I wrote the following code to write the current datetime into a txt file per
minute in .Net CF2.0 version:

SystemState s = new SystemState(SystemProperty.Time);
s.Changed += new ChangeEventHandler(s_Changed);

void s_Changed(object sender, ChangeEventArgs args)
{
FileStream fsMyfile = new FileStream("\Program Files\Sender\1.txt",
FileMode.Append, FileAccess.Write);
StreamWriter swMyfile = new StreamWriter(fsMyfile);
swMyfile.WriteLine("CurrentDateTime:" + DateTime.Now.ToString());
swMyfile.Flush();
swMyfile.Close();
}

I wrote this code according to the sample in WM6 SDK.
But, after few hours, I checked the txt file, it didn't write the system
time per minute.
The Actual Results as follow:
CurrentDateTime:07-6-30 17:37:02
CurrentDateTime:07-6-30 17:38:02
CurrentDateTime:07-6-30 17:39:02
CurrentDateTime:07-6-30 19:03:38
CurrentDateTime:07-6-30 19:04:03
CurrentDateTime:07-6-30 19:05:03
CurrentDateTime:07-6-30 19:10:51
CurrentDateTime:07-6-30 19:11:02
CurrentDateTime:07-6-30 19:12:02
CurrentDateTime:07-6-30 19:13:02

During 07-6-30 17:39:02 to 07-6-30 19:03:38, I didn't use my mobile. So, I
think, maybe it's the problem.

Then I tried the System.Threading.Timer also. It's same problem as above.
When the screen turn off, then the system will not raise the timer tick event
again.

I don't know it's the .Net CF2.0's bug or not.

So, I submit it here.

Could you help me on it?

Thanks a lot!

=============================
btw, What I want to do is to monitor a directory, If got any file, then
process it and cut it to other folder.

It looks like a Service. Right?
I found a lot of documents that talk about how to create Service in VC++,
but, I don't know anything about VC++, I just know C#.

Could you teach me to create a service by C#?

Questions about programming are far more likely to get useful answers
if asked in a newsgroup for programmers. I just used google
(http://groups.google.com/advanced_group_search) to look up
systemstate cf
and got 349 hits. I took a quick look and didn't see anything directly
relevant. But I sure saw leads to a more likely newsgroup.

On Wed, 4 Jul 2007 07:16:17 -0700, Luckcao
<Luckcao@discussions.microsoft.com> wrote:

>I wrote the following code to write the current datetime into a txt file per
>minute in .Net CF2.0 version:
>
>SystemState s = new SystemState(SystemProperty.Time);
>s.Changed += new ChangeEventHandler(s_Changed);
>
>void s_Changed(object sender, ChangeEventArgs args)
>{
> FileStream fsMyfile = new FileStream("\Program Files\Sender\1.txt",
>FileMode.Append, FileAccess.Write);
> StreamWriter swMyfile = new StreamWriter(fsMyfile);
> swMyfile.WriteLine("CurrentDateTime:" + DateTime.Now.ToString());
> swMyfile.Flush();
> swMyfile.Close();
>}
>
>I wrote this code according to the sample in WM6 SDK.
>But, after few hours, I checked the txt file, it didn't write the system
>time per minute.
>The Actual Results as follow:
>CurrentDateTime:07-6-30 17:37:02
>CurrentDateTime:07-6-30 17:38:02
>CurrentDateTime:07-6-30 17:39:02
>CurrentDateTime:07-6-30 19:03:38
>CurrentDateTime:07-6-30 19:04:03
>CurrentDateTime:07-6-30 19:05:03
>CurrentDateTime:07-6-30 19:10:51
>CurrentDateTime:07-6-30 19:11:02
>CurrentDateTime:07-6-30 19:12:02
>CurrentDateTime:07-6-30 19:13:02
>
>During 07-6-30 17:39:02 to 07-6-30 19:03:38, I didn't use my mobile. So, I
>think, maybe it's the problem.
>
>Then I tried the System.Threading.Timer also. It's same problem as above.
>When the screen turn off, then the system will not raise the timer tick event
>again.
>
>I don't know it's the .Net CF2.0's bug or not.
>
>So, I submit it here.
>
>Could you help me on it?
>
>Thanks a lot!
>
>=============================
>btw, What I want to do is to monitor a directory, If got any file, then
>process it and cut it to other folder.
>
>It looks like a Service. Right?
>I found a lot of documents that talk about how to create Service in VC++,
>but, I don't know anything about VC++, I just know C#.
>
>Could you teach me to create a service by C#?

-----------------------------------------
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Robert E. Zaret, eMVP
PenFact, Inc.
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