I have a Silverlight application that is importing Shape files (.shp) and parsing them as streams.  A shape file usually also include other companion files that have the same file name other than having a different extension (such as .dbf and .prj).  

Because I want to be able to import these file groups directly or from within ZIPs, I wrote some logic to first add all the imported files to a list, then explode any imported zip files' file contents into that same list.  When I pass a ZipInputStream to my parsing logic, I get errors and strange behavior that I don't get when I import the files directly.  Here's the error I usually get:

System.IO.EndOfStreamException: Attempted to read past the end of the stream.

What am I doing wrong?  Why can't I just parse the ZipInputStreams the same way I parse the FileStreams that come from the OpenFileDialog?

NOTE: Sample project is available here.  First try importing the sample data files directly (test.shp, test.dbf, test.prj) by multi-selecting them in the OpenFileDialog.  Then, try importing the ZIP file (test.zip) which contains the exact same three files and see the error.

Thanks,
J. Tower

Hi

I want to be able to upload a zip file to the server (using RadUpload) and then extract the files within it to the server once uploaded.

How do i do this?

Many Thanks
Tracey

Hello,

I am having a lot of success with this new addition to the Telerik WPF library, however i cannot see how I can add a directory to the archive?
Thanks,

Xavier.

How to set password on Saving & opening the zip file.

Good day,

      I have a code as follows to compress I just copied it from the documentation:

private string CompressString(string str)
        {
            MemoryStream memoryStream = new MemoryStream();
            ZipCompression method = ZipCompression.Default;
            ZipOutputStream zipOutputStream = new ZipOutputStream(memoryStream, method);
            StreamWriter writer = new StreamWriter(zipOutputStream);
            writer.Write(str);
            writer.Flush();
            return Convert.ToBase64String(memoryStream.ToArray());
        }


  What is missing is to decompress it, I tried the following code but it doesn't give me the correct output

private string UnCompressString(string str)
        {

            MemoryStream memoryStream = new MemoryStream(Convert.FromBase64String(str));
            ZipInputStream input = new ZipInputStream(memoryStream);
            StreamReader reader = new StreamReader(input.BaseStream);
            string strData = reader.ReadToEnd();
            return strData;

        }

  When I tried to call the uncompressstring method, it does not give me the original text.

Thanks

Is there a way to unzip from the ZipPackage? My current routine is incorrect.

Here are my two routines (zip and unzip):

        public static void ZipStream(Stream oInStream, string sFileName, Stream oZipStream)
        {
            ZipPackage oZipPackage = ZipPackage.Create(oZipStream);
            oZipPackage.AddStream(sFileName, oInStream);
        }
 
        public static Stream UnzipStream(Stream oZipStream, int iIndex = 0) //this is incorrect; returns zipped stream
        {
            ZipPackage oZipPackage = ZipPackage.Open(oZipStream, FileAccess.Read);
            return oZipPackage.ZipPackageEntries[iIndex].OpenInputStream();
        }

Hello.

Does ZipLibrary of RadControls support ZIP encryption specs like AES 128?
I cannot find related description in your site.

I'm downloading a ZIP file handler and do a verification with the ZipPackage and gives me a method not supported error

My code:

Thank you very much in advance

Hey guys, I got the following stored in a text (.txt) file, which is, of course, zipped:
Hello World!

However, if I read the file like:

ZipInputStream zis = new ZipInputStream(entry.OpenInputStream());                             
StreamReader streamReader = new StreamReader(zis);                             
String text = streamReader.ReadToEnd();

The string (text) is:
ello World!

Am I doing something wrong or is this a bug (a read() instead of a peek() somewhere)?

Thank you!