Try

try.cs

public void file_monad_example()
{
    GetLine()
        .Bind(ReadFile)
        .Bind(PrintStrln)
        .Match(success => Console.WriteLine("SUCCESS"),
                failure => Console.WriteLine("FAILURE"));
}

static Try<string> GetLine()
{
    Console.Write("File:");
    return Try(() => Console.ReadLine());
}

static Try<string> ReadFile(string filePath) => Try(() => File.ReadAllText(filePath));

static Try<bool> PrintStrln(string line)
{
    Console.WriteLine(line);
    return Try(true);
}