I know .NET Framework 3.5 has a class which allows you to compress invidual files.But how can I add multiple files to a single output compressed file and extract them back later without using 3rd party assemblies just using .NET Framework in Visual Basic?
View 3 RepliesI want to add multiple files to a single compressed file using System.IO.Compression. And extract them back...So I found this code on MSDN which works fine, but does not support adding multiple files into 1 single compressed file. [URL]
View 1 RepliesI need to open an archive and list the contents, size of files, and crc of files inside any compressed file. Be it rar, zip, ace, lha, 7zip, etc.. What's the easiest or best way to do this?
View 1 RepliesI have tryied to add the attributes but it dosn't make them that.If there is a way to so that tell me...
View 7 RepliesHow do I get the Compressed state of a file[code]...
View 10 RepliesI am trying to figure out the size of a file after compression.
By using fileInfo.Length I can get the size but that doesnt take into account compression.
I have tried the Api GetFileSizeEx but it always returns zero so maybe I didnt do ti corectly...
In [URL]I asked how do I get the compressed state of a file and I got a answer that works for files that is but now I'm looking to find out weather or not a Directory or Disk is Compressed Does any body have an answer
View 2 RepliesHow do I write a Text file as a compressed (zipped ) file?
View 1 RepliesI wrote a vb.net program that can view the documents It uses a reader and decompresses the sql blob to an outputStream and displays the document after a Response.Flush.We sent the code and databases to another group to host this website themselves. They can run the website but when they view the documents the documents open with a page full of small squares.
View 1 RepliesI am trying to programmatically extract from a compressed zipped folder which has the path of c:abc.zip and 4 files within the folder (one.txt, two. txt,three.txt and four.txt). I want to place two.txt in a destination path of c:xyz wo.txt.
View 3 RepliesI don't really know how to use compression in VB.net, so I was wondering if someone could explain it to me. I'm also wondering if it is possible to create a compressed file with your own extension.
View 13 RepliesI would like to decompress/compress text files in zlib format.
Here's what I tried:
- Downloaded zlibwipa.dll from [URL] and tried to add a reference to it but got an error saying it is an invalid assembly.
- Downloaded DotZLib from [URL] but can't get it to work, error message: Unable to load DLL 'zlib.DLL': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
- Looked at this [URL] but couldn't do much with it
This files are textfiles created from flash with ActionScript 3.0, but compressed, using the ByteArray class's compress() method. I know Flash uses zlib algorithm for this, and I would like to open and use this file from vb.net.
I am using something like :
FileOpen(1, OpenMapDialog.FileName, OpenMode.Binary, OpenAccess.ReadWrite)
Dim a() As Byte = {}
FileGet(1, a)
[Code]....
How do I decompress a zlib compressed file with byte arrays?
How do I write a Text file as a compressed (zipped ) file?Using vb 2008, .Net
View 5 Repliesit's possible to work with PCX image files in VB.Net? I know it's possible with most other formats like bmp and jpg.
View 10 RepliesI want to paste a file from the clipboard that has been copied from a compress folder using VB.net. By examining the clipboard, I see there is a FileGroupDescriptorW which seems to contain some information about the file. But I have not found how to use the information to grab the file and paste it.
View 1 RepliesI would like to upload files on Tinypic.com, but it does not work. Can someone help me? The URL is TinyPic - Free Image Hosting, Photo Sharing & Video Hosting.
View 1 RepliesBasically we ran into where, for whatever reason, we had to put some 3rd party dll in the GAC for it to work correctly. (The assemblies loaded, but had weird behavior and trouble finding types in the loaded assemblies. The app itself is a add in to another 3rd party program, so it must be something about how its being loaded.) So I tried to write some quick code to handle this without having to manually do this on each machine it was needed on. This is basically what the code boils down to:
Dim X As New System.EnterpriseServices.Internal.Publish
X.GacInstall(name)
Where name is the filename of the dll. This runs without error. It even add the assembly to the GAC. However, the application still experiences the same issue until you manually add the assembly in .Net Configuration window.
The following .bat file runs through only once when the argument contains a star (*), but if I write out all of the arguments I get an ECHO and PAUSE for each one.Doesn't the star work for batch files? [code]
View 2 RepliesI have a class that is a downloader (I didnt make it). You create an instance of it like so:
Dim _Down As New WebFileDownloader_Down.DownloadFileWithProgress(URL, Location)URL and Location are replaced by strings. This all works fine. But when I try to download multiple files, it doesn't work, I just add this bit for another file to be downloaded:
[Code]...
