using serialization to serialize my objects to hard drive

[Alexandre (www.pointnetsolutions.com)]

Hey im using serialization to serialize my objects to hard drive,
reading them is no problem but overwriting them causes me problems,i
have un authorized access to the files but i gave the folder all the
permissions.

source:

http://www.vkarlsen.no/pastebin/default.asp?id=5545

can someone tell me what im not doing right

[Alexandre (www.pointnetsolutions.com)]

Re: using serialization to serialize my objects to hard drive

this only occurs when i write a new file and then try to over write it.
if the thread finishes and starts overagain i am able to overwrite a
file that already exists as often as i want..

[Willy Denoyette [MVP]]

Re: using serialization to serialize my objects to hard drive


"Alexandre (www.pointnetso lutions.com)" <alexandre.bris ebois@gmail.com >
wrote in message
news:1114278684 .509416.322520@ f14g2000cwb.goo glegroups.com.. .[color=blue]
> Hey im using serialization to serialize my objects to hard drive,
> reading them is no problem but overwriting them causes me problems,i
> have un authorized access to the files but i gave the folder all the
> permissions.
>
> source:
> http://www.vkarlsen.no/pastebin/default.asp?id=5545
>
> can someone tell me what im not doing right
>[/color]

Please post the exact exception message.
You should also post the complete code that illustrates the problem you
have, not a few methods like you did now.

Willy.

[Steve Walker]

Re: using serialization to serialize my objects to hard drive

In message <1114281928.811 575.307330@z14g 2000cwz.googleg roups.com>,
"Alexandre (www.pointnetso lutions.com)" <alexandre.bris ebois@gmail.com >
writes[color=blue]
>this only occurs when i write a new file and then try to over write it.
>if the thread finishes and starts overagain i am able to overwrite a
>file that already exists as often as i want..[/color]

Are you using a filestream to write to disk? Is it in a using block /
being cleaned up manually? The example below does not error. Remove the
'using' block, and you get a file locked exception:

"An unhandled exception of type 'System.IO.IOEx ception' occurred in
mscorlib.dll

Additional information: The process cannot access the file "I:\x.dat"
because it is being used by another process."

static void Main(string[] args)
{
WriteFile();
WriteFile();
Console.Read();
}
static void WriteFile()
{
Foo foo = new Foo();
BinaryFormatter bf = new BinaryFormatter ();
using(FileStrea m fs = new FileStream(@"I: \x.dat",FileMod e.Create))
{
bf.Serialize(fs ,foo);
}
}

--
Steve Walker

[Alexandre (www.pointnetsolutions.com)]

Re: using serialization to serialize my objects to hard drive

Additional information: The process cannot access the file "I:\x.dat"
because it is being used by another process."

is the exact error im getting this is all on a webservice, and i am
using the user statment "block" and i still get this error when i
create a new fresh file where i overwrite the file im alright.

it seems that when i create a new filei have to wait for the gc to
dispose of the application thread to release everything before i can
overwrite....

i find this quite strange because the code is clean and should work i
juste cannot find anything wrong with it.

if any one can give me some light on this i would be greatful...

Alexandre

[Steve Walker]

Re: using serialization to serialize my objects to hard drive

In message <1114490980.152 261.125050@l41g 2000cwc.googleg roups.com>,
"Alexandre (www.pointnetso lutions.com)" <alexandre.bris ebois@gmail.com >
writes[color=blue]
>Additional information: The process cannot access the file "I:\x.dat"
>because it is being used by another process."
>
>is the exact error im getting this is all on a webservice, and i am
>using the user statment "block" and i still get this error when i
>create a new fresh file where i overwrite the file im alright.
>
>it seems that when i create a new filei have to wait for the gc to
>dispose of the application thread to release everything before i can
>overwrite... .[/color]

I think you need to post the code.

--
Steve Walker

[Alexandre (www.pointnetsolutions.com)]

Re: using serialization to serialize my objects to hard drive

i will post again :

http://www.vkarlsen.no/pastebin/ViewPaste.aspx?id=5563

[Steve Walker]

Re: using serialization to serialize my objects to hard drive

In message <1114526752.321 907.299920@z14g 2000cwz.googleg roups.com>,
"Alexandre (www.pointnetso lutions.com)" <alexandre.bris ebois@gmail.com >
writes[color=blue]
>i will post again :
>http://www.vkarlsen.no/pastebin/ViewPaste.aspx?id=5563[/color]

That code works on my machine. Do you have another process locking it;
virus scanner, or index server, perhaps? You can use Process Explorer
http://www.sysinternals.com to find out which process has a file locked.

--
Steve Walker

[Alexandre (www.pointnetsolutions.com)]

Re: using serialization to serialize my objects to hard drive

i am using this code in a web service, therefore i truely have no idea
why it causes this problem like you have experienced this code works
great locally

[Aaron]

Re: using serialization to serialize my objects to hard drive

If you are trying to write to a file from a webservice you may have threading
issues as multiple requests would be trying to write to the same file.

"Alexandre (www.pointnetso lutions.com)" wrote:
[color=blue]
> i am using this code in a web service, therefore i truely have no idea
> why it causes this problem like you have experienced this code works
> great locally
>
>[/color]