WebJun 25, 2014 · You are missing the point. Even if you request the entire stream from the Read method, it doesn't have to read the entire stream. It will read one byte or more, and return how many bytes were actually read. If you ignore the return value of the Read method, you may only get part of the file. – WebDec 24, 2011 · In .Net Framework 4+, You can simply copy FileStream to MemoryStream and reverse as simple as this: MemoryStream ms = new MemoryStream (); using (FileStream file = new FileStream ("file.bin", FileMode.Open, FileAccess.Read)) file.CopyTo (ms); And the Reverse (MemoryStream to FileStream):
C# : How can I quickly read bytes from a memory mapped file in …
WebYour code can be factored to this (in lieu of File.ReadAllBytes): public byte[] ReadAllBytes(string fileName) { byte[] buffer = null; using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read)) { buffer = new byte[fs.Length]; … WebDec 18, 2024 · @Daniel: A MemoryStream is likely to be slightly more efficient as it's designed to efficiently handle arrays of bytes. For instance, you can add only a part of an array with Write (unlike with AddRange on a List), and it doesn't access byte arrays via an interface, which might be slightly less efficient.You can also get the underlying array … tiny organisms that float in the water are
C# 4.0: Convert pdf to byte[] and vice versa - Stack Overflow
Web2. Filestream would be a perfect choice for your case: FileStream stream = new FileStream ("Dir\File.dat", FileMode.Open, FileAccess.Read); byte [] block = new byte [16]; while (stream.Read (block, 0, 16) > 0) { //as long as this does not return 0, the data in the file hasn't been completely read //Print/do anything you want with [block], your ... WebC# Tutorial - Read a binary file byte by byte in CSharp. Next » Binary File (1658/5847) « Previous. Read a binary file byte by byte in CSharp Description. The following code … WebNov 22, 2024 · Writing to a file. If you really want to save the file, you can use CopyTo : using (var stream = File.Create (Path.Combine (folder_I_Really_Want,file.FileName)) { file.CopyTo (stream); } If you want to read from the uploaded file into a buffer without saving to disk, use a MemoryStream. That's just a Stream API buffer over a byte [] buffer. tiny orb weaver spider