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How to open a plain text file in C#?
To open a plain text file, use the StreamReader class. The following opens a file for reading −
StreamReader sr = new StreamReader("d:/new.txt")Now, display the content of the file −
while ((line = sr.ReadLine()) != null) {
Console.WriteLine(line);
}Here is the code −
Example
using System;
using System.IO;
namespace FileApplication {
class Program {
static void Main(string[] args) {
try {
using (StreamReader sr = new StreamReader("d:/new.txt")) {
string line;
// Read and display lines from the file until
// the end of the file is reached.
while ((line = sr.ReadLine()) != null) {
Console.WriteLine(line);
}
}
} catch (Exception e) {
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine(e.Message);
}
Console.ReadKey();
}
}
}Output
The file could not be read: Could not find a part of the path "/home/cg/root/4281363/d:/new.txt".
Updated on: 22-Jun-2020
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