Adding files entries to zipfiles in ax 2012

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Posted on by Vaishnavi

HI All,

I am trying to use System.IO.Compression class and I want to add pdf files to the existing zip file without using Ionic.Zip.ZipFile dll.

System.IO.Compression.ZipFileExtensions::CreateEntryFromFile() method needs ZipArchive as a parameter but does AX 2012 support Zip Archive?

I know D365 / dotnet 4.5 has support for System.IO.Compression.ZipArchive but AX 2012 does not. I want to know how can I

use System.IO.Compression.ZipFileExtensions::CreateEntryFromFile() in AX 2012?

Thanks,

Vaishnavi

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Vaishnavi 47 on at

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RE: Adding files entries to zipfiles in ax 2012

Hi Martin,

Thank you very much.

When I added the try catch as you suggested, I did not get any error, Instead I got the proper zipfile that works( I can open the zip file now).

that helped.

Thanks,

vaishnavi G.

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Martin Dráb 235,876 Most Valuable Professional on at

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RE: Adding files entries to zipfiles in ax 2012

Maybe your code failed and you didn't notice it. Try this:

str zipPath = @"C:\Users\vgubba\start.zip"; str newFile = @"c:\users\vgubba\TEST.pdf"; try { archive = System.IO.Compression.ZipFile::Open(zipPath, System.IO.Compression.ZipArchiveMode::Create); System.IO.Compression.ZipFileExtensions::CreateEntryFromFile(archive, newFile, "TEST1.pdf"); archive.Dispose(); } catch (Exception::CLRError) { throw error(AifUtil::getClrErrorMessage()); }

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Vaishnavi 47 on at

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RE: Adding files entries to zipfiles in ax 2012

Hi Nikolaos Mäenpää,

I did try using different zip extractors. I think the file that is being created using that function has issues. When I use file stream classes and add files to zip, it works fine.

Or maybe I am not using the function properly.

Here is example of what I used:

str zipPath = @"C:\Users\vgubba\start.zip";

str newFile = @"c:\users\vgubba\TEST.pdf";

archive=System.IO.Compression.ZipFile::Open(zipPath, System.IO.Compression.ZipArchiveMode::Create);

System.IO.Compression.ZipFileExtensions::CreateEntryFromFile(archive,newFile, "TEST1.pdf");

archive.Dispose();

However the below code works:

zipArchive = System.IO.Compression.ZipFile::Open(zipPath, System.IO. Compression.ZipArchiveMode::Create);

fileEntry = zipArchive.CreateEntry("TEST1.pdf");

fileEntryStream = fileEntry.Open();

fileStream = System.IO.File::Open(newFile,System.IO.FileMode::Open);

fileStream.CopyTo(fileEntryStream);

fileStream.Close();

fileEntryStream.Close();

zipArchive.Dispose();

Thanks,

Vaishnavi.

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nmaenpaa 101,160 Moderator on at

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RE: Adding files entries to zipfiles in ax 2012

Perhaps the problem is not in the zip file but your Windows?

Could you try to install some standalone zip management program such as 7zip and see if you can then unzip the package?

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Vaishnavi 47 on at

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RE: Adding files entries to zipfiles in ax 2012

Thank you Martin, Andre,

I was able to add System.IO.Compression v 4.5 libraries, I am able to use the extended features now.

How ever, When I create a zip file using System.IO.Compression.ZipFileExtensions::CreateEntryFromFile(), the zip file gets created but when I try to use it/extract or view in the windows folder, I get an error message that zip file is empty, cannot be extracted. whereas the zip file, in reality, shows the memory size in properties which means it is not empty.

I had to use the memory stream and file stream classes to copy the file, which now works.

Thanks,

Vaishnavi G.

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Martin Dráb 235,876 Most Valuable Professional on at

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RE: Adding files entries to zipfiles in ax 2012

What if you try to add such a reference to System.IO.Compression libraries?

What's the exact version of your AX? Different updates support different versions of .NET framework.

If it can't be done directly in AX, you can develop a separate .NET 4.5+ application and let it communicate with AX 2012.

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André Arnaud de Cal... 297,316 Super User 2025 Season 2 on at

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RE: Adding files entries to zipfiles in ax 2012

Hi Vaishnavi,

The platform for Dynamics 365 is different and has other options. You can check which dll is used in Dynamics 365 and see if you can add this one as resource to be used in AX2012.

Why do you not want to use Ionic.Zip.Zipfile? Is it missing some features?

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