I did a function to one of my projects to a DLL file, and when the user starts the function a icon for that function grows (to show that the function is open).When the user closes the function the icon should shrink back again. But i have some problem whit that.The problem is: when i open a other form, the icon shrinks even if i haven't closed the function.What make it strange is that i have 2 function like that, the first one is the one that is behaving like this and the second one works the same way, but the second icon do not shrink when i open a new form. The second icon only shrinks when i close that function.
Here is the code for the opening of the first function:
Private Sub MedlemskortToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MedlemskortToolStripMenuItem.Click
frmm = New Medlemdskort.Form1
frmm.datap = Application.StartupPath & "\database2.mdb"
[code]....
I'm trying to get a progress bar to work while it copies all files in a folder to another. I've gotten the progress bar to show and display the progress, but during the copying process the app stops displaying anything if I click away and won't display anything until it finishes copying everything. It just freezes with a ghost image in the form while it's copying. How do I prevent the app from freezing during the copying process? I can't even minimize it or move the window around. I hope I made sense. Here's my code.
Dim Files = My.Computer.FileSystem.GetFiles(.SelectedPath, FileIO.SearchOption.SearchTopLevelOnly, "*.*")
Dim i As Integer
[Code].....
We have code in our former VB6 application, that ported fine to VB.NET, that plays a simple AVI file of the typical "flying folders" and "spinning maginfying glass" AVI. Under Windows XP, our application ran fine and everything was good.
Then we had customers start using Vista and Win7 and this stuff crashes. We were using the MS Common Controls (SP4) and then (SP6) - utilizing the Animation player. Now - these dont work and we get nasty errors.
I searched Microsoft and the web to answer the "what now?" question and though there are numerous suggestions, none of them work. We cant use Media Player because we dont want any menu - just the graphic. We dont know why, with the cool tools given in .NET, there is no animation player (seems a huge oversight...) But we need to get "unstuck" on this one, and we need that fast...
So, How does on play a simple AVI file using VB.NET code? What DLL or OCX does Microsoft recommend and is there a place we can find some sample code for it?
About what audio components are exposed by the .net framework?
Can I work with .wav files? What kind of things can I do with .wav files as far as vb .net is concerned? Can I record? What should I look for when looking for info for .net related audio at msdn. Where else can I find info on this?
My click-once app has english and spanish content. In development, it runs fine with the two resource files I have - named multilingual.en-US.resx & multilingual.es-MX.resx accordingly. When I publish it looses these resources for referencing.The files reside in the root directory for the app.
View 1 RepliesI am trying to write data to a binary file using the Print() method, but when I run it I get the System.IO exception Bad File Mode.
Here's the code for the FileOpen declaration, that might have something to do with it?
FileOpen(filenumber, "path to file", OpenMode.Binary, OpenAccess.Write, OpenShare.LockReadWrite)
Print(filenumber, expression(variable))
I have File Like "Sample.bak" and when I compress it to be "Sample.zip" I lose the file extension inside the zip file I meann when I open the compressed file I find "Sample" without any extension.
I use this code :
Dim name As String = Path.GetFileName(filePath).Replace(".Bak", "")
Dim source() As Byte = System.IO.File.ReadAllBytes(filePath)
Dim compressed() As Byte = ConvertToByteArray(source)
System.IO.File.WriteAllBytes(destination & name & ".Bak" & ".zip", compressed)
Or using this code :
Public Sub cmdCompressFile(ByVal FileName As String)
'Stream object that reads file contents
Dim streamObj As Stream = New StreamReader(FileName).BaseStream
[CODE]...
I need to compress the file without loosing file extension inside compressed file.
I found that when group by multiple values does not work well with VB.NET, but it works well with C# ,here are my code, is there something wrong with my VB.NET Code? Here is my VB.NET code:
[Code]...
I have an application that requires data be entered, and after entering, a button is clicked to process that data. Clicking the button works just as it should--the data is processed properly. In constructing a test module, I provide a set of data values, followed by:
btnWhatever.PerformClick()
Nothing happens. I have used this syntax for years, and it has always worked flawlessly. I have triple checked everything else and isolated the problem to the failure of the PerformClick(). The PerformClick() is in a test subroutine that does nothing but fill textboxes and labels with default data, then calls the PerformClick() on the button to begin processing. Again, the button works fine, the data is entered as it should be, but the PerformClick() does not fire the click event.
I have a form that works on my local Machine I created into. I have Office 2007 on this machine. I created the Form with the Excel 12 Reference. I move the Entire conetence of the Project folder to my work computer. Which has Office 2003. Do I need to recreate the form with the Excel 11 reference. I could not get the form to work on work computer. IT has a com error. I am acessing the EXE for the debug folder w/in the Bin Folder.
View 7 Replieswill SQL statements that work in Compact SQL Server also work in the Express Edition of SQL Server?
View 2 Replies