Hey together,

I've got a little problem with the ZipPackage in the Telerik.Windows.Zip library.

I'm developing in a Silverlight environment (Silverlight Business Application). On the server side I zip a user specified amount of files (which are stored in a Microsoft SQL database).

At first a little code snippet:


As you can see, I store the ZipPackage in a MemoryStream. After the "using" code block I return the content of the MemoryStream (ms) back to the client side of my application (the above procedure is called due to an InvokeOperation). On the client side, the returned byte array will be stored under a user specified filename in the local file system. This works really proper, but after opening the stored zip file, I see, that filenames (containing german umlauts like ä, ö, ü) are not well encoded.

For example:
A filename in the database is called "Aufsätze.docx". After storing this file with this filename in the zippackage and save the file on my hard disk, the filename is called "Aufs+ñtze.docx".

I've tried a lot with encoding ... default, utf8, etc. but nothing works.

Do you have an idea, what else I can do or try? If you need more information or code snippets, please let me know it.

Kind regards,
Chris

Hi,

i got a question using the ZipLibrary.

We got a .zip file with about 20 files zipped.

Some of the filenames contains german umlauts like ä,ö,ü ....

Now, when using the ziplibrary the filenames which got german umlauts are incorrect.

Here is the function to get the files.



Any hint's ?

thank you

Hi,

we have requirement to generate zip file from list of images and allow it to download in Silverlight.
All images are stored on remote machine(\\192.168.1.7\\abc\\\abc\year\month\1234\1234.jpg).
so I have implemented functionality to get the list of images and passed it to wcf service as an argument
and it returns list of byte array.
I have implemented the below code to create the zip file from list of stream.

In above code I have used to deflate compression to compress stream but it always returns the size and compression not works.
Is there any more configuration required for compression to work?

Thanks
Rahul

Does anyone know if the ZipPackage can accept a folder or set of folders and build a valid zip file from them? I haven't seen any examples or documentation on this.

I am trying to zip files to a memory stream but the stream content is always 0 even if the stream length seem correct.

MemoryStream ms = new MemoryStream();

            Telerik.Windows.Zip.ZipPackage z = null;

                    z = Telerik.Windows.Zip.ZipPackage.Create(ms);
                    z.Add(fi.FullName);

            Data = null;

            System.IO.BinaryReader reader = new System.IO.BinaryReader(ms);
            Data = new byte[(int)ms.Length];
            reader.Read(Data, 0, (int)ms.Length);            
            ms.Close();

--> Data contains only "0".

Can you pls advise ?

Thanks

Patrick

Hello telerik!

Is GZip supported now?
Thanks,
Tim.

Hello
is it possible to send a file to the end user without a repsonse.end, that way it would be possible to show a loading panel while the zip is building

Hi i need to zip files of 10 gb. How can i do it? (i got an exception)

Marcos

Hi, could you help me use the ZipPackage to decompress RAR File, can this be realized?  Thanks!

Hello


I'm trying to create a ZIP file from Silverlight with a list of JSON data and compresses well. 
The problem is to receive it in the server because I have no library Telerik receive the Zip to 
extract and process the result. The library I am using is IonicZip to receive the result but 
I get error trying to read the MemoryStream. Is there a library for ASP.net Telerik decompress 
the ZIP file

Code in Silverlight:
MemoryStream memoryStream = new MemoryStream();
ZipCompression method = ZipCompression.Default;
Telerik.Windows.Zip.ZipOutputStream zipOutputStream = new Telerik.Windows.Zip.ZipOutputStream(memoryStream, method);
StreamWriter writer = new StreamWriter(zipOutputStream);
writer.Write(listSave.ToJSON());
writer.Flush();
ServicesClient context = new ServicesClient();
context.SetZipFileAsync( Convert.ToBase64String(memoryStream.ToArray()));

Code in WCF:
public void SetZipFile(string _parameter)
     {
         if (!string.IsNullOrWhiteSpace(_parameter))
         {
             var info = Convert.FromBase64String(_parameter);
             MemoryStream stream = new MemoryStream(info);
             string dataList = string.Empty;
             MemoryStream output = new MemoryStream();
             StreamReader read = new StreamReader(output);
             using (ZipFile zip = ZipFile.Read(stream))
             {
                 ZipEntry item = zip[0];
                 item.Extract(output);
                 output.Seek(0, SeekOrigin.Begin);
                 dataList = read.ReadToEnd();
             }
         }
     }