Unzip File Using GZipStream?
Mar 24, 2011How can i unzip file using GZipStream?
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GZipStream Zip File Password Protect?
Dec 13, 2010How can i password protect my zip file?
i have the code below i got from the net but the problem is no code to protect file the file
Public Function CompressFile(ByRef file As String, ByRef destination As String) As String
'Make sure user provided a valid file with path
[Code]....
VS 2008 : GZipStream Extracts Only 1/4 Of The File?
Mar 9, 2010This code uncompresses 1/4 of the gzipped file. & I took it directely from the help file sample function codes.Any idea why is it doing this or how to fix it? gz file is attached below & it is not damaged.Edit: I read some stuff hire & there & found this: tutorial that says that MSDN doesn�t set the size of the array and uses a default size of 4086 bytes. But I have no clue how to implement it into my code.In this gz file there are only around 50 lines but there are files with over 1000 lines. So I tested & indeed this seems to be the problem, because if I increase the buffer(4096) more lines are extracted.
PHP
Imports System
Imports System.Collections.Generic
Imports System.IO
[code].....
Error When Unzipping File Using GZipStream(magic Number)
Jul 9, 2009unzipping file using GZipStream.Heres the solution but i hope that i don't need to imports another dlls [URL] the zip files i compressed with 7z. and here the code...
[Code]...
Unzip A File With .net?
Jan 8, 2008As there are no zip/unzip functions in vb.net, has anyone figured a way to do this without using any 3rd party components?I was thinking there might be a way to call a shell32 command to gzip.dll, or some other way to use windows native unzip functions?
View 14 RepliesAny Way To Unzip File Without External DLL?
Oct 4, 2009Is it possible to unzip a file without having to use an external (not .NET default) resource?
View 1 RepliesDelete The Zip File After Unzip
Aug 17, 2011I have the following Sub which works perfectly fine. However, I want to add an extra function to say that delete the .zip file that has been unzipped. So when it unzips the zipped files it also deletes them. [Code]
View 14 RepliesHow To Unzip File Using Chilkat
Jun 30, 2011How unzip file using chilkat?I have problem to openzip(filepath) using vb.net? [code]How to open zip file using chilkat.
View 1 RepliesZip And Unzip A File In VB 2010?
Jan 3, 2011I am trying to find out how to zip and unzip a file in Visual Basic 2010. I have looked extensively on google and youtube, but found little of use. I was able to run one block of code though:
Sub CompressFile(ByVal filetozip As String, ByVal zipfile As String)
Try
Dim fs As FileStream
[Code]....
but this is not what I need. I am creating a Desktop Screen Capture Program, for personal use, that takes a screen when a set timer ticks (1 min or 60000 milliseconds) and in that timer tick a call to a sub is made, CompressFile( file, compressedfilename). See the problem here? It overwrites the compressed file with the second screenshot. So I need to know how to create a Zip Archive, preferably Not using Gzipstream. I need one that i can open in Winzip or 7-zip. And before you ask, yes I tried to add a reference to the 7z.dll, and error. It does not matter whether the solution to this problem requires outside or inside visual basic, though i ask you ensure it is Virus-Free if it involves downloading.
Download Zip File From FTP And UnZip To Local PC
Nov 25, 2010I am looking for some help in downloading latest Zip file from a FTP location and UnZIP it by saving to a particular location using VB.NET GipStream or some other method. I prefer not to use any 3rd party controls.
View 1 RepliesUnzip A File In .net Without Using Third Party Software?
Nov 4, 2009how can I unzip a file in vb.net without using third party software as I am not allowed to?
View 2 RepliesUnzip And Extract File In Program?
Jan 30, 2009I want to know how to unzip a zip file and extract the files to a particular location
View 5 RepliesNative .NET To Unzip Single File From A .ZIP File?
Oct 28, 2010extract a single file (WantedFile.xml) from a .ZIP file (THEBIGZipFile.zip) using native VB.NET Code?I think .NET FW 3.5 or 4.0 has "System.IO.Packaging.Package " which can be used? Not sure. Please advice.
