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Question: Read millions of records from txt file using c#
Time: Updated 53 minute ago
Modified: Asked 53 days ago
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Read millions of records from txt file using c#

To read millions of records from a txt file using C#, you can use the StreamReader class in combination with a while loop. Here is an example code snippet that demonstrates this:

csharp
using System;
using System.IO;

class Program {
    static void Main(string[] args) {
        string filePath = @"C:\path\to\file.txt";
        
        using (StreamReader reader = new StreamReader(filePath)) {
            string line;
            while ((line = reader.ReadLine()) != null) {
                // Process the line here
                Console.WriteLine(line);
            }
        }
    }
}

In this code, the StreamReader class is used to open the file and read its contents line by line. The while loop continues reading lines from the file until it reaches the end of the file. Each line is processed inside the loop, in this case by simply writing it to the console.

Note that the using statement is used to ensure that the StreamReader object is properly disposed of when it is no longer needed. This is important for performance and resource management reasons. Also, make sure to replace the filePath variable with the actual path to your file.

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