Compress files .net

BMP Bitmap Image. DCM Digital Image. DGN Drawing file. DWG Proprietary binary files. FBX 3D Format. ICS iCalendar. J2K Wavelet Compressed Image. JT Jupiter Tessellation File. M4V Apple Video Container. MD Markdown Language. MP3 Digitally Encoded File. PLT Vector-based plotter file. TXT Text Document. Asynchronously writes compressed bytes to the underlying GZip stream from the specified byte array.

Asynchronously writes a sequence of bytes to the current stream, advances the current position within this stream by the number of bytes written, and monitors cancellation requests. Asynchronously writes compressed bytes to the underlying GZip stream from the specified read-only byte memory region. Writes a byte to the current position in the stream and advances the position within the stream by one byte. Converts a managed stream in the.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? Namespace: System. Compression Assembly: System. In this article. Gets a value indicating whether the stream supports reading while decompressing a file. Gets a value that determines whether the current stream can time out. Inherited from Stream. CopyTo Stream. Reads the bytes from the current stream and writes them to another stream.

CopyTo Stream, Int CopyToAsync Stream. Asynchronously reads the bytes from the current stream and writes them to another stream. CopyToAsync Stream, Int CreateObjRef Type. Inherited from MarshalByRefObject. Dispose Boolean. EndRead IAsyncResult. EndWrite IAsyncResult. Equals Object. Determines whether the specified object is equal to the current object. Inherited from Object. FlushAsync CancellationToken.

Serves as the default hash function. Obtains a lifetime service object to control the lifetime policy for this instance. MemberwiseClone Boolean. Read Byte[], Int32, Int ReadAsync Byte[], Int32, Int I need a native windows call or something like that; I really dislike the idea of starting a process, but I will if I absolutely have to. A PInovke call would be much better. Failing that, let me tell you what I'm really trying to accomplish: I need the ability to let a user download a collection of documents in a single request.

Any ideas on how to accomplish this? If using the 4. Are you using. NET 3. You could use the ZipPackage class and related classes. Its more than just zipping up a file list because it wants a MIME type for each file you add. It might do what you want. I'm currently using these classes for a similar problem to archive several related files into a single file for download. We use a file extension to associate the download file with our desktop app. One small problem we ran into was that its not possible to just use a third-party tool like 7-zip to create the zip files because the client side code can't open it -- ZipPackage adds a hidden file describing the content type of each component file and cannot open a zip file if that content type file is missing.

I was in the same situation, wanting to. NET instead of a third party library. As another poster mentioned above, simply using the ZipPackage class introduced in. If this file is added, then the resulting ZIP package can be opened directly from Windows Explorer - no problem. Once added, I could browse the package from Windows Explorer or programmatically decompress and read its contents. Based off Simon McKenzie's answer to this question , I'd suggest using a pair of methods like this:.

Looks like Windows might just let you do this Unfortunately I don't think you're going to get around starting a separate process unless you go to a third party component. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Ask Question. Asked 12 years, 7 months ago. Active 2 years, 11 months ago. Viewed k times. I'm pretty sure this is not a duplicate so bear with me for just a minute.

Improve this question. Cheeso k 96 96 gold badges silver badges bronze badges. Esteban Araya Esteban Araya I found this example usefull when I was searching for the same thing a few weeks ago: syntaxwarriors. Anyone used DotNetZip?? Show 1 more comment. Active Oldest Votes. Open "test. Compression System. FileSystem For.