Making a folder compressed

[Pavel]

Hello.

I am trying to make a folder compressed and failing miserably. Below
are three ways that I tried to make it compressed, all of them compile
and run w/o any problems, but the folder is still not-compressed.
(using NTFS, win2k)

// some folder
string path = @"C:\TEMP\";

// try #1
File.SetAttribu tes(path, FileAttributes. Compressed);

// try #2
File.SetAttribu tes(path, File.GetAttribu tes(path) |
FileAttributes. Compressed);

// try #3
DirectoryInfo di = new DirectoryInfo(p ath);
di.Attributes = di.Attributes | FileAttributes. Compressed;

What am I doing wrong?
(I did not work before with the FlagsAttribute enums, so I could be
doing something completely wrong, but I tried to find how to do it, and
those seem to be the proper ways)

Thanks,

Pavel

[Willy Denoyette [MVP]]

"Pavel" <ea**********@g mail.com> wrote in message
news:11******** *************@z 14g2000cwz.goog legroups.com...

Hello.

I am trying to make a folder compressed and failing miserably. Below
are three ways that I tried to make it compressed, all of them compile
and run w/o any problems, but the folder is still not-compressed.
(using NTFS, win2k)

// some folder
string path = @"C:\TEMP\";

// try #1
File.SetAttribu tes(path, FileAttributes. Compressed);

// try #2
File.SetAttribu tes(path, File.GetAttribu tes(path) |
FileAttributes. Compressed);

// try #3
DirectoryInfo di = new DirectoryInfo(p ath);
di.Attributes = di.Attributes | FileAttributes. Compressed;

What am I doing wrong?

Nothing, you can't set this attribute using Directory.Attri butes you can
only get the attribute.
The documentation should indicate which attributes can be set and which
cannot but fails to do so.
Here are those that can't be set.
Directory, Encrypted, Compressed, ReparsePoint, SparseFile, OffLine and
Temporary.
All others can be set.

You can use the System.Manageme nt and the WMI class win32_directory to
compress a folder.

string dirName = "c:\\\\someFold er";
string objPath = "Win32_Director y.Name=" + "\"" + dirName + "\"";
using (ManagementObje ct dir= new ManagementObjec t(objPath))
{
ManagementBaseO bject outParams = dir.InvokeMetho d("Compress", null,
null);
uint ret = (uint)(outParam s.Properties["ReturnValu e"].Value);
if(ret == 0)
Console.WriteLi ne("Success");
else Console.WriteLi ne("Failed with error code: {0}", ret);
}

Willy.

[Dan Bass]

I believe you cannot set a file attribute to be compressed, it's a property
that is readonly. For example, a text file would not be compressed, where as
a Zip file would be.

If you want to compress code, then you have to manually zip it up, then
remove the folder.

See this: http://www.icsharpcode.net/OpenSourc...b/Default.aspx

Good luck.
Dan.

"Pavel" <ea**********@g mail.com> wrote in message
news:11******** *************@z 14g2000cwz.goog legroups.com...

Hello.

I am trying to make a folder compressed and failing miserably. Below
are three ways that I tried to make it compressed, all of them compile
and run w/o any problems, but the folder is still not-compressed.
(using NTFS, win2k)

// some folder
string path = @"C:\TEMP\";

// try #1
File.SetAttribu tes(path, FileAttributes. Compressed);

// try #2
File.SetAttribu tes(path, File.GetAttribu tes(path) |
FileAttributes. Compressed);

// try #3
DirectoryInfo di = new DirectoryInfo(p ath);
di.Attributes = di.Attributes | FileAttributes. Compressed;

What am I doing wrong?
(I did not work before with the FlagsAttribute enums, so I could be
doing something completely wrong, but I tried to find how to do it, and
those seem to be the proper ways)

Thanks,

Pavel

[Pavel]

Thanx for your reply Willy. The code worked for me, I am currently
running a test to see whether there is a benefit (for my program) to
compress the folder.

pavel

[Willy Denoyette [MVP]]

Well, you can always un-compress :-) using the uncompress command:

ManagementBaseO bject outParams = dir.InvokeMetho d("Uncompress ", null,
null);

Willy.

"Pavel" <ea**********@g mail.com> wrote in message
news:11******** **************@ o13g2000cwo.goo glegroups.com.. .

Thanx for your reply Willy. The code worked for me, I am currently
running a test to see whether there is a benefit (for my program) to
compress the folder.

pavel