c# Read Text File

To read all text at once 

using System.IO;

string fileLocation= @"C:\myFile.txt";

string allText = File.ReadAllText(fileLocation);

To read line by line

using System.IO;

string fileLocation= @"C:\myFile.txt";

using (StreamReader streamReader = File.OpenText(fileLocation))

{

    while (streamReader.Peek() >= 0)

    {

        Console.WriteLine(streamReader.ReadLine());

    }

}