File Locking Question

**W.G. Ryan eMVP** · Nov 17 '05, 08:24 AM

Re: File Locking Question

AFAIK, there's no easy way around this - pulling the cable while syncing
sucks - BAD. Let me look around for you but typically it's going to be a
mess if it happens.

W.G. Ryan MVP
Windows Embedded
"Robert W." <RobertW@discus sions.microsoft .com> wrote in message
news:1624FC2C-9381-4388-9FC6-0DF778927E31@mi crosoft.com...[color=blue]
> I'm writing a WinForms app that copies files to Pocket PC using the RAPI
> 'CopyFileToDevi ce' method. If there are no interruptions then everything
> works perfectly.
>
> But in testing, I've deliberately disconnected the Pocket PC to see what
> happens.
>
> Upon reconnection I get an error that the source file is being used by
> another process - in other words, the file is locked.
>
> Since I know the previous process has concluded, is there a way for me to
> forcibly unlock the file?
>
> --
> Robert W.
> Vancouver, BC
> www.mwtech.com
>[/color]

**Robert W.** · Nov 17 '05, 08:24 AM

Re: File Locking Question

Here's one approach I'm considering. What do you think:

When I startup the WinForms app I can ensure that there's a temporary
subfolder, like: C:\Temp\AppName I will try to erase all files in it.

When it's time to copy a file to a mobile device I can first use File.Copy
to copy the source file (which seems to work regardless if there's a lock)
into this folder. And if the file already exists, perhaps from a previous
lock, then I'd just add a numeric digit to it until I found a free filename -
like "Filename1.ext" , "Filename2.ext" , etc.

And then this copy, which I'll know is not locked, I can copy to the mobile
device.

Comments appreciated.

--
Robert W.
Vancouver, BC

https://www.mwtech.com

"W.G. Ryan eMVP" wrote:
[color=blue]
> AFAIK, there's no easy way around this - pulling the cable while syncing
> sucks - BAD. Let me look around for you but typically it's going to be a
> mess if it happens.
>
> W.G. Ryan MVP
> Windows Embedded
> "Robert W." <RobertW@discus sions.microsoft .com> wrote in message
> news:1624FC2C-9381-4388-9FC6-0DF778927E31@mi crosoft.com...[color=green]
> > I'm writing a WinForms app that copies files to Pocket PC using the RAPI
> > 'CopyFileToDevi ce' method. If there are no interruptions then everything
> > works perfectly.
> >
> > But in testing, I've deliberately disconnected the Pocket PC to see what
> > happens.
> >
> > Upon reconnection I get an error that the source file is being used by
> > another process - in other words, the file is locked.
> >
> > Since I know the previous process has concluded, is there a way for me to
> > forcibly unlock the file?
> >
> > --
> > Robert W.
> > Vancouver, BC
> > www.mwtech.com
> >[/color]
>
>
>[/color]