Read lines from file c#
WebIn C#, you can use the System.IO namespace to read a text file line by line. The StreamReader class is particularly useful for this purpose. Here's an example of how you … WebDec 27, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
Read lines from file c#
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Webpublic override void ReadFile (string strFileName) { try { using (StreamReader sr = new StreamReader (@"C:\MyFolder\TextFile.txt")) { String line = sr.ReadLine (); Console.WriteLine (line); } } catch (Exception e) { Console.WriteLine ("The file could not be read:"); Console.WriteLine (e.Message); } } WebMar 9, 2024 · File.ReadAllLines (String) is an inbuilt File class method that is used to open a text file then reads all lines of the file into a string array and then closes the file. Syntax: …
WebNov 23, 2024 · Here we create a new JsonSerializer (again, coming from Newtonsoft), and use it to read one item at a time.. The while (jsonReader.Read()) allows us to read the stream till the end. And, to parse each item found on the stream, we use jsonSerializer.Deserialize(jsonReader);.. The Deserialize method is smart enough to … WebUse StringReader () to read a string line by line: StringReader reader = new StringReader (multilinestring); while ( (line = reader.ReadLine ()) != null) { //do what you want to do with the line; }; Share Follow answered Nov 25, 2024 at 19:51 Ashkan Mobayen Khiabani 33.3k 32 102 169 Add a comment Your Answer Post Your Answer
WebJun 1, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. WebMar 19, 2012 · Read from your datasource ( in this case the text file) and store it in a List of our Book Class List bookList=new List (); bookList=BookManager.GetBookList (); // gets the list of books read from the text file. Store this in your global scope so that you can access it from any of your methods in the form.
Webpublic static IList GetLogTail (string logname, string numrows) { int lineCnt = 1; List lines = new List (); int maxLines; if (!int.TryParse (numrows, out maxLines)) { maxLines = 100; } string logFile = HttpContext.Current.Server.MapPath ("~/" + logname); BackwardReader br = new BackwardReader (logFile); while (!br.SOF) { string line = …
WebJun 1, 2024 · File.ReadLines (String) is an inbuilt File class method that is used to read the lines of a file. Syntax: public static System.Collections.Generic.IEnumerable ReadLines … crypt of charlie gehringerWebFeb 23, 2014 · Rather than using StreamReader directly, use File.ReadLines which returns an IEnumerable. You can then use LINQ: var first10Lines = File.ReadLines (path).Take (10).ToList (); The benefit of using File.ReadLines instead of File.ReadAllLines is that it only reads the lines you're interested in, instead of reading the whole file. crypt of cthulhu pdfWebAug 24, 2011 · If you look with Reflector you'll see that in the end File.ReadLines opens a FileStream (path, FileMode.Open, FileAccess.Read, FileShare.Read, 0x1000, FileOptions.SequentialScan); So Read-only share. (it technically opens a StreamReader with the FileStream as described above) crypt of dalnir p99WebFile.ReadLines() returns an object of type System.Collections.Generic.IEnumerable File.ReadAllLines() returns an array of strings. If you want to use an array of strings you need to call the correct function. You could use Jim solution, just use ReadAllLines() or you could change your return type.. This would also work: crypt of dawnWebpublic static String [] ReadAllLines (this TextReader reader) { String line; List lines = new List (); while ( (line = reader.ReadLine ()) != null) { lines.Add (line); } return lines.ToArray (); } While there are reasons to not use ReadAllLines at all, this is … crypt of dalnir everquestWebAug 21, 2014 · using (TextReader reader = File.OpenText ("test.txt")) { string text = reader.ReadLine (); string [] bits = text.Split (' '); int x = int.Parse (bits [0]); double y = double.Parse (bits [1]); string z = bits [2]; } Again, you'd want to perform appropriate error detection and handling. crypt of dalnirWebApr 22, 2011 · 2 Answers Sorted by: 15 string [] lines = File.ReadAllLines (...); //i hope that the file is not too big Random rand = new Random (); return lines [rand.Next (lines.Length)]; Another (and maybe better) option is to have the first line of the file contain the number of records in it and then you don't have to read all the file. Share crypt of dark secrets 1976