Question

I am trying to Make a Stream Writer and then write some input from the Console to a file and then Read the Content out. The only problem is I want to do it in two different methods. Write from here: addbook() and read from here: list_books(). But I can’t read from that file because the stream reader does not let me access any of my variables or that file to be used again.

//So I am trying to write from the static void addbook method and then read from the static void list_books method

//I want to Write from one static void and then I want  to read them from a different method.

static void addbook()
{
    //Here is where I get my strings that I will write

    Console.Write("Book Title:");
    string title = Console.ReadLine();

    Console.Write("ISBN#:");
    string isbn = Console.ReadLine();

    Console.Write("Author:");
    string author = Console.ReadLine();

    Console.Write("Publish Date:");
    string publish_date = Console.ReadLine();

    //Here Is where I create the Stream Reader and Writer
    //And where I write to the file
    var fs = File.Open("Librarybooks.txt", FileMode.OpenOrCreate,FileAccess.ReadWrite);
    var sw = new StreamWriter(fs);
    var sr = new StreamReader(fs);

    sw.WriteLine(title.ToCharArray());
    sw.WriteLine(isbn.ToCharArray());
    sw.WriteLine(author.ToCharArray());
    sw.WriteLine(publish_date.ToCharArray());

    Console.WriteLine("Book added Successfully!!");
}

static void list_books()
{
    //Here is where I want to read from so I can just call the list_books method.
    //But I can't access the StreamReader or StreamWriter
    //I just want to be able to read from the file.
}

Answer 1

private const string FILE_PATH = "Librarybooks.txt";

static void addbook()
{
    //Here is where I get my strings that I will write

    Console.Write("Book Title:");
    string title = Console.ReadLine();

    Console.Write("ISBN#:");
    string isbn = Console.ReadLine();

    Console.Write("Author:");
    string author = Console.ReadLine();

    Console.Write("Publish Date:");
    string publish_date = Console.ReadLine();

    //Here Is where I create the Stream Reader and Writer
    //And where I write to the file
    using (var fs = File.Open(FILE_PATH, FileMode.OpenOrCreate,FileAccess.ReadWrite))
    {
        using (var sw = new StreamWriter(fs))
        {
            using (var sr = new StreamReader(fs))
            {
                sw.WriteLine(title.ToCharArray());
                sw.WriteLine(isbn.ToCharArray());
                sw.WriteLine(author.ToCharArray());
                sw.WriteLine(publish_date.ToCharArray());

                Console.WriteLine("Book added Successfully!!");
             }
         }
     }
}

static void list_books()
{
    using (StreamReader sr = new StreamReader(FILE_PATH))
    {
       string fileContent = sr.ReadToEnd();
    }
}