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C# filestream read end

Web8 Answers. You need to seek on the stream, like you did, then call DiscardBufferedData on the StreamReader. Documentation here: Stream s = new MemoryStream (); StreamReader sr = new StreamReader (s); // later... after we read stuff s.Position = 0; sr.DiscardBufferedData (); // reader now reading from position 0. WebJan 25, 2024 · 2. File.ReadAllText is definitively the easiest one to use, but as "Devendra D. Chavan" points out, it is not the fastest. So if you are reading small files, then it would be a better choice to use …

c# - How can I read/stream a file without loading the entire file …

WebJul 15, 2014 · A simple (but still slow) way would be to use File.ReadLines (...): var line = File.ReadLines (fileName).Skip (34571).FirstOrDefault (); The best way, however, would be to know the actual byte offset of the line. If you remember the offset instead of the line number, you can simply seek in the stream and avoid reading the unnecessary data. WebApr 28, 2024 · Stream s; int len = (int)s.Length; byte[] b = new byte[len]; int pos = 0; while((r = s.Read(b, pos, len - pos)) > 0) { pos += r; } A slightly more complicated solution is necesary is s.Length exceeds Int32.MaxValue. But if you need to read a stream that large into memory, you might want to think about a different approach to your problem. long way montana of 300 https://bexon-search.com

c# - ReadAllLines for a Stream object? - Stack Overflow

WebNov 7, 2011 · The FileStream constructor allows you to specify FileOptions. For example, if you are reading a large file sequentially from beginning to end, you may benefit from … WebSep 6, 2016 · The first iteration uses FileStream.Read() and the second iteration uses FileStream.ReadAsync(). private async void . Stack Overflow ... see other answers). If you eventually end up with the whole file in memory anyway, just query the file's size, allocate a large enough buffer and read all at once. ... Read Multiple Big Files in Using … WebC, C ++, C#, Python, Java Programming -Reading de archivos, programador clic, el mejor sitio para compartir artículos técnicos de un programador. longway mixer grinder customer care

FileStream.ReadAsync very slow compared to Read ()

Category:c# - Save and load MemoryStream to/from a file - Stack Overflow

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C# filestream read end

C#怎样实现文件下载断点续传-织梦云编程网

Webc#进阶笔记系列，帮助您强化c#基础，资料整理不易，欢迎关注交流！ 上一篇介绍了xml序列化及json序列化，这一篇接着介绍二进制序列化。 回顾一下上一篇讲的序列化方式： 二进制序列化保持类型保真，这对于多次调用应用程序时保持对象状态非常有用。 例如 ... WebIf you want to use StreamReader then yes, you will have to use ReadLine and loop throught the StreamReader, reading line by line. string line; using (StreamReader reader = new …

C# filestream read end

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WebMay 5, 2024 · So, you have to read "lines" to the end to be able to get the last one. Another way is to read "lines" via File.ReadAllLines () method: C# string [] lines = File.ReadAllLines ( "fullfilename.txt" ); int cnt = lines.Length-1; string lastline = lines [cnt]; Note: there's no … WebApr 14, 2024 · 怎么实现的断点续传？. 断点续传就是下载了一半断网或者暂停了，然后可以接着下载。. 不用从头开始下载。. 很神奇吗，其实简单得很，我们想想也是可以想到的。. 首先客户端向服务端发送一个请求（下载文件）。. 然后服务端响应请求，信息包含文件总大小 ...

WebFeb 18, 2024 · There are two ways: simple and inefficient, or horrendously complicated but efficient. The complicated version assumes a sane encoding. Unless your file is so big that you really can't afford to read it all, I'd just use: var lastLine = File.ReadLines ("file.txt").Last (); Note that this uses File.ReadLines, not File.ReadAllLines. http://duoduokou.com/csharp/69087758046519791527.html

http://www.dedeyun.com/it/csharp/98826.html WebAnother way to read CryptoStream is to using CopyTo methord: ... using (var output = new MemoryStream ()) { cryptStream.CopyTo (output); return output.ToArray (); } ... Share Improve this answer Follow answered Feb 5, 2024 at 11:58 SLdragon 1,407 16 16 Add a comment -1 The KeySize must be specified first.

WebSep 24, 2010 · You want to open a FileStream in binary mode. Periodically, seek to the end of the file minus 1024 bytes (or whatever), then read to the end and output. That's how …

WebWhen looking into the using statement at msdn it says the following: When the lifetime of an IDisposable object is limited to a single method, you should declare and instantiate it in the using statement. The using statement calls the Dispose method on the object in the correct way, and (when you hop on hop off bus amsterdam routeWebJul 29, 2011 · const int chunkSize = 1024; // read the file by chunks of 1KB using (var file = File.OpenRead ("foo.dat")) { int bytesRead; var buffer = new byte [chunkSize]; while ( (bytesRead = file.Read (buffer, 0, buffer.Length)) > 0) { // TODO: Process bytesRead number of bytes from the buffer // not the entire buffer as the size of the buffer is 1KB // … hop on hop off bus athens greece from piraeusWebMar 30, 2024 · Get rid of the StreamReader, and just use the FileStream. See my answer. – Ritch Melton Mar 5, 2011 at 4:15 The reader.DiscardBufferedData (); does help. I added it before the end of the loop. I am going to look at other answers as well just to check if it gives me results faster. Thanks – Pranav Shah Mar 5, 2011 at 4:21 long way north full movieWebFeb 18, 2024 · There are two ways: simple and inefficient, or horrendously complicated but efficient. The complicated version assumes a sane encoding. Unless your file is so big … hop on hop off bus belfast discount codeWebOct 18, 2012 · You assume that each buffer ends at the end of a character. Use a TextReader (e.g. StreamReader) to read text data, avoiding this sort of problem. You're … hop on hop off bus benidormWebKnowing that Stream class contains int Read (byte [] buffer, int offset, int size) and void Write (byte [] buffer, int offset, int size) methods, implement in C# the NetToFile method that copies all data received from NetworkStream net instance to the FileStream file instance. long way north filmWebFeb 16, 2011 · I'll add my suggestion: if you don't need the "encoding" part of the BinaryReader (so you don't use the various ReadChar / ReadChars / ReadString) then … long way north dvd