And may be with directories and creation (and etc) times is the same...

.Net framework v1.1, Windows xp {Service pack 2}.
Click to expand...

Well, how are you seeing both of those times? Is one perhaps displayed
in local time and one in UTC?
 
I have the file "439.Jpg" with last write time 25.10.98 03:06:06.
Well, how are you seeing both of those times? Is one perhaps displayed
in local time and one in UTC?
Click to expand...

/*
DateTime time;

// Last write time for this file is 25.10.98 03:06:06
// because of windows saying this.
time = File.GetLastWriteTime("E:\\Operable\\Rules.Ion");

File.SetLastWriteTime("E:\\Operable\\Rules.Ion", time);
// But now last write time for this file is 25.10.98 02:06:06.
*/

Can it be normal?

If yes, then why...

/*
DateTime time;

// Last write time for this file is 25.10.98 02:06:06
time = File.GetLastWriteTime("E:\\Operable\\Rules.Ion");

File.SetLastWriteTime("E:\\Operable\\Rules.Ion", time);
// Why now last write time for this file is not equals 25.10.98 01:06:06???
*/
 
Vladimir said:
/*
DateTime time;

// Last write time for this file is 25.10.98 03:06:06
// because of windows saying this.
time = File.GetLastWriteTime("E:\\Operable\\Rules.Ion");

File.SetLastWriteTime("E:\\Operable\\Rules.Ion", time);
// But now last write time for this file is 25.10.98 02:06:06.
*/
Click to expand...

If calling SetLastWriteTime with the value returned by GetLastWriteTime
changes the value, that defeinitely seems odd.

Have you tried using the UTC versions? (File.SetLastWriteTimeUtc etc)
 
/*
If calling SetLastWriteTime with the value returned by GetLastWriteTime
changes the value, that defeinitely seems odd.
Click to expand...

Yes, and it depends entirely on time value.

22.10.98 03:06:06 transformed to 22.10.98 02:06:06 (bug)
but for example
23.10.98 03:06:06 is not transformed to 23.10.98 02:06:06 (not bug)

How about this in .Net Framework 2.0?
I don't have it beta version.
Have you tried using the UTC versions? (File.SetLastWriteTimeUtc etc)
Click to expand...

In case of said above times that's all right with utc versions.
 
Vladimir said:
Yes, and it depends entirely on time value.

22.10.98 03:06:06 transformed to 22.10.98 02:06:06 (bug)
but for example
23.10.98 03:06:06 is not transformed to 23.10.98 02:06:06 (not bug)
Click to expand...

Out of interest, is that the date that daylight saving time changes in
your locale?
How about this in .Net Framework 2.0?
I don't have it beta version.
Click to expand...

Me either, I'm afraid.
In case of said above times that's all right with utc versions.
Click to expand...

Right - I'd suggest using the UTC versions then. In fact, I think
that's a better bet usually anyway :)
 
Out of interest, is that the date that daylight saving time changes in
your locale?
Click to expand...

Hem, i'am not sure exactly what about you speaking...
But my time zone is "Gmt +02:00".
 
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