Note: I will not be able to install or distribute any other DLLs like (ICSharp or VJ# or cant use process command to invoke winzip etc).
C# GZipStream To String?
Aug 12, 2010I am in need of a way to write a GZipStream to a string.I am using:GZipStream Decompress = new GZipStream(inFile, CompressionMode.Decompress)I have tried several methods, but can't figure it out.
View 1 RepliesVS 2005 - Compressing A Dataset Converted To XML Using The GZipStream Class Added In 2.0
Mar 25, 2009I am compressing a dataset converted to XML using the GZipStream class added in 2.0. There are a few things bothering me about this. Here's the code I am using to decompress the XML file:
Using inFile As New System.IO.FileStream(flnm, IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim zStrm As New System.IO.Compression.GZipStream(inFile, IO.Compression.CompressionMode.Decompress)
Dim buff(999) As Byte
[CODE]...
This seems inordinately awkward, as I am taking the stream, reading it out into byte buffers, then writing those byte buffers to a memory stream that is then passed to the dataset.ReadXml() method. The reason for this seems to have to do with what is happening in the line colored red. That line is adding a closing > onto the end of the stream. Without that, ReadXml complains about an unclosed dataset. I found out that the > was missing by writing the stream into a string and pasting the string into WordPad. Without that missing >, it appears that I wouldn't need to be using that memory stream at all, and could simply pass in the GZipStream to ReadXML, but as far as I can tell, it's impossible to look at the GZipStream to be sure that the > is not there, and it may be impossible to add it (I haven't tried).
So why is the > missing? Here's the code used to create the file that is being read into the filestream in the above
VB Using ms As New System.IO.FileStream(flnm, IO.FileMode.OpenOrCreate, IO.FileAccess.Write, IO.FileShare.Write)
Dim zStrm As New System.IO.Compression.GZipStream(ms, IO.Compression.CompressionMode.Compress)
ds.WriteXml(zStrm, XmlWriteMode.WriteSchema)
End Using
The real kicker to all of this is that while I was dissecting the first chunk of code, I added a line to check for cnt<1000. My intention was to see the last buffer that was being written into the memory stream to see whether the final > was actually there, or not. To my surprise, I reached the cnt<1000 twice. That means that one read did not read a full 1000 bytes, but read only 675. The next three or four reads were a full 1000 bytes, then the final read was just a few hundred bytes. It is my understanding that Read will return a full buffer if there are that many bytes left to read, and there were, so why did it return only a partial buffer? That suggests that there might be a hole in my XML, though with a half meg file, it's a bit much to read through it looking for something missing. However, the XML that was returned was turned into a dataset that I then merged into some existing data using code that has been working with uncompressed XML files, and I got an error that I should never have received. That may indicate that the XML was, in fact, missing something, though I will have to study the matter further to figure out whether or not that is the case. My major question has to do with the missing '>' at the very end of the file.
How To Unzip Archive
Oct 15, 2011How can I make my application to extract files inside .rar/zip archive in application.startupPath directory!?
View 2 RepliesHow To Unzip Folder
Jul 27, 2011The following code allows me to browse and unzip a file, I want to be able to select a folder instead of a filename and unzip all the .zip files in that folder.How can I update the code please..
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ofd As New OpenFileDialog
[code].....
How To Zip And Unzip Files
Apr 15, 2012I've been working on an application that uses TCP to send messages to another computer, but I am going to be updating it alot!I know how to make my program update itself, but I just want a progress bar so you know how long it will take until the file is completely downloaded.Also does anyone know how to zip and unzip files in VB.NET, it would make my updater easier if it can just download a zip file and then unzip it and copy the contents to my applications running directory.
View 2 RepliesRegarding Unzip Using Shell Dll?
Apr 17, 2009I am using Shell Dll to unzip zip file in vb.net 2005. Following is the code for this.
Dim sc As Shell32.Shell = New Shell32.Shell
Dim srcf As Shell32.Folder = sc.NameSpace(src)
Dim desf As Shell32.Folder = sc.NameSpace(des)
[code].....
