Hi,

I am searching for a way to export out a word document from my c# wpf application. I have a documentviewer that has a generated document. Does the words processing control allow this?

many thanks,

Rob

Hi,
I am working with some log files I generate with another application.  My intention is to archive them and then delete the large log file and have it stored in a compressed format for later access.    This works when I use ZipArchiveMode.Create.   Where this falls apart is that if I delete the file after I have added it to the archive, and then run the program again, it is not keeping the old entries in the archive - since I am using "Create".  I also wanted to save time that if the file I wanted to add was already in the archive, it would skip adding it.  A query against the Entries property of the ZipArchive does not seem to work when the mode is set to Create - it might work for the first time I ask, but once I add a file I get an error.  I then attempted to use ZipArchiveMode.Update, but then I received and ObjectDisposedException {"Cannot access a closed Stream."}.

I am using the code found in this post
http://www.telerik.com/forums/zip-content-of-a-folder-into-an-encrypted-zip-file
to add the existing files to the archive.

So I'm not sure if I am using the ZipArchive incorrectly, or I need to do it a different way, but help and guidance would be appreciated.  I can create a demo app if needed.

Thanks,
Chris

I'm trying to compress and decompress file with ZipLibrary. But it doesn't works. Can anybody help me?

 Private Function Compress(data As Byte()) As Byte()
        Dim result As Byte() = Nothing
        Try
            Using memoryStream As New MemoryStream()
                Dim method As ZipCompression = ZipCompression.Deflate64
                Using zipOutputStream As New ZipOutputStream(memoryStream, method)
                    Using writer As New StreamWriter(zipOutputStream)
                        writer.Write(data)
                        writer.Flush()
                        result = memoryStream.ToArray()
                    End Using
                End Using
            End Using
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
        Return result
    End Function

  Private Function UnCompress(data As Byte()) As Byte()
        Dim result As Byte() = Nothing
        Try
            Using memoryStream As New MemoryStream(data)
                Using zipInputStream As New ZipInputStream(memoryStream)
                    Using reader As New StreamReader(zipInputStream)
                        result = memoryStream.ToArray
                    End Using
                End Using
            End Using
        Catch ex As Exception

        End Try
        Return result
    End Function

Hello,

I used RadAsyncUpload control to accept a upload zip file. My zip file contains text delimiter files.  I am able to unzip it to a temporary directory, but if I try again with the same zip file I get error something like "...because it is being used by another process." (at line 17)

Below is my method to unzip:


Please help,

Thanks,
Sam

I have an application where I have been using the following code:

       using (ZipPackage zipPackage = ZipPackage.Open(stream, FileAccess.Read))
                    {
                        foreach (ZipPackageEntry file in zipPackage.ZipPackageEntries.ToList())
                        {
                            if (file.FileNameInZip.Equals("nsData.json"))
                            {
                                StreamReader streamReader = new StreamReader(file.OpenInputStream());
                                string jsonString = streamReader.ReadToEnd();
                            }
                       }
                 }

and it works as expected.

I have now tried to convert it to using ZipArchive instead, but I am having some problems.

I use the following code:

  using (ZipArchive archive = new ZipArchive(stream,ZipArchiveMode.Read, false, null))
                    {
                        System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();

                        ZipArchiveEntry entry = archive.GetEntry("nsData.json");
                        if (entry != null)
                        {
                            Stream entryStream = entry.Open();
                            StreamReader reader = new StreamReader(entryStream);
                            string content = reader.ReadToEnd();


                        }
            }

And when it comes to the last line it gives the following exception:

{Telerik.Windows.Zip.InvalidDataException: Invalid block length
   ved Telerik.Windows.Zip.DeflateDecompressor.DecodeBits()
   ved Telerik.Windows.Zip.DeflateDecompressor.DecodeUncompressedBlock(Boolean& endOfBlock)
   ved Telerik.Windows.Zip.DeflateDecompressor.CheckDecodeState()
   ved Telerik.Windows.Zip.DeflateDecompressor.Decode()
   ved Telerik.Windows.Zip.DeflateDecompressor.Inflate(Byte[] bytes, Int32 offset, Int32 length)
   ved Telerik.Windows.Zip.DeflateDecompressor.ProcessTransform(Boolean finalBlock)
   ved Telerik.Windows.Zip.DeflateTransformBase.TransformBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[] outputBuffer, Int32 outputOffset)
   ved Telerik.Windows.Zip.OperationStream.Read(Byte[] buffer, Int32 offset, Int32 count)
   ved Telerik.Windows.Zip.CompressedStream.Read(Byte[] buffer, Int32 offset, Int32 count)
   ved System.IO.StreamReader.ReadBuffer()
   ved System.IO.StreamReader.ReadToEnd()
   ved NstPortalUCSL.ViewModel.ViewModelHandlers.DataSourceHandler.DataSouceHandler.<>c__DisplayClassb.<InitDataSources>b__8(Object sender, GetAllNstInstancesCompletedEventArgs args)
   ved NstPortalUCSL.NstPortalWsSvc.NstPortalWsClient.OnGetAllNstInstancesCompleted(Object state)}


I would be wery thankfull if you could explain to me what I am doing wrong.

Hi, i am ziping some .pdf files to after download, when I run at VS2010 the zip was create correct, but when deploy at server the zip was create with 1kb, the WinRar open and show an empty zip file. I don´t receive any error. If I create a small file(10MB) work well, the zip have about 70MB. But at production should be create zips with 1GB or more.

I tried in 2 servers, both with 8GB ram and Win 2008 64 bits.

For 1 specific file I get wrong data after char 813302

It doesnt seem related to the size of the file, larger files work fine.

I do have an example that reproduces this, but so far I have only been able to reproduce it with sensitive data.

After compressing/decompressing I get:

In the original it said:

So the two Field are swapped, also there is some strange tag RowAANdh in it that I cant explain, it looks like the RowGroup="88"

The code I use is below

The output I get is:

Loading file: ..\..\PowerBrowser.gpf
Length original: 5691434
Length after compress/decompress: 5657083
Index first difference: 813302 

Hello,
 
    I tried to compress a byte array in C# using Zip Library, but it seems I a missing something because every time I call compress sending a byte array parameter, I cannot decompress it correctly please see code as follows to compress


and the following is how I decompress it back and the function will return byte array as follows:


Thanks,

Levi

Where can I find the documentation for SpreadProcessing?

http://www.telerik.com/help/wpf/introduction.html Does not have anything yet.

I'm a user of UI for WPF.

Thank you.

Hi

I not figure out how to save a (large) binary file to disk from a zip-Package back to a file.

Thanks for help