using System;

using System.IO;

public class Program

{

    public static void Main()

    {

        Console.WriteLine($"{nameof(DirectUsage)} with dispose");

        DirectUsage(DisposeIt);

        Console.WriteLine();

        Console.WriteLine($"{nameof(DirectUsage)} with close");

        DirectUsage(CloseIt);

        Console.WriteLine();

        Console.WriteLine($"{nameof(StreamReaderUsage)} with dispose");

        StreamReaderUsage(DisposeIt);

        Console.WriteLine();

        Console.WriteLine($"{nameof(StreamReaderUsage)} with close");

        StreamReaderUsage(CloseIt);

        Console.WriteLine();

        Console.WriteLine($"{nameof(StreamReaderUsage)} with dispose");

        StreamReaderUsage(DisposeIt, true);

        Console.WriteLine();

        Console.WriteLine($"{nameof(StreamReaderUsage)} with close");

        StreamReaderUsage(CloseIt, true);

        Console.WriteLine();

    }

    public static void DirectUsage(Action<dynamic, Stream> disposeIt)

    {

        var ms = CreateStreamWithText();

​

        disposeIt(ms, ms);

    }

    public static void StreamReaderUsage(Action<dynamic, Stream> disposeIt, bool leaveOpen = false)

    {

        var ms = CreateStreamWithText();

        var sr = new StreamReader(ms, leaveOpen: leaveOpen);

        Console.WriteLine(sr.ReadToEnd());

        ms.Seek(0, SeekOrigin.Begin);

​

        disposeIt(sr, ms);

    }

    public static Stream CreateStreamWithText(string text = "Some text")

    {

        return new MemoryStream(System.Text.Encoding.UTF8.GetBytes(text));

    }

    public static void DisposeIt(dynamic obj, Stream stream)

    {

        Console.WriteLine($"Can read before dispose: {stream.CanRead}");

        obj.Dispose();

        Console.WriteLine($"Can read after dispose: {stream.CanRead}");

    }

    public static void CloseIt(dynamic obj, Stream stream)

    {

        Console.WriteLine($"Can read before dispose: {stream.CanRead}");

        obj.Close();

        Console.WriteLine($"Can read after dispose: {stream.CanRead}");

    }

}