Re: UnauthorizedAccessException

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

Try changing...

if (File.Exists(sLocation + name))
File.Delete(sLocation + name);
....to...
if (File.Exists(name))
File.Delete(name);

-Drew

<pterodactyl76@xxxxxxxxx> wrote in message news:eccb90ad-b696-4caa-b833-4e03fac70401@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi guys.
I run sample code on Pocket PC 2003 emulator, that use cf 2.0
the code opens "big" file and write parts of this file to another
files.
program can write 1, 10, 20, 70..any files and then shows error
message while creating next file:
System.UnauthorizedAccessException: UnauthorizedAccessException
в System.IO:__Error:WinIOError()
в System.IO:FileStream:.ctor()
в System.IO:FileStream:.ctor()
в PagesDB:MainForm:MakeInstall()

here is the code:
private void MakeInstall()
{

System.IO.FileStream fs = null;

BinaryReader br = null;

try
{
String sLocation = "\\Storage card\\Data\\";

fs = new FileStream(sLocation + "Data.x",
FileMode.Open, FileAccess.Read);
br = new BinaryReader(fs);

int l = System.BitConverter.ToInt32(br.ReadBytes(8),
0);

MemoryStream ms = new MemoryStream();
ZOutputStream outZStream = new ZOutputStream(ms);
outZStream.Write(br.ReadBytes(l), 0, l);
outZStream.Flush();
outZStream.Close();


ms.Seek(0, SeekOrigin.Begin);
ArrayList al = new ArrayList();
String str=String.Empty;

using (StreamReader sr = new StreamReader(ms,
System.Text.Encoding.GetEncoding(1251)))
{
while ((str = sr.ReadLine()) != null)
{
al.Add(str);
}
}

ms.Close();

if (!Directory.Exists(sLocation + "IDX\\"))
{
Directory.CreateDirectory(sLocation + "IDX\\");
}

String name = String.Empty;
System.IO.FileStream fs1 =null;

for (int i = 0; i < al.Count; i++)
{
name = sLocation+((String)al[i]).Split('|')[0];
l =
System.Convert.ToInt32(((String)al[i]).Split('|')[1]);

if (File.Exists(sLocation + name))
File.Delete(sLocation + name);

//fs1 = File.OpenWrite(name);//here is error
//fs1 = new FileStream(name, FileMode.CreateNew);//
same error
fs1 = new FileStream(name, FileMode.Create);//
error too
fs1.Write(br.ReadBytes(l), 0, l);
fs1.Flush();
fs1.Close();

}
}
catch (Exception err)
{
throw new Exception("Error in module MakeInstall " +
err.Message);
}
finally
{
if(br!=null)
br.Close();
}

}

i use local administrator account, the full rights on emulator's
storage card folder grants to everyone, system and users. i check file
and folder properties - sometimes they became readonly, but in program
is no code that makes it, just code that run MakeInstall procedure.
the folders are empty. if they not empty program write some files, and
throws error, next run it write more files and throws error, every
next run it throws eroro and write more files.

Can somebody explain, why this happens?

WBR
Kirill

.

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