C# streamreader count lines
WebApr 23, 2014 · StreamReader ts = new StreamReader (fs); retval = ts.ReadToEnd (); int eol = retval.IndexOf ("\n"); if (eol >= 0) { // Found it fs.Close (); return retval.Substring (eol+1); } //ts.Close (); Don't do this!! //ts.Dispose (); Or that!! } fs.Close (); return retval; } Friday, August 18, 2006 10:13 PM 0 Sign in to vote Here is my way of doing it. WebJan 9, 2012 · C# ssr.Start (); for ( int i = 0; i < 100; i++) { StreamReader sr = new StreamReader ( @"D:\Temp\MyLargeTextFile.txt" ); index = LinesCountStream (sr); sr.Dispose (); } ssr.Stop (); ... C# static long LinesCountStream (StreamReader sr) { long count = 0 ; while (sr.ReadLine () != null ) { count++; } return count; }
C# streamreader count lines
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WebMar 29, 2024 · public class StreamReader { public Task < string > ReadLineAsync (); public Task < string > ReadToEndAsync (); public Task < int > ReadAsync ( char [] buffer, int index, int count ); public Task < int > ReadBlockAsync ( char [] buffer, int, int count ); } WebJun 24, 2011 · StreamReader^ reader; int lineCount = 0; reader = gcnew StreamReader ("path"); String^ data; ArrayList^ theArray = gcnew ArrayList (lineCount); while (0Peek ()) { data = reader->ReadLine (); theArray->Add (data); lineCount++; }
WebNov 23, 2006 · You can't get the number of lines in the file using a StreamReader. You will either have to read it all and increment a counter or use File.ReadAllLines (). Question 2. … WebBy repeatedly executing ReadLine within a while loop, you can count the lines with an incrementing variable, as in the following sample code: int count = 0; using (StreamReader reader = File.OpenText (@"c:\Test\TextFile.txt")) { while (reader.ReadLine () != null) { count++; } } 24 June 2010
WebJul 18, 2024 · using (var reader = new StreamReader ("")) { var lines = new List (); while (!reader.EndOfStream) { var line = reader.ReadLine (); if (LineIsWanted (line)) lines.Add (line); }; var actualLines = lines.Take (lines.Count - 4); }; ReadAllLines is a lot cleaner in my opinion. You could get fancy here if you wanted. http://duoduokou.com/csharp/50777903789730266477.html
WebApr 12, 2024 · C# : Is StreamReader.Readline () really the fastest method to count lines in a file? Delphi 29.7K subscribers Subscribe No views 55 seconds ago C# : Is StreamReader.Readline () really...
WebJan 4, 2024 · using FileStream fs = File.OpenRead (fileName); using var sr = new StreamReader (fs); We pass the FileStream to the StreamReader. If we do not explicitly specify the encoding, the default UTF8 is used. string line; while ( (line = sr.ReadLine ()) != null) { Console.WriteLine (line); } We read the data with the StreamReader's WriteLine … iphone 11 size inchWebJan 22, 2024 · To read text files in C# programming language, you’ll need to use the StreamReader class. Here is an example: StreamReader reader = new StreamReader("file.txt"); string line = ""; while ( (line = reader.ReadLine()) != null) { Console.WriteLine(line); } reader.Close(); iphone 11 slim gloss caseWeb我有這個代碼: arr是List lt bool gt 。 在具體的測試環境中, arr是: 為 為真, 為假。 它應該返回 。 為什么我會收到此溢出異常 確切地說:我在這一行得到錯誤: rtrnVal rtrnVal arr a BigInteger.Pow , a : 編輯:以下是調用它的代碼: iphone 11 size compared to iphone 8 plus sizeWebMay 27, 2024 · c# lines of code counter. count line c#. c# streamreader count number of lines. c# implement the function count that returns the number of lines with specific … iphone 11 slow after ios 16WebJul 5, 2012 · double d1 = 0D; double d2 = 0D; using (StreamReader sr = new StreamReader(openFileDialog2.FileName)) { string line; while( (line = sr.ReadLine())!=null) { if(line.Contains(";")) { string[] data = line.Split(';'); d1 = double.Parse(data[0]); d2 = double.Parse(data[1]); } } } MessageBox.Show("Numeric data are: + d1.ToString () + " … iphone 11 smart gsmWebDec 23, 2024 · C# StreamReader. To read a string from the stream, the C# StreamReader class is used which inherits the TextReader class. To read data from the stream, the Read () and ReadLine () methods are facilitated by the C# StreamReader class. iphone 11 smart plan no cash-outhttp://duoduokou.com/csharp/17212126151365570821.html iphone 11 slim case