A shorter solution to StreamReader in .net core

Question

I have this basic code to read a file with

StreamReader

with Dotnet Core in VS Code. I can do similar operation in Visual Studios with .net

new StreamReader("file.json")

which looks small and compact.

I am looking for another class in dotnet core which could achieve similar results with less code

 using System;

 using System.IO;



namespace ConsoleApplication

{

    public class Program

    {

        public static void Main(string[] args)

        {

            StreamReader myReader = new StreamReader(new FileStream("project.json", FileMode.Open, FileAccess.Read)); 

            string line = " "; 



            while(line != null)

            {

                line = myReader.ReadLine(); 

                if(line != null)

                {

                    Console.WriteLine(line); 

                }

            }



            myReader.Dispose();

        }

    }

}

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Answer 1

In the full framework, the close method is redundant with Dispose. The recommended way to close a stream is to call Dispose through using statement in order to ensure closing stream even if an error happen.

You can use System.IO.File.OpenText() to directly create a StreamReader.

Here, just what you need to to open and close a StreamReader :

using (var myReader = File.OpenText("project.json"))
{
    // do some stuff
}

The File class is in the System.IO.FileSystem nuget package

A shorter solution to StreamReader in .net core

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