UNZIP NullReferenceException?
May 12, 2009I keep getting a NullReferenceException error on this UNZIP code:
Dim Sh As New Shell
Dim SF As Folder = Sh.NameSpace("C:\test.zip")
Dim DF As Folder = Sh.NameSpace("C:\test")
[Code]....
i checked to see if i had a test.zip file in my root dir...its there... i have shell32 referenced
.net - Zip/unzip Files Without 3rd Party?
Jul 27, 2011Is there any code for vb.net so i can zip and unzip file without any 3rd party programs e.g. (i know this is not right)
Using zip As ZipFile = New ZipFile
zip.AddDirectory(directory)
zip.Save(targetZip)
End Using
Automatically Zip/unzip Files In Vb?
Aug 24, 2010just as the title says i want to zip/unzip files using vb ocde to make a standalone vb application. I saw a couple out there but didnt really know how to work with them
View 2 RepliesLibrary To Unzip .Z Files?
Dec 28, 2010I need to unzip a list of .Z files which will be kept in a folder using Visual Basic.NET. For example, consider that there is a folder like C:FilesToBeUnzipped. Inside this folder there will some 5 to 6 files with .Z as extension. I need to unzip all these .Z files and save the unzipped files in a folder like C:UnzippedDataFiles.
Is this possible in VB.NET? Is there any free component or class library to achive it?
Looking For Log4net.dll - Download Will Not Unzip?
Jun 5, 2009Looking for log4net.dll - download will not unzip I have been to [URL].. and downloaded both files: incubating-log4net-1.2.10.zip incubating-log4net-1.2.9-beta.zip. Neither one will unzip. I have tried downloading twice and have used WinZip 12 and whatever comes with XP.
View 4 RepliesGet A Program To Zip And Unzip Files Using Script?
Apr 4, 2007i would like to zip and unzip a folder using visual basic script,
View 2 RepliesProgrammatically Zip / Unzip Files In Program?
Sep 6, 2009Is it possible to programmatically zip/unzip files in vb.net? Meaning, not that it will extract the files for the user, but take the files inside the zip and be able to use them in the application?
View 2 RepliesUnzip All Files In A Folder At One Time
Aug 2, 2011I have a button when clicked unzips a file in a located folder. This code unzips one filename at a time. What I want to do is unzip all files in a folder at one time.. assuming the folder has been selected and the target folder selected too... The code to unzip each filename is shown below...
[Code]...
Unzip Folders And Subfolder And Files Using 2.0?
Dec 20, 2009I want to unzip folder and all its contents like sub folder and files. Can I write a program in vb.net 2005 to solve this issue.
View 1 RepliesVS 2005 Zip/Unzip With Packaging Namespace?
Sep 8, 2009I'm using the System.IO.Packaging namespace in my VS2005 application. The zip compression works fine for 1 or many files. The unzip though for some reason seems to only unzip one file. Initially I did this in vs2008 at home and it worked fine, but now at work with vs2005 it's only unzipping one of the files. Can you see anything that I might be doing wrong?
Public Sub UnzipArchive(ByVal zipFile As String, ByVal UnzipLocation As String)
If (Not zipFile Is Nothing And Not UnzipLocation Is Nothing) Then
Dim zipFilePackage As Package
[code].....
Unzip Function - Receive Download Folder With Files
Oct 26, 2011I have the following function below, which works fine if you want to Extract a zip file. But, I have a problem, lets take an example, test.zip , which will have a folder within called Download which has txt files. Therefore, when I unzip I receive the Download folder with the files in it. Now, instead I want to unzip the zip folder to create a Test folder and within the Test folder the Download folder which will have all the text files. The function I have does ONLY the Download folder and not the test folder.
Private Sub unzip(ByVal filename As String, ByVal targetdir As String, ByVal overwrite As Boolean, Optional ByVal password As String = "")
Dim inputStrm As New ZipInputStream(File.OpenRead(filename))
inputStrm.Password = password
Dim nextEntry As ZipEntry = inputStrm.GetNextEntry()
[Code] .....